First Principles Calculation of Electrical and Optical Properties of Cu₃AsO₄ : Promising Thin-Film Solar Cell Absorber from Nonferrous Metal Manufacturing By-Products

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  • Suzuki Issei
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Kawanishi Sakiko
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Ohashi Naoki
    National Institute for Materials Science (NIMS)
  • Gomi Aiga
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Kano Junya
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Watanabe Hiroto
    Sumitomo Metal Mining Co., Ltd.
  • Asano Satoshi
    Sumitomo Metal Mining Co., Ltd.
  • Omata Takahisa
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

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タイトル別名
  • First Principles Calculation of Electrical and Optical Properties of Cu<sub>3</sub>AsO<sub>4</sub>: Promising Thin-Film Solar Cell Absorber from Nonferrous Metal Manufacturing By-Products

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<p>The stability and electronic structure of enargite-type Cu3AsO4 were investigated through first principles calculations. Although its synthesis has not been reported to date, the calculations indicate the possibility of synthesis of enargite-type Cu3AsO4. Enargite-type Cu3AsO4 is expected to possess a 1–1.2-eV band gap and a large optical absorption coefficient comparable to those of absorber materials for thin-film solar cells such as CdTe and GaAs. Enargite-type Cu3AsO4 is also expected to exhibit both p-type and n-type conduction by appropriate impurity doping. This property will enable use of this material in a p–n homojunction. In contrast, enargite-type Cu3AsS4 exhibits p-type conduction whereas n-type conduction is not expected. The results of this study indicate that enargite-type Cu3AsO4 is very promising as an absorber material for thin-film solar cells.</p>

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 63 (1), 73-81, 2022-01-01

    公益社団法人 日本金属学会

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