吸电子基团修饰的三联噻吩及其对纳晶TiO2电极的敏化

doi:10.7517/j.issn.1674-0475.2008.01.1

影像科学与光化学 ›› 2008, Vol. 26 ›› Issue (1): 1-7.DOI: 10.7517/j.issn.1674-0475.2008.01.1

• 研究论文 • 下一篇

吸电子基团修饰的三联噻吩及其对纳晶TiO₂电极的敏化

张雪华, 李超, 王维波, 程学新, 王雪松, 张宝文

中国科学院, 理化技术研究所, 北京, 100080

收稿日期:2007-04-12 修回日期:2007-06-13 出版日期:2008-01-23 发布日期:2008-01-23
通讯作者: 程学新,王雪松,张宝文,电话:82543592.
基金资助:
科技部973资助项目(G2000028204)

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

ZHANG Xue-hua, LI Chao, WANG Wei-bo, CHENG Xue-xin, WANG Xue-song, ZHANG Bao-wen

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China

Received:2007-04-12 Revised:2007-06-13 Online:2008-01-23 Published:2008-01-23

摘要/Abstract

摘要： 设计合成了吸电子基团(2氰-基-2-羧基乙烯基)修饰的三联噻吩3T-CCV,研究了它的光物理和光电化学性质.密度泛函计算证明,3T-CCV受光激发可有效地发生分子内电荷分离.研究表明,在模拟太阳光AM1.5(70 mW/cm²)照射下,以3T-CCV作为光敏剂的纳晶TiO₂太阳电池的光电转换效率达到3.25%.

关键词: 染料敏化太阳电池, 光敏染料, 齐聚噻吩

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

中图分类号:

张雪华, 李超, 王维波, 程学新, 王雪松, 张宝文. 吸电子基团修饰的三联噻吩及其对纳晶TiO₂电极的敏化[J]. 影像科学与光化学, 2008, 26(1): 1-7.

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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吸电子基团修饰的三联噻吩及其对纳晶TiO₂电极的敏化

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

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