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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Effect of Transparency of CNT counter electrodes on the Efficiency of DSSCs

  • Lee, Won-Jae (Electric & Magnetic Devices Research Group, Korea Electrotechnology Research Institute) ;
  • Ramasamy, Easwaramoorthi (Electric & Magnetic Devices Research Group, Korea Electrotechnology Research Institute) ;
  • Lee, Dong-Yun (Electric & Magnetic Devices Research Group, Korea Electrotechnology Research Institute) ;
  • Song, Jae-Sung (Electric & Magnetic Devices Research Group, Korea Electrotechnology Research Institute)
  • Published : 2005.07.07
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Abstract

Carbon Nanotubes (CNT) on flexible indium tin oxide (ITO) PET films were prepared for dye-sensitized solar cell (DSSC). These CNTs were prepared by spray coating method for various amount of light transparency. Also, Pt counter electrode was prepared by electro deposition method. All $TiO_2$ electrodes were deposited on ITO-PET films by spray coating method. Micro structural images show that CNT counter electrodes prepared by spray-coating have more dense structure with increasing spraying time (0 to 60 seconds). DSSC consisting of $TiO_2$ electrode and CNT counter electrode was fabricated with various amount of light absorption. DSSC have higher light energy conversion efficiency with increasing the thickness of CNT counter electrode. CNT counter electrode is at least compatible to that of CNT counter electrode.

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