--- _id: '4372' abstract: - lang: eng text: "Magnetic nanofibers were prepared by electrospinning polymer/metal solutions of poly(acrylonitrile) (PAN) with magnetite (Fe3O4) nanoparticles. At a mass ratio of PAN:magnetite of 2:1, the total solid content in the dimethyl sulfoxide (DMSO) solution was varied between 15 wt.% and 25 wt.%, which represents the limits of the spinnable range. The results show that the most homogeneous nanofiber mats were 21 wt.% solid contents. At 15 wt.% solid contents, a nano-membrane with some fibrous regions was produced. Nanofibers at 25 wt.% had a much larger and more inhomogeneous diameter. Nevertheless, the magnetic properties of all samples were very similar, indicating that the distribution of magnetite nanoparticles in the fibers is comparable in all samples. The results also suggested that the samples spun from solutions with near-ideal solid contents (19–21 wt.%) contain agglomerations of the nanoparticles inside the nanofibers.\r\n " article_number: '19' article_type: original author: - first_name: Ana Karen full_name: Graciano Alvarez, Ana Karen last_name: Graciano Alvarez - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Khorolsuren full_name: Tuvshinbayar, Khorolsuren id: '222971' last_name: Tuvshinbayar - first_name: Laila full_name: Bondzio, Laila last_name: Bondzio - first_name: Inga full_name: Ennen, Inga last_name: Ennen - first_name: Andreas full_name: Hütten, Andreas last_name: Hütten - first_name: Tomasz full_name: Blachowicz, Tomasz last_name: Blachowicz - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 citation: alphadin: 'Graciano Alvarez, Ana Karen ; Dotter, Marius ; Tuvshinbayar, Khorolsuren ; Bondzio, Laila ; Ennen, Inga ; Hütten, Andreas ; Blachowicz, Tomasz ; Ehrmann, Andrea: Electrospinning Poly(acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents. In: Fibers Bd. 12, MDPI AG (2024), Nr. 3' ama: 'Graciano Alvarez AK, Dotter M, Tuvshinbayar K, et al. Electrospinning Poly(acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents. Fibers. 2024;12(3). doi:10.3390/fib12030019' apa: 'Graciano Alvarez, A. K., Dotter, M., Tuvshinbayar, K., Bondzio, L., Ennen, I., Hütten, A., … Ehrmann, A. (2024). Electrospinning Poly(acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents. Fibers, 12(3). https://doi.org/10.3390/fib12030019' bibtex: '@article{Graciano Alvarez_Dotter_Tuvshinbayar_Bondzio_Ennen_Hütten_Blachowicz_Ehrmann_2024, title={Electrospinning Poly(acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents}, volume={12}, DOI={10.3390/fib12030019}, number={319}, journal={Fibers}, publisher={MDPI AG}, author={Graciano Alvarez, Ana Karen and Dotter, Marius and Tuvshinbayar, Khorolsuren and Bondzio, Laila and Ennen, Inga and Hütten, Andreas and Blachowicz, Tomasz and Ehrmann, Andrea}, year={2024} }' chicago: 'Graciano Alvarez, Ana Karen, Marius Dotter, Khorolsuren Tuvshinbayar, Laila Bondzio, Inga Ennen, Andreas Hütten, Tomasz Blachowicz, and Andrea Ehrmann. “Electrospinning Poly(Acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents.” Fibers 12, no. 3 (2024). https://doi.org/10.3390/fib12030019.' ieee: 'A. K. Graciano Alvarez et al., “Electrospinning Poly(acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents,” Fibers, vol. 12, no. 3, 2024.' mla: 'Graciano Alvarez, Ana Karen, et al. “Electrospinning Poly(Acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents.” Fibers, vol. 12, no. 3, 19, MDPI AG, 2024, doi:10.3390/fib12030019.' short: A.K. Graciano Alvarez, M. Dotter, K. Tuvshinbayar, L. Bondzio, I. Ennen, A. Hütten, T. Blachowicz, A. Ehrmann, Fibers 12 (2024). date_created: 2024-02-24T08:00:29Z date_updated: 2024-02-26T07:39:02Z doi: 10.3390/fib12030019 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2024-02-24T07:59:57Z date_updated: 2024-02-24T07:59:57Z file_id: '4373' file_name: _2024_Graciano-Alvarez_Fibers12_19_v2.pdf file_size: 35308642 relation: main_file success: 1 file_date_updated: 2024-02-24T07:59:57Z has_accepted_license: '1' intvolume: ' 12' issue: '3' keyword: - electrospinning - magnetite - homogeneity - fiber diameter - alternating gradient magnetometer (AGM) language: - iso: eng oa: '1' project: - _id: 0ec202b7-cd76-11ed-89f4-a9e1a6dbdaa7 name: Institut für Technische Energie-Systeme publication: Fibers publication_identifier: eissn: - 2079-6439 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: 'Electrospinning Poly(acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '220548' volume: 12 year: '2024' ... --- _id: '3758' abstract: - lang: eng text: " The increasing development and application of wireless devices and systems that radiate electromagnetic waves makes electromagnetic interference (EMI) shielding more and more important in everyday life. In practice, rigid EMI shields are the most commonly used ones. However, for humans or in automotive and aviation applications, flexible, drapable materials, such as textile fabrics, can be more effective and useful. Textile fabrics are usually nonconductive and not magnetic, i.e., they lack the requirements for EMI shielding. However, shielding properties of textile fabrics can be achieved by blending yarns with fine wires or coating fibers or by blending complete textile layers with conductive or magnetic materials. In this paper, shielding textile fabrics and 3D-printed materials, as references with different conductive (and partly also magnetic) properties, are examined. The measurements show a high shielding effectiveness of 80 dB given by densely woven fabrics with a thin metallic coating in the frequency range of 6.5–11 GHz, while large pores in crocheted fabrics significantly reduce the EMI shielding effectiveness, and other samples did not show shielding at all, suggesting that a combination of conductivity and the structure of the samples is responsible for the shielding potential.\r\n " article_number: '9777' article_type: original author: - first_name: Dariusz full_name: Wójcik, Dariusz last_name: Wójcik - first_name: Maciej full_name: Surma, Maciej last_name: Surma - first_name: Mirosław full_name: Magnuski, Mirosław last_name: Magnuski - first_name: Tomasz full_name: Blachowicz, Tomasz last_name: Blachowicz - first_name: Khorolsuren full_name: Tuvshinbayar, Khorolsuren id: '222971' last_name: Tuvshinbayar - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Yusuf full_name: Topuz, Yusuf last_name: Topuz - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 citation: alphadin: 'Wójcik, Dariusz ; Surma, Maciej ; Magnuski, Mirosław ; Blachowicz, Tomasz ; Tuvshinbayar, Khorolsuren ; Dotter, Marius ; Topuz, Yusuf ; Ehrmann, Andrea: Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band. In: Applied Sciences Bd. 13, MDPI AG (2023), Nr. 17' ama: Wójcik D, Surma M, Magnuski M, et al. Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band. Applied Sciences. 2023;13(17). doi:10.3390/app13179777 apa: Wójcik, D., Surma, M., Magnuski, M., Blachowicz, T., Tuvshinbayar, K., Dotter, M., … Ehrmann, A. (2023). Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band. Applied Sciences, 13(17). https://doi.org/10.3390/app13179777 bibtex: '@article{Wójcik_Surma_Magnuski_Blachowicz_Tuvshinbayar_Dotter_Topuz_Ehrmann_2023, title={Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band}, volume={13}, DOI={10.3390/app13179777}, number={179777}, journal={Applied Sciences}, publisher={MDPI AG}, author={Wójcik, Dariusz and Surma, Maciej and Magnuski, Mirosław and Blachowicz, Tomasz and Tuvshinbayar, Khorolsuren and Dotter, Marius and Topuz, Yusuf and Ehrmann, Andrea}, year={2023} }' chicago: Wójcik, Dariusz, Maciej Surma, Mirosław Magnuski, Tomasz Blachowicz, Khorolsuren Tuvshinbayar, Marius Dotter, Yusuf Topuz, and Andrea Ehrmann. “Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band.” Applied Sciences 13, no. 17 (2023). https://doi.org/10.3390/app13179777. ieee: D. Wójcik et al., “Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band,” Applied Sciences, vol. 13, no. 17, 2023. mla: Wójcik, Dariusz, et al. “Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band.” Applied Sciences, vol. 13, no. 17, 9777, MDPI AG, 2023, doi:10.3390/app13179777. short: D. Wójcik, M. Surma, M. Magnuski, T. Blachowicz, K. Tuvshinbayar, M. Dotter, Y. Topuz, A. Ehrmann, Applied Sciences 13 (2023). date_created: 2023-11-25T11:09:44Z date_updated: 2023-12-04T09:31:58Z doi: 10.3390/app13179777 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2023-11-25T11:09:10Z date_updated: 2023-11-25T11:09:10Z file_id: '3759' file_name: _2023_Wojcik_ApplSci13_9777_v2.pdf file_size: 54523499 relation: main_file success: 1 file_date_updated: 2023-11-25T11:09:10Z has_accepted_license: '1' intvolume: ' 13' issue: '17' keyword: - electromagnetic interference (EMI) - shielding effectiveness - conductive coating - metallized fabric - conductive yarn - crocheted fabric - porosity - cover factor language: - iso: eng main_file_link: - open_access: '1' url: https://www.mdpi.com/2076-3417/13/17/9777 oa: '1' publication: Applied Sciences publication_identifier: eissn: - 2076-3417 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Experimental Verification of the Shielding Properties of Selected Textile Materials in the X Frequency Band tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '220548' volume: 13 year: '2023' ... --- _id: '3747' abstract: - lang: eng text: " A first limited approach for the automated production of crocheted fabrics was introduced in 2019. However, the knowledge on crocheted fabrics is very scarce and only few technical applications are presented in the literature. To provide a basis for possible future technical applications, the general tensile properties of crocheted fabrics are explored, and a promising application as composite reinforcement is introduced. Due to the early development state of the crochet machine prototype, conventionally hand-made crocheted fabrics are studied and the benefit of improving the machine is evaluated. The mechanical properties of crocheted fabrics depend significantly on the individual crocheter, but fabrics produced from the same person are sufficiently reproducible for reasonable investigations. Anisotropic properties with a trend toward higher resisted forces in course compared to wale direction were identified with crochets constructed from single crochet (sc) and from half double crochet (hdc) stitches. Furthermore, a tendency toward higher possible loads at larger elongations was revealed for crocheted fabrics compared to knitted ones. To the best of our knowledge, for the first time crocheted aramid fabrics were used in epoxy composites. With a crocheted reinforcement in a non-cut composite produced by vacuum-assisted hand lay-up, significantly higher ultimate tensile strength and Young’s modulus were recorded compared to a knitted one with comparable fracture modes.\r\n " article_number: '15589250231203381' article_type: original author: - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 - first_name: Liska full_name: Steenbock, Liska last_name: Steenbock - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Herbert full_name: Funke, Herbert last_name: Funke - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 citation: alphadin: 'Storck, Jan Lukas ; Steenbock, Liska ; Dotter, Marius ; Funke, Herbert ; Ehrmann, Andrea: Principle capabilities of crocheted fabrics for composite materials. In: Journal of Engineered Fibers and Fabrics Bd. 18, SAGE Publications (2023)' ama: Storck JL, Steenbock L, Dotter M, Funke H, Ehrmann A. Principle capabilities of crocheted fabrics for composite materials. Journal of Engineered Fibers and Fabrics. 2023;18. doi:10.1177/15589250231203381 apa: Storck, J. L., Steenbock, L., Dotter, M., Funke, H., & Ehrmann, A. (2023). Principle capabilities of crocheted fabrics for composite materials. Journal of Engineered Fibers and Fabrics, 18. https://doi.org/10.1177/15589250231203381 bibtex: '@article{Storck_Steenbock_Dotter_Funke_Ehrmann_2023, title={Principle capabilities of crocheted fabrics for composite materials}, volume={18}, DOI={10.1177/15589250231203381}, number={15589250231203380}, journal={Journal of Engineered Fibers and Fabrics}, publisher={SAGE Publications}, author={Storck, Jan Lukas and Steenbock, Liska and Dotter, Marius and Funke, Herbert and Ehrmann, Andrea}, year={2023} }' chicago: Storck, Jan Lukas, Liska Steenbock, Marius Dotter, Herbert Funke, and Andrea Ehrmann. “Principle Capabilities of Crocheted Fabrics for Composite Materials.” Journal of Engineered Fibers and Fabrics 18 (2023). https://doi.org/10.1177/15589250231203381. ieee: J. L. Storck, L. Steenbock, M. Dotter, H. Funke, and A. Ehrmann, “Principle capabilities of crocheted fabrics for composite materials,” Journal of Engineered Fibers and Fabrics, vol. 18, 2023. mla: Storck, Jan Lukas, et al. “Principle Capabilities of Crocheted Fabrics for Composite Materials.” Journal of Engineered Fibers and Fabrics, vol. 18, 15589250231203380, SAGE Publications, 2023, doi:10.1177/15589250231203381. short: J.L. Storck, L. Steenbock, M. Dotter, H. Funke, A. Ehrmann, Journal of Engineered Fibers and Fabrics 18 (2023). date_created: 2023-11-25T11:01:26Z date_updated: 2023-12-04T09:18:36Z doi: 10.1177/15589250231203381 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2023-11-25T11:00:12Z date_updated: 2023-11-25T11:00:12Z file_id: '3748' file_name: _2023_Storck_JEFF18_15589250231203381.pdf file_size: 2086741 relation: main_file success: 1 file_date_updated: 2023-11-25T11:00:12Z funded_apc: '1' has_accepted_license: '1' intvolume: ' 18' language: - iso: eng main_file_link: - open_access: '1' url: https://journals.sagepub.com/doi/10.1177/15589250231203381 oa: '1' publication: Journal of Engineered Fibers and Fabrics publication_identifier: eissn: - 1558-9250 issn: - 1558-9250 publication_status: published publisher: SAGE Publications quality_controlled: '1' status: public title: Principle capabilities of crocheted fabrics for composite materials tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '220548' volume: 18 year: '2023' ... --- _id: '3595' abstract: - lang: eng text: "Nanofiber mats can be electrospun by different techniques, usually subdivided into needle-based and needleless. The latter allow for producing large-area nanofiber mats, e.g., with a width of 50 cm and lengths of several meters, if electrospinning proceeds for several hours, depending on the required thickness. Even spinning smaller samples, however, raises the question of homogeneity, especially if defined mechanical properties or a defined thickness is required, e.g., for filtration purposes. Very often, only the inner parts of such electrospun nanofiber mats are used to avoid too high variation of the nanofiber mat thickness. For this study, we used wire-based electrospinning to prepare nanofiber mats with slightly varying spinning parameters. We report investigations of the thickness and mass per unit area, measured on different positions of needleless electrospun nanofiber mats. Martindale abrasion tests on different positions are added as a measure of the mechanical properties. All nanofiber mats show unexpectedly strong variations of thickness, mass per unit area, and porosity, as calculated from the apparent density of the membranes. The thickness especially varied by nearly one order of magnitude within one sample, while the apparent density, as the most uniform parameter, still showed variations by more than a factor of two within one sample. This shows that even for apparently highly homogeneous areas of such nanofiber mats, variations cannot be neglected for all potential applications.\r\n " article_number: '2507' article_type: original author: - first_name: Edona full_name: Morina, Edona last_name: Morina - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Christoph full_name: Döpke, Christoph last_name: Döpke - first_name: Ilda full_name: Kola, Ilda last_name: Kola - first_name: Tatjana full_name: Spahiu, Tatjana last_name: Spahiu - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 citation: alphadin: 'Morina, Edona ; Dotter, Marius ; Döpke, Christoph ; Kola, Ilda ; Spahiu, Tatjana ; Ehrmann, Andrea: Homogeneity of Needleless Electrospun Nanofiber Mats. In: Nanomaterials Bd. 13, MDPI AG (2023), Nr. 18' ama: Morina E, Dotter M, Döpke C, Kola I, Spahiu T, Ehrmann A. Homogeneity of Needleless Electrospun Nanofiber Mats. Nanomaterials. 2023;13(18). doi:10.3390/nano13182507 apa: Morina, E., Dotter, M., Döpke, C., Kola, I., Spahiu, T., & Ehrmann, A. (2023). Homogeneity of Needleless Electrospun Nanofiber Mats. Nanomaterials, 13(18). https://doi.org/10.3390/nano13182507 bibtex: '@article{Morina_Dotter_Döpke_Kola_Spahiu_Ehrmann_2023, title={Homogeneity of Needleless Electrospun Nanofiber Mats}, volume={13}, DOI={10.3390/nano13182507}, number={182507}, journal={Nanomaterials}, publisher={MDPI AG}, author={Morina, Edona and Dotter, Marius and Döpke, Christoph and Kola, Ilda and Spahiu, Tatjana and Ehrmann, Andrea}, year={2023} }' chicago: Morina, Edona, Marius Dotter, Christoph Döpke, Ilda Kola, Tatjana Spahiu, and Andrea Ehrmann. “Homogeneity of Needleless Electrospun Nanofiber Mats.” Nanomaterials 13, no. 18 (2023). https://doi.org/10.3390/nano13182507. ieee: E. Morina, M. Dotter, C. Döpke, I. Kola, T. Spahiu, and A. Ehrmann, “Homogeneity of Needleless Electrospun Nanofiber Mats,” Nanomaterials, vol. 13, no. 18, 2023. mla: Morina, Edona, et al. “Homogeneity of Needleless Electrospun Nanofiber Mats.” Nanomaterials, vol. 13, no. 18, 2507, MDPI AG, 2023, doi:10.3390/nano13182507. short: E. Morina, M. Dotter, C. Döpke, I. Kola, T. Spahiu, A. Ehrmann, Nanomaterials 13 (2023). date_created: 2023-09-13T07:02:01Z date_updated: 2023-09-18T07:43:15Z doi: 10.3390/nano13182507 intvolume: ' 13' issue: '18' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3390/nano13182507 oa: '1' publication: Nanomaterials publication_identifier: eissn: - 2079-4991 publication_status: published publisher: MDPI AG status: public title: Homogeneity of Needleless Electrospun Nanofiber Mats tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '245590' volume: 13 year: '2023' ... --- _id: '3301' abstract: - lang: eng text: " Dye-sensitized solar cells have been under development for the last three decades but are yet to see the market. This has been attributed to stability issues of the electrolyte in the cell. Electrolytes can be liquid, quasi-solid, or solid. Liquid electrolytes were the first to be developed and, therefore, have been subject to radical revisions in both composition and applicability. They have shown the best power conversion efficiencies but have poor thermal stability. Although quasi-solid and solid-state electrolytes were developed to overcome these stability issues, they too have their limits. The aim of this paper is to explore the development of liquid electrolytes, outlining the current state of the technology and considering their potential in the photovoltaic market.\r\n " article_number: '5129' article_type: review author: - first_name: Angellina full_name: Ebenezer Anitha, Angellina last_name: Ebenezer Anitha - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 citation: alphadin: 'Ebenezer Anitha, Angellina ; Dotter, Marius: A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC). In: Energies Bd. 16, MDPI AG (2023), Nr. 13' ama: Ebenezer Anitha A, Dotter M. A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC). Energies. 2023;16(13). doi:10.3390/en16135129 apa: Ebenezer Anitha, A., & Dotter, M. (2023). A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC). Energies, 16(13). https://doi.org/10.3390/en16135129 bibtex: '@article{Ebenezer Anitha_Dotter_2023, title={A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC)}, volume={16}, DOI={10.3390/en16135129}, number={135129}, journal={Energies}, publisher={MDPI AG}, author={Ebenezer Anitha, Angellina and Dotter, Marius}, year={2023} }' chicago: Ebenezer Anitha, Angellina, and Marius Dotter. “A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC).” Energies 16, no. 13 (2023). https://doi.org/10.3390/en16135129. ieee: A. Ebenezer Anitha and M. Dotter, “A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC),” Energies, vol. 16, no. 13, 2023. mla: Ebenezer Anitha, Angellina, and Marius Dotter. “A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC).” Energies, vol. 16, no. 13, 5129, MDPI AG, 2023, doi:10.3390/en16135129. short: A. Ebenezer Anitha, M. Dotter, Energies 16 (2023). date_created: 2023-07-05T07:15:50Z date_updated: 2023-07-05T10:26:15Z doi: 10.3390/en16135129 file: - access_level: open_access content_type: application/pdf creator: mdotter date_created: 2023-07-05T07:14:52Z date_updated: 2023-07-05T07:14:52Z file_id: '3302' file_name: energies-16-05129.pdf file_size: 1973975 relation: main_file success: 1 