Dye sensitization of nanocrystalline TiO2 by perylene derivatives

被引：37

作者：

Wang, S

Li, YL ^{[1
]}

Du, CM

Shi, ZQ

Xiao, SX

Zhu, DB

Gao, EQ

Cai, SM

机构：

[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

SYNTHETIC METALS | 2002年 / 128卷 / 03期

基金：

中国国家自然科学基金;

关键词：

dye sensitization; nanocrystalline TiO2; perylene derivatives;

D O I：

10.1016/S0379-6779(02)00007-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New sensitizing dye-semiconductor system comprised of 3,4,9,10-perylene tetracarboxylic acid (PTCA) or perylene 3,4-dicarboxylic-9,10-(n-butylamine) carboximide (PNDCA) on titanium dioxide (TiO2) had been prepared and characterized. Good energy conversion efficiency was obtained. The film of PTCA on TiO2 yielded an incident photo-to-current efficiency (IPCE) of approximately 40% in the wavelength region of 440 to 530 rim, while that for PNDCA was approximately 14% at the wavelength region from 460 to 5 10 nm. Further studies concentrated on the doping of this system with bromine (Br-2). The results indicated that the sensitizing wavelength region was red shifted, which was advantageous for solar light harvesting. Furthermore, the doped films gave lower quantum conversion efficiency than the non-doped films. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：299 / 304

页数：6

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