論文

査読有り 本文へのリンクあり
2019年

Pb-free Sn perovskite solar cells doped with samarium iodide

Chemistry Letters
  • Kengo Hamada
  • ,
  • Daisuke Hirotani
  • ,
  • Muhammad Akmal Kamarudin
  • ,
  • Kohei Nishimura
  • ,
  • Qing Shen
  • ,
  • Satoshi Iikubo
  • ,
  • Takashi Minemoto
  • ,
  • Kenji Yoshino
  • ,
  • Taro Toyoda
  • ,
  • Shuzi Hayase

48
8
開始ページ
836
終了ページ
839
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1246/cl.190163

© 2019 The Chemical Society of Japan. The efficiency of Sn-perovskite solar (Sn-PVK) cells was enhanced by adding 1% Samarium iodide (SmI2). Increase in Jsc and FF is associated with the enhancement of efficiency and and explained by lower series resistance. SmI2 is known as a strong reducing agent and is oxidized to Sm3+ by reducing a substrate. By adding 1 and 5% SmI2, the carrier concentration of Sn-perovskite layer due to the presence of Sn4+ was decreased from 4.8 © 1022/cm3 to 1.2 © 1019/cm3 and 6.1 © 1018/cm3 respectively, because of the suppression of the oxidation from Sn2+ to Sn4+ by the strong reducing properties of SmI2. The low charge carrier concentration is also associated with the enhanced solar cell efficiency.

リンク情報
DOI
https://doi.org/10.1246/cl.190163
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069824359&origin=inward 本文へのリンクあり
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ID情報
  • DOI : 10.1246/cl.190163
  • ISSN : 0366-7022
  • eISSN : 1348-0715
  • SCOPUS ID : 85069824359

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