Preparation and performance of dye-sensitized solar cells based on ZnO-modified TiO2 electrodes

被引：43

作者：

Li, Sheng-jun ^{[1
,2
]}

Lin, Yuan ^{[2
]}

Tan, Wei-wei ^{[2
]}

Zhang, Jing-bo ^{[2
]}

Zhou, Xiao-wen ^{[2
]}

Chen, Jin-mao ^{[2
]}

Chen, Zeng ^{[1
]}

机构：

[1] Henan Univ, Coll Phys & Elect, Kaifeng 475004, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2010年 / 17卷 / 01期

基金：

中国国家自然科学基金;

关键词：

dye-sensitized solar cells; TiO2; electrode; modification; photoelectrochemical properties; RECOMBINATION; EFFICIENCY; PHOTOVOLTAGE; IMPROVEMENT; MECHANISMS; CONVERSION; IMPEDANCE;

D O I：

10.1007/s12613-010-0116-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ZnO-modified TiO2 electrode was prepared by adding Zn(CH3COO)(2)center dot 2H(2)O to the TiO2 colloid during the sol-gel production process, and was used in dye-sensitized solar cells (DSCs). The open circuit voltage (V-OC) and fill factor (ff) of the cells were improved significantly. The performance of the ZnO-modified TiO2 electrode such as dark current, transient photocurrent, impedance, absorption spectra, and flat band potential (V-fb) were investigated. It is found that the interface charge recombination impedance increases and V-fb shifts about 200 mV toward the cathodic potential. The effect mechanism of ZnO modification on the performance of DSCs may be that ZnO occupies the surface states of the TiO2 film.

引用

页码：92 / 97

页数：6

共 28 条

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