Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the Efficiency of Dye Sensitized Solar Cell Based on the Volume of Binder Addition

바인더 함량에 따른 염료감응 태양전지의 효율에 관한 연구

  • Ki, Hyun-Chul (Photonics Fusion System Research Center, Korea Photonics Technology Institute) ;
  • Jung, Haeng-Yun (Photonics Fusion System Research Center, Korea Photonics Technology Institute) ;
  • Gu, Hal-Bon (Department of Electrical Engineering, Chonnam National University)
  • 기현철 (한국광기술원 광융합시스템연구센터) ;
  • 정행윤 (한국광기술원 광융합시스템연구센터) ;
  • 구할본 (전남대학교 전기공학과)
  • Received : 2013.08.02
  • Accepted : 2013.11.05
  • Published : 2013.12.01
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Abstract

In this study, we have fabricated the dye sensitized solar cell (DSSC) composed by a transparent conductive oxide (TCO), a nanocrystalline semiconductor film usually $TiO_2$, a sensitizer adsorbed on the surface of the semiconductor, an electrolyte containing a redox mediator and a counter electrode. The $TiO_2$ nanopowder was prepared by sol-gel methode. The HCl (hydrochloric acid) and TBAOH (Tetrabutyl amonium hydroxide) was added for improving the catalyst and distributed properties of $TiO_2$ nanopowder. Ammonium hydroixde was added in order to control the morphology and size of $TiO_2$ nano crystal. A $TiO_2$ paste for working electrode was prepared with the addition of HPC (hydroxypropyl cellulos) used as a binder of which volume was controled as 1.3, 1.5, 1.7, and 2.0%. The measured I-V curves of assembled DSSC showed that the cell with 1.7% HPC binder had the best efficiency of 6.79%.

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