[20a-432-1~12] 12.5 Organic solar cells

[20a-432-7] Evaluation of Sn-Ge perovskite solar cells by GeI₄ doping

〇Tanaka Ryo¹, Satoshi Iikubo¹, Qing Shen², Taro Toyoda², Takashi Minemoto³, Kenji Yoshino⁴, Shuzi Hayase¹ (1.Kyushu Inst. Tech., 2.Electro-Communications Univ., 3.Ritsumeikan Univ., 4.Miyazaki Univ.)

Keywords:perovskite, tin, germanium

In recent years, Sn-based perovskite solar cells, which are said to have less environmental load than lead, have attracted attention.
However, high performance has yet to be obtained. In addition to Sn, Ge attracts attention, so Sn-Ge perovskite solar cells are being studied in our laboratory. Among them, because there is a report example using GeI 2, I have prepared the solar cell using GeI 4 and evaluated the solar cell characteristics. Based on the results, improvement of solar cell characteristics was confirmed.