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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Improving Efficiency of Low Cost EFG Ribbon Silicon Solar Cells by Using a SOD Method

SOD방법을 이용한 저가 EFG 리본 실리콘 태양전지의 효율 향상에 관한 연구

  • Kim, Byeong-Guk (Department of Electronic Engineering, Chungju National University) ;
  • Lim, Jong-Youb (Department of Electronic Engineering, Chungju National University) ;
  • Chu, Hao (Department of Electronic Engineering, Chungju National University) ;
  • Oh, Byoung-Jin (Department of Electronic Engineering, Chungju National University) ;
  • Park, Jae-Hwan (Department of Electronic Engineering, Chungju National University) ;
  • Lee, Jin-Seok (Energy Conversion and Storage Research Center, Korea Institute of Energy Research) ;
  • Jang, Bo-Yun (Energy Conversion and Storage Research Center, Korea Institute of Energy Research) ;
  • An, Young-Soo (Energy Conversion and Storage Research Center, Korea Institute of Energy Research) ;
  • Lim, Dong-Gun (Department of Electronic Engineering, Chungju National University)
  • 김병국 (충주대학교 전자공학과) ;
  • 임종엽 (충주대학교 전자공학과) ;
  • 저호 (충주대학교 전자공학과) ;
  • 오병진 (충주대학교 전자공학과) ;
  • 박재환 (충주대학교 전자공학과) ;
  • 이진석 (한국에너지기술연구원) ;
  • 장보윤 (한국에너지기술연구원) ;
  • 안영수 (한국에너지기술연구원) ;
  • 임동건 (충주대학교 전자공학과)
  • Received : 2010.10.12
  • Accepted : 2011.01.28
  • Published : 2011.03.01

Abstract

The high cost of crystalline silicon solar cells has been considered as one of the major obstacles to their terrestrial applications. Spin on doping (SOD) is presented as a useful process for the manufacturing of low cost solar cells. Phosphorus (P509) was used as an n-type emitters of solar cells. N-type emitters were formed on p-type EFG ribbon Si wafers by using a SOD at different spin speed (1,000~4,000 rpm), diffusion temperatures ($800^{\circ}C{\sim}950^{\circ}C$), and diffusion time (5~30 min) in $N_2+O_2$ atmosphere. With optimum condition, we were able to achieve cell efficiency of 14.1%.

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Acknowledgement

Grant : 저가 리본 태양전지 기술개발

Supported by : 한국에너지기술연구원

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