Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The Effect of $TiO_2$ Thickness on the Performance of Dye-Sensitized Solar Cells

$TiO_2$ 두께에 따른 염료감응형 태양전지의 효율 변화

  • Kim, Dae-Hyun (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Park, Mi-Ju (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Lee, Sung-Uk (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Choi, Won-Seok (Hanbat National University) ;
  • Hong, Byung-You (Center for Advanced Plasma Surface Technology(CAPST), Sungkyunkwan University)
  • 김대현 (성균관대학교 정보통신공학부) ;
  • 박미주 (성균관대학교 정보통신공학부) ;
  • 이성욱 (성균관대학교 정보통신공학부) ;
  • 최원석 (한밭대학교) ;
  • 홍병유 (플라즈마응용 표면기술 연구센터)
  • Published : 2007.11.01
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Abstract

Dye-sensitized solar cell using conversion of solar energy to electrical energy appeared that which solves a environmental matter. The dye-sensitized solar cell uses nano-crystalline oxide semiconductor for absorbing dye. The $TiO_2$ is used most plentifully. The efficiency of the dye-sensitized solar cell changes consequently in the particle size, morphology, crystallization and surface state of the $TiO_2$. In this paper, we report The effect of titania$(TiO_2)$ thickness on the performance of dye-sensitized solar cells. Using doctor blade method, It produced the thickness of the $TiO_2$ with $7\;{\mu}m,\;10\;{\mu}m,\;13\;{\mu}m$. The efficiency was the best from $10{\mu}m$. It had relatively low efficiency on the thickness from $7\;{\mu}m\;to\;13\;{\mu}m$. The reason why it presents low efficiency on $7\;{\mu}m$ thickness is that excited electrons can not be delivered enough due to thin thickness of $7\;{\mu}m\;TiO_2$. And The reason why it presents low efficiency on $13\;{\mu}m$ thickness is that thick $13\;{\mu}m\;TiO_2$ can not penetrate the sunlight enough.

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