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Effect of Performance in Dye-sensitized Solar Cells by PEG Contents

PEG 함량변화가 염료감응형 태양전지의 효율에 미치는 영향

  • 백형렬 (전남대학교 전기공학과) ;
  • 한정희 (전남대학교 전기공학과) ;
  • 이호 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과) ;
  • 박경희 (전남대학교 전기공학과)
  • Published : 2008.02.01

Abstract

A solar cell based on dye-sensitized photoelectric conversion was studied by investigating the effects of the amount of polyethylene glycol(PEG), added to the $TiO_2$ paste, on surface morphology of the $TiO_2$ films and on the solar cell performance. Energy conversion efficiency was found to increase with PEG addition up to 20 % by weight of $TiO_2$ and then decrease with further addition due to the aggregation of $TiO_2$ nano particles in the $TiO_2$ film. In this study, the best result of dye-sensitized solar cell was the short circuit current(Isc) of $22.6mAcm^{-2}$, the open circuit voltage (Voc) of 0.73 V, the fill factor (ff) of 0.55 and the overall energy conversion efficiency (${\eta}$) of 9.1 % under illumination with AM 1.5 simulated sunlight.

Keywords

References

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