Project Topic: Electroluminescence characterization of degraded photovoltaic modules.
The objective of this work is to analyze the degradation effects in modules. In present photovoltaic industries the concern pertaining defects and degradation as the modules bear hash environmental condition at the outdoors, is a serious one. This study concerning simulated climatic conditions to analyze appearance and evolution of defects in PV modules with the help of electroluminescence (EL), dark lock-in thermography (DLIT) and I-V analysis can be helpful to understand performance and reliability of modules and predicting module lifetime.

• S. Roy, S. Kumar, R. Meena and R. Gupta, "Investigation on Shunt Severity in PV modules by Electroluminescence Imaging and Lock-in Thermography", 36th European Photovoltaic Solar Energy Conference and Exhibition, Marseille, France, September 2019
• S. Kumar and R. Gupta, "Effects of Solder Configurations on Finger Breakages in Photovolatic Modules under Thermal Cycling Conditions", 36th European Photovoltaic Solar Energy Conference and Exhibition, Marseille, France, September 2019
• S. Roy, R. Gupta, "Quantitative Estimation of Shunt Resistance in Crystalline Silicon Photovoltaic Modules by Electroluminescence Imaging", IEEE Journal of Photovoltaics, DOI:10.1109/JPHOTOV.2019.2930402, 2019
• S. Roy, R. Gupta, "Non-destructive approach for severity investigation of shunts in crystalline silicon photovoltaic modules by combination of electroluminescence imaging and lock-in thermography ", Measurement Science and Technology, vol. 30, 044009, 2019
• S. Roy, S. Kumar, R. Gupta, "Investigation and analysis of finger breakages in commercial crystalline silicon photovoltaic modules under standard thermal cycling test ", Engineering Failure Analysis, vol. 101, pp. 309-319, 2019
• A. Sinha, M. Bliss, X. Wu, S. Roy, R. Gottschalg, R. Gupta, "Cross-Characterization for Imaging Parasitic Resistive Losses in Thin-film Photovoltaic Modules", Journal of Imaging , Vol. 2(3), pp. 1-19, 2016
• A. Sinha, S. Roy, S. Kumar and R. Gupta, "Investigation of Degradation in Photovoltaic Modules by Infrared and Electroluminescence Imaging", Advances in Optical Science and Engineering, Springer proceedings of the 3rd International Conference OPTRONIX, vol. 194, Kolkata, India, 2016
• S. Roy, P. Somasundaran, R. Gupta, "Estimation of shunt resistance by Electroluminescence imaging", 29th European Photovoltaic Solar Energy Conference, Proc. pp. 1224-1227, Amsterdam, Netherlands, 2014