Graphene-compositing optimization of the properties of dye-sensitized solar cells

被引：42

作者：

Fang, Xiaoli ^{[1
]}

Li, Meiya ^{[1
]}

Guo, Kaimo ^{[1
]}

Liu, Xiaolian ^{[1
]}

Zhu, Yongdan ^{[1
]}

Sebo, Bobby ^{[1
]}

Zhao, Xingzhong ^{[1
]}

机构：

[1] Wuhan Univ, Sch Phys & Technol, Minist Educ, Key Lab Artificial Microl Nanostruct, Wuhan 430072, Peoples R China

来源：

SOLAR ENERGY | 2014年 / 101卷

关键词：

Dye sensitized solar cell; Graphene-compositing; Raman spectra; Dye absorption; PHOTOVOLTAIC PERFORMANCE; ELECTRON-TRANSPORT; CHARGE-TRANSPORT; DOPED TIO2; NANOCOMPOSITE; LAYER;

D O I：

10.1016/j.solener.2013.12.005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

080707 [能源环境工程]; 082001 [油气井工程];

摘要：

Graphene-composited TiO2 photoelectrodes are prepared by hydrothermal method. The influences of different amount of graphene on the structures and properties of the dye-sensitized solar cells (DSSCs) are studied and an optimal graphene-composited DSSC is obtained. Studies indicate that compositing of graphene can effectively enhance the open circuit voltage, short circuit current density, and photoelectric conversion efficiency (eta) of the DSSCs. Furthermore, the eta of the DSSC with the optimal graphene-composited TiO2 film is 7.02 +/- 0.06%, significantly higher than that of the pure TiO2 DSSC. These improvements can be attributed to the increased dye absorption due probably to the increase of the photoelectrode films' specific surface area and the good conductivity of graphene. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：176 / 181

页数：6

共 33 条

[1]

Determination of parameters of electron transport in dye-sensitized solar cells using electrochemical impedance spectroscopy [J].