| 吸电子基团修饰的三联噻吩及其对纳晶TiO2电极的敏化 |
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| 引用本文： | 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. DOI: 10.7517/j.issn.1674-0475.2008.01.1 |
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| 作者姓名： | 张雪华 李超 王维波 程学新 王雪松 张宝文 |
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| 作者单位： | 中国科学院,理化技术研究所,北京,100080;中国科学院,理化技术研究所,北京,100080;中国科学院,理化技术研究所,北京,100080;中国科学院,理化技术研究所,北京,100080;中国科学院,理化技术研究所,北京,100080;中国科学院,理化技术研究所,北京,100080 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 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%.
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| 关 键 词： | 染料敏化太阳电池 光敏染料 齐聚噻吩 |
| 收稿时间： | 2007-04-12 |
Electron-Withdrawing Group Modified Terthiophene and Its Sensitization on Nanocrystalline TiO2 Electrodes |
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| 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. DOI: 10.7517/j.issn.1674-0475.2008.01.1 |
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| Authors: | ZHANG Xue-hua LI Chao WANG Wei-bo CHENG Xue-xin WANG Xue-song ZHANG Bao-wen |
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| Affiliation: | Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China |
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| 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%. |
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| Keywords: | dye-sensitized solar cell photosensitizer oligothiophene |
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