한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제30권3호
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  • Pages.192-197
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  • 2017
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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이종접합 실리콘 태양전지 적용을 위한 선택적 전하접합 층으로의 전이금속산화물에 관한 연구

A Study on the Selective Hole Carrier Extraction Layer for Application of Amorphous/crystalline Silicon Heterojunction Solar Cell

  • 김용준 (성균관대학교 정보통신대학) ;
  • 김선보 (성균관대학교 에너지과학과) ;
  • 김영국 (성균관대학교 정보통신대학) ;
  • 조영현 (성균관대학교 정보통신대학) ;
  • 박창균 (주성엔지니어링 Solar R&D Division) ;
  • 이준신 (성균관대학교 정보통신대학)
  • Kim, Yongjun (College of Infomation and Communication Engineering, Sungkyunkwan University) ;
  • Kim, Sunbo (Department of Energy Science, Sungkyunkwan University) ;
  • Kim, Youngkuk (College of Infomation and Communication Engineering, Sungkyunkwan University) ;
  • Cho, Young Hyun (College of Infomation and Communication Engineering, Sungkyunkwan University) ;
  • Park, Chang-kyun (Solar R&D division, JUSUNG Engineering Co. Ltd.) ;
  • Yi, Junsin (College of Infomation and Communication Engineering, Sungkyunkwan University)
  • 투고 : 2017.02.06
  • 심사 : 2017.02.10
  • 발행 : 2017.03.01
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초록

Hydrogenated Amorphous Silicon (a-Si:H) is used as an emitter layer in HIT (heterojunction with Intrinsic Thin layer) solar cells. Its low band gap and low optical properties (low transmittance and high absorption) cause parasitic absorption on the front side of a solar cell that significantly reduces the solar cell blue response. To overcome this, research on CSC (carrier Selective Contacts) is being actively carried out to reduce carrier recombination and improve carrier transportation as a means to approach the theoretical efficiency of silicon solar cells. Among CSC materials, molybdenum oxide ($MoO_x$) is most commonly used for the hole transport layer (HTL) of a solar cell due to its high work function and wide band gap. This paper analyzes the electrical and optical properties of $MoO_x$ thin films for use in the HTL of HIT solar cells. The optical properties of $MoO_x$ show better performance than a-Si:H and ${\mu}c-SiO_x:H$.

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