file_date_updated: 2023-07-05T07:14:52Z has_accepted_license: '1' intvolume: ' 16' issue: '13' language: - iso: eng main_file_link: - open_access: '1' url: https://www.mdpi.com/1996-1073/16/13/5129 oa: '1' publication: Energies publication_identifier: eissn: - 1996-1073 publication_status: published publisher: MDPI AG status: public title: A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC) tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '216066' volume: 16 year: '2023' ... --- _id: '2577' abstract: - lang: eng text: " In the context of the energy transition to renewables, the spotlight is on large systems connected to the power grid, but this also offers room for smaller, more specialized applications. Photovoltaics, in particular, offer the possibility of the self-sufficient supply of smaller electrical appliances on smaller scales. The idea of making previously unused surfaces usable is by no means new, and textiles such as backpacks, tent tarpaulins and other covers are particularly suitable for this purpose. In order to create a non-toxic and easily recyclable product, dye-sensitized solar cells (DSSC), which can be manufactured through electrospinning with a textile feel, are an attractive option here. Therefore, this paper investigates a needle electrospun nanofiber mat, whose spin solution contains polyacrylonitrile (PAN) dissolved in dimethyl sulfoxide (DMSO) as well es TiO2 nanoparticles. In addition to characterization, the nanofiber mat was dyed in a solution containing anthocyanins to later serve as a front electrode for a dye-sensitized solar cell. Although of lower efficiency, the DSSC provides stable results over two months of measurement.\r\n " article_type: original author: - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Lion Lukas full_name: Placke, Lion Lukas last_name: Placke - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 - first_name: Uwe full_name: Güth, Uwe last_name: Güth citation: alphadin: 'Dotter, Marius ; Placke, Lion Lukas ; Storck, Jan Lukas ; Güth, Uwe: Characterization of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar Cells. In: Tekstilec Bd. 65, University of Ljubljana (2023), Nr. 4, S. 298–306' ama: Dotter M, Placke LL, Storck JL, Güth U. Characterization of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar Cells. Tekstilec. 2023;65(4):298-306. doi:10.14502/tekstilec.65.2022081 apa: Dotter, M., Placke, L. L., Storck, J. L., & Güth, U. (2023). Characterization of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar Cells. Tekstilec, 65(4), 298–306. https://doi.org/10.14502/tekstilec.65.2022081 bibtex: '@article{Dotter_Placke_Storck_Güth_2023, title={Characterization of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar Cells}, volume={65}, DOI={10.14502/tekstilec.65.2022081}, number={4}, journal={Tekstilec}, publisher={University of Ljubljana}, author={Dotter, Marius and Placke, Lion Lukas and Storck, Jan Lukas and Güth, Uwe}, year={2023}, pages={298–306} }' chicago: 'Dotter, Marius, Lion Lukas Placke, Jan Lukas Storck, and Uwe Güth. “Characterization of PAN-TiO2 Nanofiber Mats and Their Application as Front Electrodes for Dye-Sensitized Solar Cells.” Tekstilec 65, no. 4 (2023): 298–306. https://doi.org/10.14502/tekstilec.65.2022081.' ieee: M. Dotter, L. L. Placke, J. L. Storck, and U. Güth, “Characterization of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar Cells,” Tekstilec, vol. 65, no. 4, pp. 298–306, 2023. mla: Dotter, Marius, et al. “Characterization of PAN-TiO2 Nanofiber Mats and Their Application as Front Electrodes for Dye-Sensitized Solar Cells.” Tekstilec, vol. 65, no. 4, University of Ljubljana, 2023, pp. 298–306, doi:10.14502/tekstilec.65.2022081. short: M. Dotter, L.L. Placke, J.L. Storck, U. Güth, Tekstilec 65 (2023) 298–306. date_created: 2023-03-10T14:44:25Z date_updated: 2023-05-12T08:54:45Z doi: 10.14502/tekstilec.65.2022081 file: - access_level: open_access content_type: application/pdf creator: mdotter date_created: 2023-03-10T14:42:20Z date_updated: 2023-03-10T14:42:20Z file_id: '2582' file_name: 10.14502Tekstilec2022.65.2022081.pdf file_size: 514696 relation: main_file success: 1 file_date_updated: 2023-03-10T14:42:20Z has_accepted_license: '1' intvolume: ' 65' issue: '4' keyword: - dye-sensitized solar cells (DSSC) - long-term stability - electrospinning - polyacrylonitrile (PAN) - TiO2 nanoparticles language: - iso: eng oa: '1' page: 298-306 publication: Tekstilec publication_identifier: eissn: - 2350-3696 issn: - 0351-3386 publication_status: published publisher: University of Ljubljana status: public title: Characterization of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar Cells tmp: image: /images/cc_by_sa.png legal_code_url: https://creativecommons.org/licenses/by-sa/4.0/legalcode name: Creative Commons Attribution-ShareAlike 4.0 International Public License (CC BY-SA 4.0) short: CC BY-SA (4.0) type: journal_article user_id: '216459' volume: 65 year: '2023' ... --- _id: '2285' abstract: - lang: eng text: Long-term stability belongs to the main problems of dye-sensitized solar cells (DSSCs), impeding their practical application. Especially the usually fluid electrolyte tends to evaporation, thus drying the cells if they are not perfectly sealed. While gelling the electrolyte with different polymers often reduces the efficiency, using a glycerol-based electrolyte was already shown to result in similar or even improved efficiency. At the same time, drying of the cells was significantly reduced. Here we report on improving glycerol-based electrolytes further by varying the iodine-triiodide ratio and the overall concentration in the electrolyte. Long-term tests with unsealed glass-based DSSCs were performed over more than 1 year, showing that most of the cells increased efficiency during this time, opposite to cells with a commercial solvent-based iodine-triiodide electrolyte which completely dried after 2–3 months. article_type: original author: - first_name: Katrin full_name: Gossen, Katrin last_name: Gossen - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Bennet full_name: Brockhagen, Bennet id: '237316' last_name: Brockhagen - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 citation: alphadin: 'Gossen, Katrin ; Dotter, Marius ; Brockhagen, Bennet ; Storck, Jan Lukas ; Ehrmann, Andrea: Long-term investigation of unsealed DSSCs with glycerol-based electrolytes of different compositions. In: AIMS Materials Science Bd. 9 (2022), Nr. 2, S. 283–296' ama: Gossen K, Dotter M, Brockhagen B, Storck JL, Ehrmann A. Long-term investigation of unsealed DSSCs with glycerol-based electrolytes of different compositions. AIMS Materials Science . 