Development of low cost and high efficiency silicon thin-film and a-Si:H/c-Si hetero-junction solar cells using low temperature silicon thin-films

고품질 실리콘 박막을 이용한 저가 고효율 실리콘 박막 및 a-Si:H/c-Si 이종접합 태양전지 개발

  • 이정철 (한국에너지기술연구원, 태양전지연구센터) ;
  • 임충현 (한국에너지기술연구원, 태양전지연구센터) ;
  • 안세진 (한국에너지기술연구원, 태양전지연구센터) ;
  • 윤재호 (한국에너지기술연구원, 태양전지연구센터) ;
  • 김석기 (한국에너지기술연구원, 태양전지연구센터) ;
  • 김동섭 (세종대학교) ;
  • 양수미 (LG실트론, R&D Center) ;
  • 강희복 (LG실트론, R&D Center) ;
  • 이보영 (LG실트론, R&D Center) ;
  • 이준신 (성균관대학교 정보통신공학부) ;
  • 송진수 (한국에너지기술연구원, 태양전지연구센터) ;
  • 윤경훈 (한국에너지기술연구원, 태양전지연구센터)
  • Published : 2005.06.01

Abstract

In this paper, silicon thin-film solar cells(Si- TFSC) and a-Si/c-Si heterojunction solar cells(HJ-cell) are investigated. The Si-TFSC was prepared on glass substrate by depositing $1-3{\mu}m$ thin-film silicons by glow discharge method. The $a-Si:H/{\mu}c-Si:H$ tandem solar cells on textured ZnO:A1 TCO (transparent conducting oxide) showed improved Jsc in top and bottom cells than that on $SnO_2:F$ TCO. This enhancement of jsc resulted from improved light trapping effect by front textured ZnO:A1. The a-Si/c-Si HJ-cells with simple structure without high efficiency features are suffering from low Voc and Jsc. The improvement of front nip and back interface properties by adopting high quality silicon-films at low temperature should be done both for increasing device performances and production cost.

Keywords