[23p-22C-1~12] 12.5 Organic and hybrid solar cells

1:00 PM - 1:15 PM JST(4:00 AM - 4:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[23p-22C-1] Bis(pyrrolidino)fullerenes as Electron Transport Materials for Tin Perovskite Solar Cells

〇Tomoya Nakamura¹, Takabumi Nagai², Yuki Miyake¹, Takumi Yamada¹, Yoshihiko Kanemitsu¹, Minh Anh Truong¹, Richard Murdey¹, Atsushi Wakamiya¹ (1.Institute for Chemical Research, Kyoto Univ., 2.HARVES Co., Ltd.)

Keywords:

tin perovskite solar cells,electron transport materials,fullerenes

Bis(pyrrolidino)fullerene derivatives were synthesized and evaluated as electron transport materials in tin halide perovskite solar cells. The open-circuit voltage was improved due to the shallower LUMO energy level of the compound, leading to the power conversion efficiency of as high as 12.3%. In this presentation, the relationships between energy levels and optical properties of the materials, and the solar cell performance will be discussed in detail.