Fabrication of Flexible CIGS thin film solar cells using Polyimide substrate

Polyimide 기판을 이용한 Flexible CIGS 박막 태양전지 제조

  • 정승철 (한국에너지기술연구원 태양광연구단, 충남대학교) ;
  • 안세진 (한국에너지기술연구원 태양광연구단) ;
  • 윤재호 (한국에너지기술연구원 태양광연구단) ;
  • 곽지혜 (한국에너지기술연구원 태양광연구단) ;
  • 김도진 (충남대학교 재료공학과) ;
  • 윤경훈 (한국에너지기술연구원 태양광연구단)
  • Published : 2009.06.25

Abstract

In this study, we fabricated the $Cu(In,Ga)Se_2$ (CIGS) thin-film solar cells by using a polyimide substrate. The CIGS thin-film was deposited on Mo coated polyimide substrate by a 3-stage co-evaporation technique. Because the polyimide shows thermal transformation at about $400^{\circ}C$, the substrate temperature of co-evaporation process was set to below $400^{\circ}C$. Corresponding solar cell showed a conversion efficiency of 7.08 % with $V_{OC}$ of 0.58 V, $J_{SC}$ of 24.99 $mA/cm^2$ and FF of 0.49.

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