Electron transport properties in ZnO nanowire array/nanoparticle composite dye-sensitized solar cells

被引：164

作者：

Ku, Chen-Hao ^{[1
]}

Wu, Jih-Jen ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Chem Engn, Tainan 701, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 09期

关键词：

D O I：

10.1063/1.2778454

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A significant improvement of the efficiency of the ZnO nanowire (NW) dye-sensitized solar cell (DSSC) has been achieved by the chemical bath deposition of the dense nanoparticles (NPs) within the interstices of the vertical ZnO-NW anode. Impedance analyses of the electron transports in DSSCs reveal that the effective diffusion coefficient of an electron in the ZnO-NW array/NP composite anode falls between those in the ZnO-NW and TiO2-NP anodes. The superior performance of the ZnO-NW array/NP composite DSSC to the ZnO-NW cell is mainly ascribed to the enrichment of the light harvesting without significantly sacrificing the electron transport efficiency.

引用

页数：3

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