色素増感型太陽電池の電気泳動法によるTiO2薄膜の作製と色素吸着

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タイトル別名
  • Preparation of TiO2 Thin Film Deposited by Electrophoresis Method and Adsorbing Dye Molecules using Electrophoresis Method
  • シキソ ゾウカンガタ タイヨウ デンチ ノ デンキ エイドウホウ ニ ヨル TiO2 ハクマク ノ サクセイ ト シキソ キュウチャク

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抄録

Anatase-type TiO2 thin films for the dye sensitized solar cell are deposited by electrophoresis method. The condition to deposit thin films of high quality is discussed. Ultra fine particles of anatase-type TiO2 thin film is deposited by the constant current or the constant voltage method. TiO2 thin films of the high quality without cracks are obtained without binder using the constant current method compared with the constant voltage method. The optimum conditions of electrophoresis for constant current method are the current density I0 from 0.03 to 0.4 mA/cm2 and the deposition time from 20 to 800 s. The film thickness can be controlled by t or I0 by specifying the concentration of colloidal solution of TiO2. The quality of TiO2 thin film increases for the small constant current and the long deposition time. The dye also can be adsorbed on the TiO2 thin films by electrophoresis method. The values of the open-circuit voltage and the short-circuit current density have increased with decreasing electrophoresis current density and increasing electrophoresis time. It has been found that electrophoresis method for adsorbing dye is effective.

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