2022;9(2):283-296. doi:10.3934/matersci.2022017 apa: Gossen, K., Dotter, M., Brockhagen, B., Storck, J. L., & Ehrmann, A. (2022). Long-term investigation of unsealed DSSCs with glycerol-based electrolytes of different compositions. AIMS Materials Science , 9(2), 283–296. https://doi.org/10.3934/matersci.2022017 bibtex: '@article{Gossen_Dotter_Brockhagen_Storck_Ehrmann_2022, title={Long-term investigation of unsealed DSSCs with glycerol-based electrolytes of different compositions}, volume={9}, DOI={10.3934/matersci.2022017}, number={2}, journal={AIMS Materials Science }, author={Gossen, Katrin and Dotter, Marius and Brockhagen, Bennet and Storck, Jan Lukas and Ehrmann, Andrea}, year={2022}, pages={283–296} }' chicago: 'Gossen, Katrin, Marius Dotter, Bennet Brockhagen, Jan Lukas Storck, and Andrea Ehrmann. “Long-Term Investigation of Unsealed DSSCs with Glycerol-Based Electrolytes of Different Compositions.” AIMS Materials Science 9, no. 2 (2022): 283–96. https://doi.org/10.3934/matersci.2022017.' ieee: K. Gossen, M. Dotter, B. Brockhagen, J. L. Storck, and A. Ehrmann, “Long-term investigation of unsealed DSSCs with glycerol-based electrolytes of different compositions,” AIMS Materials Science , vol. 9, no. 2, pp. 283–296, 2022. mla: Gossen, Katrin, et al. “Long-Term Investigation of Unsealed DSSCs with Glycerol-Based Electrolytes of Different Compositions.” AIMS Materials Science , vol. 9, no. 2, 2022, pp. 283–96, doi:10.3934/matersci.2022017. short: K. Gossen, M. Dotter, B. Brockhagen, J.L. Storck, A. Ehrmann, AIMS Materials Science 9 (2022) 283–296. date_created: 2022-12-23T14:59:41Z date_updated: 2024-03-27T14:01:15Z doi: 10.3934/matersci.2022017 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2022-12-23T14:59:22Z date_updated: 2022-12-23T14:59:22Z file_id: '2286' file_name: _2022_Gossen_AIMS-Mater9_283-296.pdf file_size: 1112694 relation: main_file success: 1 file_date_updated: 2022-12-23T14:59:22Z funded_apc: '1' has_accepted_license: '1' intvolume: ' 9' issue: '2' keyword: - dye-sensitized solar cells (DSSCs) - glycerol - electrolyte - iodine-triiodide - natural dye - long-term study language: - iso: eng oa: '1' page: 283-296 publication: 'AIMS Materials Science ' publication_status: published quality_controlled: '1' status: public title: Long-term investigation of unsealed DSSCs with glycerol-based electrolytes of different compositions tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article urn: urn:nbn:de:hbz:bi10-22851 user_id: '216459' volume: 9 year: '2022' ... --- _id: '2029' abstract: - lang: eng text: " Keratin is one of the most important protein materials and can act as a sustainable biopolymer for manifold applications. This paper reports on a sustainable extraction method for keratin from wool fiber materials. The use of this extracted keratin for polymer film preparation and preparation of nano-composite materials by electrospinning is investigated. The preparation of keratin films is done in combination with the both biopolymers alginate and pectin. Keratin nanofibers are prepared in combination with the polymer polyacrylonitrile PAN. A view on antibacterial properties of the prepared films is given. As further analytic methods, Fourier-transform infrared (FT-IR) spectroscopy, thermogravimetry, and scanning electron microscopy (SEM) are used. Finally, the preparation of new keratin containing materials is described, which may be used in future for biomedical applications.\r\n " article_number: '155892502210904' article_type: original author: - first_name: Sahil full_name: Goyal, Sahil last_name: Goyal - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Elise full_name: Diestelhorst, Elise last_name: Diestelhorst - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 - first_name: Boris full_name: Mahltig, Boris last_name: Mahltig citation: alphadin: 'Goyal, Sahil ; Dotter, Marius ; Diestelhorst, Elise ; Storck, Jan Lukas ; Ehrmann, Andrea ; Mahltig, Boris: Extraction of keratin from wool and its use as biopolymer in film formation and in electrospinning for composite material processing. In: Journal of Engineered Fibers and Fabrics Bd. 17, SAGE Publications (2022)' ama: Goyal S, Dotter M, Diestelhorst E, Storck JL, Ehrmann A, Mahltig B. Extraction of keratin from wool and its use as biopolymer in film formation and in electrospinning for composite material processing. Journal of Engineered Fibers and Fabrics. 2022;17. doi:10.1177/15589250221090499 apa: Goyal, S., Dotter, M., Diestelhorst, E., Storck, J. L., Ehrmann, A., & Mahltig, B. (2022). Extraction of keratin from wool and its use as biopolymer in film formation and in electrospinning for composite material processing. Journal of Engineered Fibers and Fabrics, 17. https://doi.org/10.1177/15589250221090499 bibtex: '@article{Goyal_Dotter_Diestelhorst_Storck_Ehrmann_Mahltig_2022, title={Extraction of keratin from wool and its use as biopolymer in film formation and in electrospinning for composite material processing}, volume={17}, DOI={10.1177/15589250221090499}, number={155892502210904}, journal={Journal of Engineered Fibers and Fabrics}, publisher={SAGE Publications}, author={Goyal, Sahil and Dotter, Marius and Diestelhorst, Elise and Storck, Jan Lukas and Ehrmann, Andrea and Mahltig, Boris}, year={2022} }' chicago: Goyal, Sahil, Marius Dotter, Elise Diestelhorst, Jan Lukas Storck, Andrea Ehrmann, and Boris Mahltig. “Extraction of Keratin from Wool and Its Use as Biopolymer in Film Formation and in Electrospinning for Composite Material Processing.” Journal of Engineered Fibers and Fabrics 17 (2022). https://doi.org/10.1177/15589250221090499. ieee: S. Goyal, M. Dotter, E. Diestelhorst, J. L. Storck, A. Ehrmann, and B. Mahltig, “Extraction of keratin from wool and its use as biopolymer in film formation and in electrospinning for composite material processing,” Journal of Engineered Fibers and Fabrics, vol. 17, 2022. mla: Goyal, Sahil, et al. “Extraction of Keratin from Wool and Its Use as Biopolymer in Film Formation and in Electrospinning for Composite Material Processing.” Journal of Engineered Fibers and Fabrics, vol. 17, 155892502210904, SAGE Publications, 2022, doi:10.1177/15589250221090499. short: S. Goyal, M. Dotter, E. Diestelhorst, J.L. Storck, A. Ehrmann, B. Mahltig, Journal of Engineered Fibers and Fabrics 17 (2022). date_created: 2022-07-14T17:47:42Z date_updated: 2024-03-27T14:01:14Z doi: 10.1177/15589250221090499 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2022-07-14T17:47:05Z date_updated: 2022-07-14T17:47:05Z file_id: '2030' file_name: _2022_Goyal_JEFF17_15589250221090499.pdf file_size: 4643518 relation: main_file success: 1 file_date_updated: 2022-07-14T17:47:05Z has_accepted_license: '1' intvolume: ' 17' keyword: - Keratin - wool - electrospinning - SEM - FT-IR spectroscopy - antimicrobial - antibacterial language: - iso: eng oa: '1' publication: Journal of Engineered Fibers and Fabrics publication_identifier: eissn: - 1558-9250 issn: - 1558-9250 publication_status: published publisher: SAGE Publications quality_controlled: '1' status: public title: Extraction of keratin from wool and its use as biopolymer in film formation and in electrospinning for composite material