Novel Fabrication of Platinum Counter Electrode in Dye-sensitized Solar Cells Using Nano-second Pulsed Laser Sintering

  • Lee, Jin Ah (Korea Institute of Science and Technology) ;
  • Yoo, Kicheon (Korea Institute of Science and Technology) ;
  • Kim, Woong (Department of Materials Science and Engineering, Korea University) ;
  • Ko, Min Jae (Korea Institute of Science and Technology)
  • 발행 : 2013.02.18

초록

The counter electrodes in dye-sensitized solar cells (DSSCs) play roles in not only collecting electrons from external circuit but also reducing I3- to I- in electrolytes. Generally, conventional counter electrodes for DSSCs are prepared from the high temperature treatment of the H2PtCl6 precursor solution at $400^{\circ}C$ However, the more simplified fabrication process of counter electrodes is required for the commercialization of DSSCs. In this work, we developed novel fabrication process of counter electrodes using nano-second pulsed laser. DSSCs employing counter electrodes prepared by laser process showed conversion efficiency of 6.75% with short-circuit current of 12.73 mA/cm2, open-circuit voltage of 0.74 V and fill factor of 0.72. Closer investigating of photovoltaic properties will be reported.

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