Flexible dye-sensitized solar cells using ZnO coated TiO2 nanoparticles

被引：108

作者：

Kim, SS ^{[1
]}

Yum, JH ^{[1
]}

Sung, YE ^{[1
]}

机构：

[1] GIST, Dept Mat Sci & Engn, Kwangju 500712, South Korea

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2005年 / 171卷 / 03期

关键词：

flexible dye-sensitized solar cell; inherent energy barrier; ZnO layer; recombination;

D O I：

10.1016/j.jphotochem.2004.10.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A photoelectrode using ZnO coated TiO2 nanoparticles was prepared for use in flexible dye-sensitized solar cells. To provide an inherent energy barrier between the electrode and electrolyte interface, the surface of the TiO2 nanoparticles was modified by thin ZnO layer. X-ray photoelectron spectroscopy and transmission electron microscopy image confirmed the formation of ZnO with a thickness of ca. similar to 0.5 run, possible thickness for tunneling process in particle-to-particle transport of electrons, on the TiO2 surface. The overall conversion efficiency was increased from 0.71 to 1.21% under a light intensity of 20 mW/cm(2) (0.2 sun) due to the reduced recombination of photoinjected electrons without any post-treatment. (c) 2004 Elsevier B.V. All rights reserved.

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收藏

页码：269 / 273

页数：5

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