Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Perovskite Solar Cells through Application of Hole Transporting Layers based on Vacuum Thermal Evaporation

진공 열 증착 기반의 정공수송층 적용을 통한 페로브스카이트 태양전지

  • Kim, Hye Seung (Department of Materials Science and Engineering, Ulsan National Institute of Sciences and Technology (UNIST)) ;
  • Song, Myoung Hoon (Department of Materials Science and Engineering, Ulsan National Institute of Sciences and Technology (UNIST))
  • 김혜승 (신소재공학과, 울산과학기술원) ;
  • 송명훈 (신소재공학과, 울산과학기술원)
  • Received : 2022.02.09
  • Accepted : 2022.03.15
  • Published : 2022.03.31
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Abstract

In this study, we investigate organic-inorganic halide perovskite solar cells with a vacuum thermal evaporated hole transporting layer (NPB/MoO3-x). By replacing solution process based Spiro-MeOTAD with vacuum thermal evaporation based NPB/MoO3-x, a thin hole transporting layer was implemented. In addition, parasitic absorption that may occur during the doping process was eliminated by excluding solution process doping. In a solar cell with a thin vacuum thermal evaporated hole transporting layer, the short-circuit current density (Jsc) increased to 23.93 mA/cm2, resulting in the highest power converstion efficiency (PCE) at 18.76%. Considering these results, it is essential to control the thickness of hole transporting layer located at the top in solar cell configuration.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부의 재원으로 한국연구재단의 기후변화대응기술개발사업(NRF-2019M1A2A2072416)과 산업통상자원부의 재원으로 한국에너지기술평가원의 지원(20213091010010, 슈퍼 태양전지 - 실리콘 이론한계 돌파형(>35%) 이중접합 태양전지 개발)을 받아 수행된 연구임.

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