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A Study on the Fabrication of Dye-Sensitized Solar Cells Consisting of Ti Electrodes by Electron-beam Evaporation Method

전자빔 증착법에 의한 티타늄 전극 구조 염료 태양전지 제작에 관한 연구

  • Received : 2010.02.24
  • Accepted : 2010.03.16
  • Published : 2010.04.01

Abstract

In general, Dye-sensitized Solar Cells(DSCs) consist of the nanocrystalline titanium dioxide($TiO_2$) layer which is fabricated on a transparent conductive oxide(TCO) layer such as $F/SnO_2$ glass, a dye adhered to the $TiO_2$, an electrolyte solution and platinum-coated TCO. Among these components, two TCO substrates are estimated to be about 60% of the total cost of the DSCs. Currently novel TCO-less structures have been investigated in order to reduce the cost. In this study, TCO-less DSCs consisting of titanium electrodes were investigated. The titanium electrode is deposited on top of the porous $TiO_2$ layer using electron-beam evaporation process. The porosity of the titanium electrode was found out by the SEM analysis and dye adhesion. As a result, when the thickness of the titanium electrode increased, the surface resistance decreased and the conversion efficiency increased relatively.

Acknowledgement

Supported by : 부산대학교

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