A noise model for the evaluation of defect states in solar cells

作者：Landi G^*; Barone C^*; Mauro C; Neitzert H C; Pagano S

来源：Scientific Reports, 2016, 6(1): 29685.

DOI：10.1038/srep29685

A theoretical model, combining trapping/detrapping and recombination mechanisms, is formulated to explain the origin of random current fluctuations in silicon-based solar cells. In this framework, the comparison between dark and photo-induced noise allows the determination of important electronic parameters of the defect states. A detailed analysis of the electric noise, at different temperatures and for different illumination levels, is reported for crystalline silicon-based solar cells, in the pristine form and after artificial degradation with high energy protons. The evolution of the dominating defect properties is studied through noise spectroscopy.

• 出版日期2016-7-14