Photovoltage enhancement of dye sensitised solar cells by using ZnO modified TiO2 electrode

被引：15
|
作者：
Lin, L. [1 ]
Lin, J. M. [1 ]
Wu, J. H. [1 ]
Hao, S. C. [1 ]
Lan, Z. [1 ]
机构：
[1] Huaqiao Univ, Inst Mat Phys Chem, Key Lab Funct Mat Fujian Higher Educ, Quanzhou 362021, Peoples R China
来源：
MATERIALS RESEARCH INNOVATIONS | 2010年 / 14卷 / 05期
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
ZnO; TiO2; Dye sensitised solar cell; Electrolyte; NANOCRYSTALLINE TIO2; EFFICIENCY; CONVERSION; FILMS; RECOMBINATION; PERFORMANCE; LIGHT; OXIDE;
D O I：
10.1179/143307510X12820854748791
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A ZnO modified TiO2 (ZnO/TiO2) film was prepared by immersing TiO2 electrodes in Zn(Ac)(2) aqueous solution. The open circuit voltage of a dye sensitised solar cell (DSSC) with the ZnO/TiO2 film electrode has a dramatic enhancement, compared to the DSSC with the TiO2 film electrode. However, the short circuit current density of the DSSC with the ZnO/TiO2 film electrode is lower than that with TiO2 electrode. The film electrodes were characterised by SEM, EDX and UV-vis, and the photoelectric performance of DSSCs were measured. The photovoltage enhancement is attributed to the formation of a flat-band potential energy barrier by ZnO at TiO2/electrolyte interface. The decline of the photocurrent with ZnO/TiO2 film electrode is due to poor dye absorption on larger particles of ZnO.
引用
收藏
页码：370 / 374
页数：5
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