Presentation Information
[8p-E201-14]Outdoor durability evaluation of perovskite/Si tandem solar cells
〇Makoto Konagai1, Ryousuke Ishikawa1, Hanae Yamazaki2, Kazuhiro Gotoh2, Atsushi Masuda2, Miyuki Shiokawa3, Takeshi Gotanda3 (1.Tokyo City Univ., 2.Niigata Univ., 3.Toshiba)
Keywords:
perovskite solar cell,degradation characteristics,perovskite/Si tandem solar cell
The samples were either in a two-axis tracking measurement system or fixed at a south-facing tilt angle of 35 degrees. A cell set at 35 degrees with an initial outdoor conversion efficiency of 22.5% degraded to 20% after six months. On the other hand, the degradation was more pronounced in the two-axis tracking system than in the 35-degree set cell, but this cannot be explained solely by the difference in accumulated solar radiation. The higher junction temperature of the two-axis tracking system cell compared to the 35-degree set cell is likely a contributing factor. Furthermore, hysteresis in the IV curve tracing will be considered.