Transactions on Electrical and Electronic Materials

  • 제6권5호
  • /
  • Pages.238-242
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  • 2005
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  • 1229-7607(pISSN)
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  • 2092-7592(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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Characteristics of Nano-crystalline TiO2 Dye-sensitized Solar Cells having Counter Electrodes with Different Preparing Process

  • Lee, Dong-Yoon (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Koo, Bo-Kun (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Kim, Hyun-Ju (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Lee, Won-Jae (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Song, Jae-Sung (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Kim, Hee-Jae (Lab. Of Laser and Sensor application, Pusan National University)
  • 발행 : 2005.10.01
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초록

The Pt counter electrode of a dye-sensitized solar cell (DSSC) plays a role in helping redox reaction of iodine ions in electrolyte, also, transferring electrons into electrolyte. In this case, it is expected that characteristics of Pt electrodes strongly depend on fabrication process and its surface condition. In this study, Pt electrodes were prepared by a electro-deposition and a RF magnetron sputtering. Electrochemical behavior of Pt electrodes was compared using cyclic-voltammetry and impedance spectroscopy. Surface morphology of Pt electrodes was investigated by FE-SEM and AFM. I-V characteristics of DSSC were measured and discussed in association with the surface properties of counter electrode. As a result, electrochemical properties of electro-deposited Pt electrode were superior to that of sputtered Pt electrode. This is likely that enlarged area of surface in electro-deposited Pt electrode in comparison with the case of sputtered Pt electrode playa role in enhancing such electrochemical properties.

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참고문헌

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