[22p-C601-1~22] 12.5 Organic and hybrid solar cells

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[22p-C601-8] Outdoor Power Generation Characteristics and Degradation of Fill Factor of
Highly Efficient Perovskite Solar Cells

〇Makoto Konagai¹, Hayato Okawa¹, Ryousuke Ishikawa¹, Masatoshi Yanagida², Yasuhiro Shirai² (1.Tokyo City Univ., 2.NIMS)

Keywords:

perovskite solar cell,outdoor power generation characteristics,light-induced degradation

For the practical application of perovskite solar cells, it is essential to understand the outdoor performance and clarify the light-induced degradation characteristics. In this study, we conducted outdoor measurements of high-efficiency perovskite solar cells (glass/ITO/NiO/perovskite/C60/BCP/Ag) prepared at NIMS, and compared the indoor standard measurement results before and after outdoor exposure. One of the cells is fixed at a south-facing installation angle of 35 degrees, and the other is installed in a two-axis tracking measurement system. All cells have an initial value of FF of 0.81-0.83. Indoor measurements after about two months of outdoor exposure showed a decrease in conversion efficiency of 18% to 14%. It was found that the degradation was mainly caused by the fill factor FF.