Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Numerical Analysis on Thermal-Induced Degradation of n-i-p Structure Perovskite Solar Cells Using SCAPS-1D

SCAPS-1D 시뮬레이션을 이용한 n-i-p 구조 페로브스카이트 태양전지의 열적 열화 원인 분석

  • Kim, Seongtak (Functional Materials and Components R&D Group, Gangwon Division, Korea Institute of Industrial Technology) ;
  • Bae, Soohyun (Photovoltaic Research Department, Korea Institute of Energy Research) ;
  • Jeong, Younghun (Functional Materials and Components R&D Group, Gangwon Division, Korea Institute of Industrial Technology) ;
  • Han, Dong-Woon (Functional Materials and Components R&D Group, Gangwon Division, Korea Institute of Industrial Technology) ;
  • Kim, Donghwan (Department of Materials Science and Engineering, Korea University) ;
  • Mo, Chan Bin (Functional Materials and Components R&D Group, Gangwon Division, Korea Institute of Industrial Technology)
  • 김성탁 (강원본부 기능성소재부품연구그룹, 한국생산기술연구원) ;
  • 배수현 (태양광연구단, 한국에너지기술연구원) ;
  • 정영훈 (강원본부 기능성소재부품연구그룹, 한국생산기술연구원) ;
  • 한동운 (강원본부 기능성소재부품연구그룹, 한국생산기술연구원) ;
  • 김동환 (신소재공학과, 고려대학교) ;
  • 모찬빈 (강원본부 기능성소재부품연구그룹, 한국생산기술연구원)
  • Received : 2022.01.14
  • Accepted : 2022.02.21
  • Published : 2022.03.31
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Abstract

The long-term stability of PSCs against visual and UV light, moisture, electrical bias and high temperature is an important issue for commercialization. In particular, since the operation temperature of solar cell can rise above 85℃, a study on thermal stability is required. In this study, the cause of thermal-induced degradation of PSCs was investigated using the SCAPS-1D simulation tool. First, PSCs of TiO2/CH3NH3PbI3/Spiro-OMeTAD/Au structure were exposed to a constant temperature of 85℃ to observe changes in conversion efficiency and quantum efficiency. Because the EQE reduction above 500 nm was remarkable, we simulated PSCs performance as a function of lifetime, doping density of perovskite and spiro-OMeTAD. Consequently, the main cause of thermal-induced degradation is considered to be the change in the perovskite doping concentration and lifetime due to ion migration of perovskite.

Keywords

Acknowledgement

본 연구는 한국생산기술연구원 기관주요사업의 지원으로 수행되었습니다(JC-21-0021).

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