Zinc-doping in TiO2 films to enhance photovoltaic Performance of dye-sensitized solar

被引：1

作者：

Liu, Qiuping ^{[1
]}

Zhou, Yang ^{[1
]}

Duan, Yangdong ^{[2
]}

Lin, Yuan ^{[2
]}

机构：

[1] Beijing Jiaotong Univ, Sch Mech & Control Engn, Beijing 100044, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Photochem, Beijing 100190, Peoples R China

来源：

MECHANICAL, MATERIALS AND MANUFACTURING ENGINEERING, PTS 1-3 | 2011年 / 66-68卷

关键词：

Photovoltaic performance; Titanium dioxide; Zn-doped; dye-sensitized solar cells; CELLS; ELECTRODES; EFFICIENCY; IONS; NB;

D O I：

10.4028/www.scientific.net/AMM.66-68.224

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dye-sensitized solar cells based on Zn-doped TiO2 thin film prepared by the hydrothermal method show a photovoltaic efficiency of 7.68%, which is higher than that of the undoped TiO2 thin film (6.16%). The Zn-doped films exhibit an elevated electron Fermi level,which may enhance band bending to lower the density of empty trap states. Because of this Zn-doping, the consequent Dsscs can alleviate the decay of light to electric energy conversion efficiency due to light intensity reduction. Intensity-modulated photocurrent spectroscopic analysis reveals that enhanced transport of photogenerated electrons as a result of the trap density minimization is responsible for the high photovoltaic performance.

引用

页码：224 / +

页数：2

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