A Study on the Improvement of the Efficiency of Dye-sensitized Solar Cell using the Laser Scribing and the Grid Electrode

레이저 식각 및 그리드 전극을 적용한 염료감응형 태양전지의 효율 향상 연구

  • 서현웅 (부산대학 전자전기공학과) ;
  • 손민규 (부산대학 전자전기공학과) ;
  • 이경준 (부산대학 전자전기공학과) ;
  • 김정훈 (부산대학 전자전기공학과) ;
  • 홍지태 (부산대학 전자전기공학과) ;
  • 김희제 (부산대학 전자전기공학과)
  • Published : 2008.10.01

Abstract

Dye-sensitized solar cell (DSC) based on some advantages such as transparency, cheap materials and anti-sensibility for an anlge of incidence has been expected to capture most of solar cell market in the near future. To practical use of DSC, researches on high efficiency as well as upscaling are necessary. In this study, we tried to insert the grid electrode in DSC and scribe transparent conducting oxide (TCO) using Nd:YAG laser. The grid electrode makes the electron movement improved and diffusional movement minimized. Consequently, the efficiency of DSC was increased by reducing electron loss and the surface resistance of TCO. The grid electrode was made using Ag target by radio frequency sputtering. And the scribed surface was confirmed by taking a scanning electron microscopy photos. As the result, grid cell had improved photocurrent and fill factor as compared with the conventional cell. And the efficiency was increased about 1% by enhanced photocurrent and fill factor.

Keywords

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