ZnO/TiO2 core–shell nanowire arrays for enhanced dye-sensitized solar cell efficiency

被引：0

作者：

Ran Zhao

Liping Zhu

Fangping Cai

Zhiguo Yang

Xiuquan Gu

Jun Huang

Ling Cao

机构：

[1] Zhejiang University,State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering

来源：

Applied Physics A | 2013年 / 113卷

关键词：

TiO2; High Resolution Transmission Electron Microscopy; Photogenerated Electron; TiO2 Shell; Energy Barrier Layer;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We present a new method of synthesizing ZnO/TiO2 core–shell nanowire (NW) arrays for the fabrication of dye-sensitized solar cells (DSSCs). Vertically aligned ZnO NW arrays were obtained on Si substrates, and modified by a TiO2 shell in order to solve the recombination problems via a cost-effective spin-coating method. The structure of the ZnO/TiO2 composite NW arrays was characterized. The experimental results indicate that the TiO2 shell enhances the performance of the DSSCs, through improving the stability of the ZnO NWs and decreasing the recombination of photogenerated electrons on the NW surface. The highest overall conversion efficiency of the cell reaches about 3.0 %.

引用

页码：67 / 73

页数：6

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