Evaluation of Damage Coefficient for Minority-Carrier Diffusion Length of Triple-Cation Perovskite Solar Cells under 1 MeV Electron Irradiation for Space Applications

Yu Miyazawa*, Gyu Min Kim, Ayumi Ishii, Masashi Ikegami, Tsutomu Miyasaka, Yudai Suzuki, Tomoyuki Yamamoto, Takeshi Ohshima, Shusaku Kanaya, Hiroyuki Toyota, Kazuyuki Hirose

*この研究の対応する著者

研究成果: Article査読

抄録

Organo-halide perovskite solar cells (PSCs) are lightweight and low cost, and they offer high power conversion efficiencies. PSCs have proven to be useful in terrestrial applications. In addition, they are particularly attractive for space applications because they can offer a higher radiation tolerance than GaAs and Si solar cells. This paper evaluates the damage coefficient for minority-carrier diffusion lengthKLof perovskite crystals after 1 MeV electron irradiation by time-resolved photoluminescence measurements to investigate the reason for their high radiation tolerance. Results show that perovskite crystals have a lower damage coefficientKLthan that of InP crystals with a high radiation tolerance. On the other hand, first-principles calculations indicate that the displacement energy of perovskite crystals is as low as that of Si, which does not have a high radiation tolerance. The present results suggest that the annealing effect occurs for PSCs at room temperature.

本文言語English
ページ(範囲)13131-13137
ページ数7
ジャーナルJournal of Physical Chemistry C
125
24
DOI
出版ステータスPublished - 2021 6 24

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

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