Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Characteristics of VOx Thin Film, NiOx Thin Film, and CuIx Thin Film for Carrier Selective Contacts Solar Cells

전하선택접촉 태양전지 적용을 위한 VOx 박막, NiOx 박막, CuIx 박막의 특성 연구

  • Kiseok Jeon (Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology) ;
  • Minseob Kim (Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology) ;
  • Eunbi Lee (Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology) ;
  • Jinho Shin (Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology) ;
  • Sangwoo Lim (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Chaehwan Jeong (Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology)
  • 전기석 (그린에너지나노연구그룹, 한국생산기술연구원) ;
  • 김민섭 (그린에너지나노연구그룹, 한국생산기술연구원) ;
  • 이은비 (그린에너지나노연구그룹, 한국생산기술연구원) ;
  • 신진호 (그린에너지나노연구그룹, 한국생산기술연구원) ;
  • 임상우 (화공생명공학과, 연세대학교) ;
  • 정채환 (그린에너지나노연구그룹, 한국생산기술연구원)
  • Received : 2023.03.09
  • Accepted : 2023.05.02
  • Published : 2023.06.30
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Abstract

Carrier-selective contacts (CSCs) solar cells are considerably attractive on highly efficient crystalline silicon heterojunction (SHJ) solar cells due to their advantages of high thermal tolerance and the simple fabrication process. CSCs solar cells require a hole selective contact (HSC) layer that selectively collects only holes. In order to selectively collect holes, it must have a work function characteristic of 5.0 eV or more when contacted with n-type Si. The VOx, NiOx, and CuIx thin films were fabricated and analyzed respectively to confirm their potential usage as a hole-selective contact (HSC) layer. All thin films showed characteristics of band-gap engergy > 3.0 eV, work function > 5.0 eV and minority carrier lifetime > 1.5 ms.

Keywords

Acknowledgement

본 연구는 2021년도 산업통산자원부의 재원으로 한국에너지기술평가원(KETEP)의 지원 과제인 "대면적 결정질/박막 실리콘 이종접합(HJT) 태양광 모듈핵심소재. 장비. 공정 기술 개발"(No. 20213030010240)을 통해 수행한 과제입니다

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