processing tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article urn: urn:nbn:de:hbz:bi10-20293 user_id: '216459' volume: 17 year: '2022' ... --- _id: '1412' abstract: - lang: eng text: " In times of climate change and dwindling fossil resources, the need for sustainable renewable energy technologies gains importance, increasingly fast. However, the state of the art technologies are energy intensive in their production, like monocrystalline photovoltaic, or even consist of not recyclable composite material, in the case of wind turbine blades. Despite a lack in efficiency and stability, dye sensitized solar cells (DSSC) have a high potential to supplement the state of the art green energy technology in future. With low production costs and no necessity for toxic compounds DSSCs are a potential product, which could circulate in the loops of a circular economy. Therefore, with this paper, we provide the status of research on DSSC recycling and an outlook on how recycling streams could be realized in the future for glass-based DSSCs without toxic components. The overview includes work on using recycled material to build DSSCs and extending the life of a DSSC, e.g., through rehydration. We also illustrate the state of sustainability research for DSSCs using the VOSviewer tool. To date, the term sustainability appears in 35 of 24,441 publications on DSSCs. In view of the global challenges, sustainability should be researched more seriously because it is as important as the efficiency and stability of DSSCs.\r\n " alternative_id: - '4191' article_number: '3741' author: - first_name: Fabian full_name: Schoden, Fabian id: '210954' last_name: Schoden orcid: 0000-0002-2481-7141 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-2481-7141/work/96000574 - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0001-8398-1809/work/96000575 - first_name: Dörthe full_name: Knefelkamp, Dörthe last_name: Knefelkamp - first_name: Tomasz full_name: Blachowicz, Tomasz last_name: Blachowicz - first_name: Eva full_name: Schwenzfeier-Hellkamp, Eva id: '72528' last_name: Schwenzfeier-Hellkamp orcid: 0000-0002-3020-1343 citation: alphadin: 'Schoden, Fabian ; Dotter, Marius ; Knefelkamp, Dörthe ; Blachowicz, Tomasz ; Schwenzfeier-Hellkamp, Eva: Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells. In: Energies Bd. 14, MDPI AG (2021), Nr. 13' ama: Schoden F, Dotter M, Knefelkamp D, Blachowicz T, Schwenzfeier-Hellkamp E. Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells. Energies. 2021;14(13). doi:10.3390/en14133741 apa: Schoden, F., Dotter, M., Knefelkamp, D., Blachowicz, T., & Schwenzfeier-Hellkamp, E. (2021). Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells. Energies, 14(13). https://doi.org/10.3390/en14133741 bibtex: '@article{Schoden_Dotter_Knefelkamp_Blachowicz_Schwenzfeier-Hellkamp_2021, title={Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells}, volume={14}, DOI={10.3390/en14133741}, number={133741}, journal={Energies}, publisher={MDPI AG}, author={Schoden, Fabian and Dotter, Marius and Knefelkamp, Dörthe and Blachowicz, Tomasz and Schwenzfeier-Hellkamp, Eva}, year={2021} }' chicago: Schoden, Fabian, Marius Dotter, Dörthe Knefelkamp, Tomasz Blachowicz, and Eva Schwenzfeier-Hellkamp. “Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells.” Energies 14, no. 13 (2021). https://doi.org/10.3390/en14133741. ieee: F. Schoden, M. Dotter, D. Knefelkamp, T. Blachowicz, and E. Schwenzfeier-Hellkamp, “Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells,” Energies, vol. 14, no. 13, 2021. mla: Schoden, Fabian, et al. “Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells.” Energies, vol. 14, no. 13, 3741, MDPI AG, 2021, doi:10.3390/en14133741. short: F. Schoden, M. Dotter, D. Knefelkamp, T. Blachowicz, E. Schwenzfeier-Hellkamp, Energies 14 (2021). date_created: 2021-06-24T08:07:11Z date_updated: 2024-03-07T11:57:57Z department: - _id: '103' doi: 10.3390/en14133741 intvolume: ' 14' issue: '13' language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: Energies publication_identifier: eissn: - 1996-1073 publication_status: published publisher: MDPI AG quality_controlled: '1' related_material: record: - id: '2091' relation: later_version status: public status: public title: Review of State of the Art Recycling Methods in the Context of Dye Sensitized Solar Cells tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '220548' volume: 14 year: '2021' ... --- _id: '2169' abstract: - lang: eng text: " The electrolyte for dye-sensitized solar cells (DSSCs) is subject of constant innovation, as the problems of leakage and drying greatly reduce the long-term stability of a device. One possible way to solve these problems is the use of gel polymer electrolytes (GPEs) with a gelling structure, which offer different advantages based on the used polymers. Here, potential GPE systems based on dimethyl sulfoxide (DMSO) as solvent for low-cost, non-toxic and environmentally friendly DSSCs were investigated comparatively. In order to observe a potential improvement in long-term stability, the efficiencies of DSSCs with different GPEs, consisting of polyacrylonitrile (PAN), acrylonitrile-butadiene-styrene (ABS), polyvinyl alcohol (PVA) and poly (vinylidene fluoride) (PVDF) and their blends with poly (ethylene oxide) (PEO), were investigated over a period of 120 days. The results indicate that blending the polymers with PEO achieves better results concerning long-term stability and overall efficiency. Especially the mixtures with PAN and PVDF show only slight signs of deterioration after 120 days of measurement.\r\n \ " article_number: '5834' author: - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 - first_name: Michelle full_name: Surjawidjaja, Michelle last_name: Surjawidjaja - first_name: Sonia full_name: Adabra, Sonia last_name: Adabra - first_name: Timo full_name: Grothe, Timo id: '221330' last_name: Grothe orcid: 0000-0002-9099-4277 citation: alphadin: 'Dotter, Marius ; Storck, Jan Lukas ; Surjawidjaja, Michelle ; Adabra, Sonia ; Grothe, Timo: Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells. In: Applied Sciences Bd. 11, MDPI AG (2021), Nr. 13' ama: Dotter M, Storck JL, Surjawidjaja M, Adabra S, Grothe T. Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells. Applied Sciences. 2021;11(13). doi:10.3390/app11135834 apa: Dotter, M., Storck, J. L., Surjawidjaja, M., Adabra, S., & Grothe, T. (2021). Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells. Applied Sciences, 11(13). https://doi.org/10.3390/app11135834 bibtex: '@article{Dotter_Storck_Surjawidjaja_Adabra_Grothe_2021, title={Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells}, volume={11}, DOI={10.3390/app11135834}, number={135834}, journal={Applied Sciences}, publisher={MDPI AG}, author={Dotter, Marius and Storck, Jan Lukas and Surjawidjaja, Michelle and Adabra, Sonia and Grothe, Timo}, year={2021} }' chicago: Dotter, Marius, Jan Lukas Storck, Michelle Surjawidjaja, Sonia Adabra, and Timo Grothe. “Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells.” Applied Sciences 11, no. 13 (2021). https://doi.org/10.3390/app11135834. ieee: M. Dotter, J. L. Storck, M. Surjawidjaja, S. Adabra, and T. Grothe, “Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells,” Applied Sciences, vol. 11, no. 13, 2021. mla: Dotter, Marius, et al. “Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells.” Applied Sciences, vol. 11, no. 13, 5834, MDPI AG, 2021, doi:10.3390/app11135834. short: M. Dotter, J.L. Storck, M. Surjawidjaja, S. Adabra, T. Grothe, Applied Sciences 11 (2021). date_created: 2022-10-27T07:25:56Z date_updated: 2022-11-08T14:00:05Z doi: 10.3390/app11135834 intvolume: ' 11' issue: '13' language: - iso: eng publication: Applied Sciences publication_identifier: eissn: - 2076-3417 publication_status: published publisher: MDPI AG status: public title: Investigation of the Long-Term Stability of Different Polymers and Their Blends with PEO to Produce Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '245590' volume: 11 year: '2021' ... --- _id: '1082' abstract: - lang: eng text: " Alongside efficiency, long-term stability of dye-sensitized solar cells (DSSCs) is a key factor regarding their commercialization. One suitable and cost-effective method to increase the long-term stability is to prevent leakage and evaporation of the electrolyte by gelling it with polymers such as poly(ethylene oxide) (PEO) and gaining a gel polymer electrolyte (GPE). In this study, a GPE based on PEO and glycerol is investigated for the first time as electrolyte for environmentally friendly DSSCs with natural dyes. To evaluate the novel glycerol/PEO GPE, the ionic conductivity and resulting efficiency progressions of DSSCs were measured for 75 days. Different molecular weights (MWs) of PEO and blending with poly(vinylidene fluoride) (PVDF) had negligible impact on efficiencies. 17 wt% PEO was found to be more suitable than lower concentrations and resulted in a relatively high efficiency over 75 days. A glycerol electrolyte without PEO had higher ionic conductivity and achieved higher efficiencies as well but leaked from the unsealed DSSCs. In addition, the reproducibility was examined especially, which appeared to be reduced by considerable differences between identical DSSCs and between measurements of the same DSSC at different times. This emphasizes the relevance of studying multiple DSSC per sample to ensure reliable results.\r\n \ " article_number: '1158' author: - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-6841-8791/work/95037521 - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0001-8398-1809/work/95141267 - first_name: Bennet full_name: Brockhagen, Bennet id: '237316' last_name: Brockhagen - first_name: Timo full_name: Grothe, Timo id: '221330' last_name: Grothe orcid: 0000-0002-9099-4277 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94758797 citation: alphadin: 'Storck, Jan Lukas ; Dotter, Marius ; Brockhagen, Bennet ; Grothe, Timo: Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility. In: Crystals Bd. 10, MDPI AG (2020), Nr. 12' ama: Storck JL, Dotter M, Brockhagen B, Grothe T. Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility. Crystals. 2020;10(12). doi:10.3390/cryst10121158 apa: Storck, J. L., Dotter, M., Brockhagen, B., & Grothe, T. (2020). Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility. Crystals, 10(12). https://doi.org/10.3390/cryst10121158 bibtex: '@article{Storck_Dotter_Brockhagen_Grothe_2020, title={Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility}, volume={10}, DOI={10.3390/cryst10121158}, number={121158}, journal={Crystals}, publisher={MDPI AG}, author={Storck, Jan Lukas and Dotter, Marius and Brockhagen, Bennet and Grothe, Timo}, year={2020} }' chicago: Storck, Jan Lukas, Marius Dotter, Bennet Brockhagen, and Timo Grothe. “Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility.” Crystals 10, no. 12 (2020). https://doi.org/10.3390/cryst10121158. ieee: J. L. Storck, M. Dotter, B. Brockhagen, and T. Grothe, “Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility,” Crystals, vol. 10, no. 12, 2020. mla: Storck, Jan Lukas, et al. “Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility.” Crystals, vol. 10, no. 12, 1158, MDPI AG, 2020, doi:10.3390/cryst10121158. short: J.L. Storck, M. Dotter, B. Brockhagen, T. Grothe, Crystals 10 (2020). date_created: 2021-05-31T18:59:12Z date_updated: 2023-05-12T10:30:08Z doi: 10.3390/cryst10121158 intvolume: ' 10' issue: '12' language: - iso: eng publication: Crystals publication_identifier: eissn: - 2073-4352 publication_status: published publisher: MDPI AG status: public title: Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '216459' volume: 10 year: '2020' ... --- _id: '1083' abstract: - lang: eng text: " To overcome the long-term stability problems of dye-sensitized solar cells (DSSC) due to solvent evaporation and leakage, gelling the electrolyte with polymers is an appropriate option. Especially for future applications of textile-based DSSCs, which require cost-effective and environmentally friendly materials, such an improvement of the electrolyte is necessary. Therefore, the temporal progressions of efficiencies and fill factors of non-toxic glass-based DSSCs resulting from different gel electrolytes with poly(ethylene oxide) (PEO) are investigated over 52 days comparatively. Dimethyl sulfoxide (DMSO) proved to be a suitable non-toxic solvent for the proposed gel electrolyte without ionic liquids. A PEO concentration of 17.4 wt% resulted in an optimal compromise with a relatively high efficiency over the entire period. Lower concentrations resulted in higher efficiencies during the first days but in a poorer long-term stability, whereas a higher PEO concentration resulted in an overall lower efficiency. Solvent remaining in the gel electrolyte during application was found advantageous compared to previous solvent evaporation. In contrast to a commercial liquid electrolyte, the long-term stability regarding the efficiency was improved successfully with a similar fill factor and thus equal quality.\r\n " article_number: '3035' author: - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-6841-8791/work/95037562 - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0001-8398-1809/work/95141270 - first_name: Sonia full_name: Adabra, Sonia last_name: Adabra - first_name: Michelle full_name: Surjawidjaja, Michelle last_name: Surjawidjaja - first_name: Bennet full_name: Brockhagen, Bennet id: '237316' last_name: Brockhagen - first_name: Timo full_name: Grothe, Timo id: '221330' last_name: Grothe orcid: 0000-0002-9099-4277 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94758793 citation: alphadin: 'Storck, Jan Lukas ; Dotter, Marius ; Adabra, Sonia ; Surjawidjaja, Michelle ; Brockhagen, Bennet ; Grothe, Timo: Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(ethylene oxide) Gel Electrolytes for Future Textile-Based Solar Cells. In: Polymers Bd. 12, MDPI AG (2020), Nr. 12' ama: Storck JL, Dotter M, Adabra S, Surjawidjaja M, Brockhagen B, Grothe T. Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(ethylene oxide) Gel Electrolytes for Future Textile-Based Solar Cells. Polymers. 2020;12(12). doi:10.3390/polym12123035 apa: Storck, J. L., Dotter, M., Adabra, S., Surjawidjaja, M., Brockhagen, B., & Grothe, T. (2020). Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(ethylene oxide) Gel Electrolytes for Future Textile-Based Solar Cells. Polymers, 12(12). https://doi.org/10.3390/polym12123035 bibtex: '@article{Storck_Dotter_Adabra_Surjawidjaja_Brockhagen_Grothe_2020, title={Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(ethylene oxide) Gel Electrolytes for Future Textile-Based Solar Cells}, volume={12}, DOI={10.3390/polym12123035}, number={123035}, journal={Polymers}, publisher={MDPI AG}, author={Storck, Jan Lukas and Dotter, Marius and Adabra, Sonia and Surjawidjaja, Michelle and Brockhagen, Bennet and Grothe, Timo}, year={2020} }' chicago: Storck, Jan Lukas, Marius Dotter, Sonia Adabra, Michelle Surjawidjaja, Bennet Brockhagen, and Timo Grothe. “Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(Ethylene Oxide) Gel Electrolytes for Future Textile-Based Solar Cells.” Polymers 12, no. 12 (2020). https://doi.org/10.3390/polym12123035. ieee: J. L. Storck, M. Dotter, S. Adabra, M. Surjawidjaja, B. Brockhagen, and T. Grothe, “Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(ethylene oxide) Gel Electrolytes for Future Textile-Based Solar Cells,” Polymers, vol. 12, no. 12, 2020. mla: Storck, Jan Lukas, et al. “Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(Ethylene Oxide) Gel Electrolytes for Future Textile-Based Solar Cells.” Polymers, vol. 12, no. 12, 3035, MDPI AG, 2020, doi:10.3390/polym12123035. short: J.L. Storck, M. Dotter, S. Adabra, M. Surjawidjaja, B. Brockhagen, T. Grothe, Polymers 12 (2020). date_created: 2021-05-31T18:59:14Z date_updated: 2023-05-12T10:30:04Z doi: 10.3390/polym12123035 intvolume: ' 12' issue: '12' language: - iso: eng publication: Polymers publication_identifier: eissn: - 2073-4360 publication_status: published publisher: MDPI AG status: public title: Long-Term Stability Improvement of Non-Toxic Dye-Sensitized Solar Cells via Poly(ethylene oxide) Gel Electrolytes for Future Textile-Based Solar Cells tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: '216459' volume: 12 year: '2020' ... --- _id: '680' abstract: - lang: eng text: Polyacrylonitrile (PAN) belongs to the group of polymers that are often used for electrospinning, as it can be applied as a pre-cursor for carbon nanofibers and is spinnable from the low-toxic solvent dimethyl sulfoxide (DMSO). While the influence of different spinning parameters on fibre morphology and mass per unit area was investigated in a previous study, here we report on the impact of the spinning solution, using DMSO as a solvent and wire-based (needleless) electrospinning. Our results show that a broad range of solid contents can be applied, providing the opportunity to tailor the fibre diameter distribution or to optimize the areal weight of the nanofibrous mat by changing this parameter, while the chemical composition of the fibres remains identical. article_type: original author: - first_name: Timo full_name: Grothe, Timo id: '221330' last_name: Grothe orcid: 0000-0002-9099-4277 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94763664 - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-6841-8791/work/95037494 - first_name: Marius full_name: Dotter, Marius id: '242889' last_name: Dotter orcid: 0000-0001-8398-1809 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0001-8398-1809/work/95141265 - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94763666 citation: alphadin: 'Grothe, Timo ; Storck, Jan Lukas ; Dotter, Marius ; Ehrmann, Andrea: Impact of solid content in the electrospinning solution on the physical and chemical properties of polyacrylonitrile (PAN) nanofibrous mats. In: Tekstilec Bd. 63 (2020), Nr. 3, S. 225–232' ama: Grothe T, Storck JL, Dotter M, Ehrmann A. Impact of solid content in the electrospinning solution on the physical and chemical properties of polyacrylonitrile (PAN) nanofibrous mats. Tekstilec. 2020;63(3):225-232. doi:10.14502/Tekstilec2020.63.225-232 apa: Grothe, T., Storck, J. L., Dotter, M., & Ehrmann, A. (2020). Impact of solid content in the electrospinning solution on the physical and chemical properties of polyacrylonitrile (PAN) nanofibrous mats. Tekstilec, 63(3), 225–232. https://doi.org/10.14502/Tekstilec2020.63.225-232 bibtex: '@article{Grothe_Storck_Dotter_Ehrmann_2020, title={Impact of solid content in the electrospinning solution on the physical and chemical properties of polyacrylonitrile (PAN) nanofibrous mats}, volume={63}, DOI={10.14502/Tekstilec2020.63.225-232}, number={3}, journal={Tekstilec}, author={Grothe, Timo and Storck, Jan Lukas and Dotter, Marius and Ehrmann, Andrea}, year={2020}, pages={225–232} }' chicago: 'Grothe, Timo, Jan Lukas Storck, Marius Dotter, and Andrea Ehrmann. “Impact of Solid Content in the Electrospinning Solution on the Physical and Chemical Properties of Polyacrylonitrile (PAN) Nanofibrous Mats.” Tekstilec 63, no. 3 (2020): 225–32. https://doi.org/10.14502/Tekstilec2020.63.225-232.' ieee: T. Grothe, J. L. Storck, M. Dotter, and A. Ehrmann, “Impact of solid content in the electrospinning solution on the physical and chemical properties of polyacrylonitrile (PAN) nanofibrous mats,” Tekstilec, vol. 63, no. 3, pp. 225–232, 2020. mla: Grothe, Timo, et al. “Impact of Solid Content in the Electrospinning Solution on the Physical and Chemical Properties of Polyacrylonitrile (PAN) Nanofibrous Mats.” Tekstilec, vol. 63, no. 3, 2020, pp. 225–32, doi:10.14502/Tekstilec2020.63.225-232. short: T. Grothe, J.L. Storck, M. Dotter, A. Ehrmann, Tekstilec 63 (2020) 225–232. date_created: 2021-01-03T17:50:46Z date_updated: 2021-06-08T06:54:30Z department: - _id: '103' doi: 10.14502/Tekstilec2020.63.225-232 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2021-01-03T17:49:47Z date_updated: 2021-01-03T17:49:47Z file_id: '681' file_name: _2020_Grothe_Tekstilec63_225-232.pdf file_size: 347781 relation: main_file success: 1 file_date_updated: 2021-01-03T17:49:47Z has_accepted_license: '1' intvolume: ' 63' issue: '3' keyword: - needleless electrospinning - polyacrylonitrile (PAN) - nanofibrous mat - dimethyl sulfoxide (DMSO) - Fourier-transform infrared (FTIR) spectroscopy language: - iso: eng oa: '1' page: 225-232 publication: Tekstilec publication_status: published quality_controlled: '1' status: public title: Impact of solid content in the electrospinning solution on the physical and chemical properties of polyacrylonitrile (PAN) nanofibrous mats type: journal_article user_id: '237837' volume: 63 year: '2020' ...