Module-Level Performance Evaluation for a Smart PV System Based on Field Conditions
L. Feng, N. Amin, J. Zhang, K. Ding, F. Hamelmann, Applied Sciences 13 (2023).

Estimating Crack Effects on Electrical Characteristics of PV Modules Based on Monitoring Data and – Curves
L. Feng, J. Zhang, T.S. Kiong, K. Ding, N. Amin, F.U. Hamelmann, IEEE Journal of Photovoltaics 13 (2023) 558–570.

Modeling of Photovoltaic Array Based on Multi-Agent Deep Reinforcement Learning Using Residuals of I–V Characteristics
J. Zhang, Z. Yang, K. Ding, L. Feng, F. Hamelmann, X. Chen, Y. Liu, L. Chen, Energies 15 (2022).

Classification of Uncertain I-V Curves in PV Modules Based on Current and Voltage Evaluation
L. Feng, N. Amin, J. Zhang, K. Ding, F. Hamelmann, EU PVSEC Proceedings (2021).

Degradation Assessment of Photovoltaic Module Based on Probability Distribution Analysis of Model Parameters
J. Zhang, L. Feng, D. Kun, F. Hamelmann, X. Chen, X. Chen, L. Chen, in: 2021 IEEE 16th Conference on Industrial Electronics and Applications (ICIEA), IEEE, 2021, pp. 783–787.

Study of Sputtered Barium Strontium Titanate Films for Energy Harvesting Applications
M. Aleksandrova, T. Ivanova, S. Koch, F. Hamelmann, D. Karashanova, K. Gesheva, Advanced Materials Letters 11 (2020) 1–7.

A Novel Method to Evaluate Irradiance in PV Field without Irradiance Sensors
L. Feng, F. Hamelmann, J. Zhang, K. Ding, M. Diehl, T. Pfeil, S. Brandt, W. Friedrich, N. Amin, in: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), IEEE, 2020, pp. 2496–2501.

Study of Sputtered ZnO:GO3 Films for Energy Harvesting Applications
M. Aleksandrova, T. Ivanova, F. Hamelmann, V. Strijkova, K. Gesheva, Coatings 10 (2020).

Photovoltaic Array Power Prediction Model Based on EEMD and PSO-KELM
K. Ding, X. Chen, J. Zhang, L. Feng, F. Hamelmann, S. Weng, in: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), IEEE, 2020, pp. 2532–2537.

Model Parameter Analysis of Cracked Photovoltaic Module under Outdoor Conditions
J. Zhang, Y. Liu, K. Ding, L. Feng, F. Hamelmann, X. Chen, in: 47th IEEE Photovoltaic Specialists Conference (PVSC), IEEE, 2020, pp. 2509–2512.

Performance Analysis of Polycrystalline Module Based on Faults Causes
L. Feng, F. Hamelmann, J. Zhang, K. Ding, S. Hempelmann, M. Diehl, T. Pfeil, S. Brandt, W. Friedrich, N. Amin, in: WIP, 2020.

Smart Monitoring System of Air Quality and Wall Humidity Accompanying an Energy Efficient Renovation Process of Apartment Buildings
G. Behrens, J. Weicht, K. Schlender, F. Fehring, R. Dreimann, M. Meese, F. Hamelmann, C. Thiel, T. Försterling, M. Wübbenhorst, in: B. Otjacques, P. Hitzelberger, S. Naumann, V. Wohlgemuth (Eds.), From Science to Society, Springer International Publishing, Cham, 2018, pp. 181–189.

Changes in temperature-coefficient of the diode model caused by light-induced degradation of a-Si/;cc-Si solar cells
J. Weicht, F. Hamelmann, G. Behrens, in: 2016.

Light-Induced Degradation of Thin Film Silicon Solar Cells
F. Hamelmann, J.A. Weicht, G. Behrens, Journal of Physics: Conference Series 682 (2016).

Simulation of light-induced degradation of ;cc-Si in a-Si/;cc-Si tandem solar cells by the diode equivalent circuit
J.A. Weicht, F. Hamelmann, G. Behrens, Journal of Physics: Conference Series 682 (2016).

Performance characterization of thin-film-silicon based solar modules under clouded and clear sky conditions in comparison to crystalline silicon modules
J. Weicht, R. Rasch, G. Behrens, F. Hamelmann, Electronic Materials Letters 12 (2016) 468–471.

Thin film zinc oxide deposited by CVD and PVD
F. Hamelmann, Journal of Physics: Conference Series 764 (2016).

Automated Thermal Imaging for Fault Detection on PV-Systems
R. Rasch, G. Behrens, F. Hamelmann, S. Hantelmann, R. Dreimann, J.A. Weicht, in: WIP, 2015.

Changing of the Parameters of the cthree-Diode Modeld by Light-Induced Degradation at Different Degradation Temperatures of a-Si/µc-Si Solar Cells
J.A. Weicht, R. Rasch, G. Behrens, F. Hamelmann, in: WIP, 2015.

Changing in irradiation behavior and temperature-coefficient variation caused by light-induced degradation of a-Si/;cc-Si solar cells
J.A. Weicht, F. Hamelmann, G. Behrens, in: 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), IEEE, 2015, pp. 1–4.