Electron-Withdrawing Group Modified Terthiophene and Its Sensitization on Nanocrystalline TiO2 Electrodes

doi:10.7517/j.issn.1674-0475.2008.01.1

Abstract

Abstract: An electron-withdrawing group,2-cyano-2-carboxyl-vinyl,was attached onto the 5 position of 2,2′:5′,2″-terthiophene and the photophysical and the photoelectrochemical properties of the resultant compound,3T-CCV,was studied.Density functional theory (DFT) calculation confirms the efficient intramolecular charge separation of 3T-CCV upon excitation.Under irradiation of simulated sun light (AM1.5,70 mW·cm^-2),3T-CCV based dye-sensitized solar cell presented an overall photoelectric conversion efficiency of 3.25%.

Key words: dye-sensitized solar cell, photosensitizer oligothiophene

CLC Number:

ZHANG Xue-hua, LI Chao, WANG Wei-bo, CHENG Xue-xin, WANG Xue-song, ZHANG Bao-wen. Electron-Withdrawing Group Modified Terthiophene and Its Sensitization on Nanocrystalline TiO₂ Electrodes[J]. Imaging Science and Photochemistry, 2008, 26(1): 1-7.

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Electron-Withdrawing Group Modified Terthiophene and Its Sensitization on Nanocrystalline TiO₂ Electrodes

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