Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Development of Inorganic Metal Oxide based Hole-Transporting Layer for High Efficiency Perovskite Solar Cell

고효율 페로브스카이트 태양전지용 무기 금속 산화물 기반 정공수송층의 개발

  • Lee, Haram (Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Mai, Cuc Thi Kim (Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Jang, Yoon Hee (Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Lee, Doh-Kwon (Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST))
  • 이하람 (광전하이브리드연구센터, 한국과학기술연구원) ;
  • 킴 마이 (광전하이브리드연구센터, 한국과학기술연구원) ;
  • 장윤희 (광전하이브리드연구센터, 한국과학기술연구원) ;
  • 이도권 (광전하이브리드연구센터, 한국과학기술연구원)
  • Received : 2020.05.10
  • Accepted : 2020.06.02
  • Published : 2020.06.30
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Abstract

In perovskite solar cells with planar heterojunction configuration, selection of proper charge-transporting layers is very important to achieve stable and efficient device. Here, we developed solution processible Cu doped NiOx (Cu:NiOx) thin film as a hole-transporting layer (HTL) in p-i-n structured methylammonium lead trihalide (MAPbI3) perovskite solar cell. The transmittance and thickness of NiOx HTL is optimized by control the spin-coating rate and Cu is additionally doped to improve the surface morphology of undoped NiOx thin film and hole-extraction properties. Consequently, a perovskite solar cell containing Cu:NiOx HTL with optimal doping ratio of Cu exhibits a power conversion efficiency of 14.6%.

Keywords

References

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