期刊
APPLIED SURFACE SCIENCE
卷 258, 期 1, 页码 321-326出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2011.08.058
关键词
Dye-sensitized solar cell; Fill factor; Electron injection efficiency
类别
资金
- NSFC [60976055]
- Fundamental Research Funds for the Central Universities [CDJXS11102208]
- Postgraduates' Innovative Training Project of the 3rd-211 Project [S-09109]
- Chongqing University
The fill factor of dye-sensitized solar cells based on the ZnO nanowire array is very low, which is usually ascribed to a rapid charge recombination. In this article, the influence on the fill factor of ZnO nanowire array cell is investigated and discussed by comparing dark current and decay rate of open circuit potential of the ZnO nanowire array cell with those of the ZnO nanoparticle cell, TiO2 nanoparticle cell and TiO2-coated ZnO nanowire array cell. The results demonstrate that the low fill factor of the ZnO nanowire array cell is largely caused by a rapid decrease of electron injection efficiency rather than a rapid charge recombination, which is decided by the absorption nature of Ru-complexed dye molecules on ZnO surface and repellency of radial electric field. The fill factor of the ZnO nanowire array cell can be improved by coating ZnO nanowires with a wide band gap semiconductor material or metal oxide insulator. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据