Efficiency enhancement of ZnO-based dye-sensitized solar cell by hollow TiO2 nanofibers

被引：35

作者：

Li, Fengrong ^{[1
]}

Wang, Guangchao ^{[1
]}

Jiao, Yu ^{[1
]}

Li, Jiangyu ^{[2
]}

Xie, Shuhong ^{[1
]}

机构：

[1] Xiangtan Univ, Fac Mat Optoelect & Phys, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China

[2] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 611卷

关键词：

Dye-sensitized solar cells; TiO2/ZnO composite photoanode; Hollow TiO2 nanofiber; Charge recombination; Electron transport; NANOTUBE ARRAYS; PHOTOCURRENT; PERFORMANCE; SCATTERING;

D O I：

10.1016/j.jallcom.2014.05.100

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

One-dimensional nanostructures as the photoanode of dye-sensitized solar cell (DSSC) can provide a direct transport pathway for electrons injection to increase electrons transfer efficiency. In this work, hollow TiO2 nanofibers were fabricated by one step electrospinning based on sol-gel method, and were used to successfully enhance the conversion efficiency of ZnO-based DSSC. The effects of different TiO2 weight percentages on the performance of TiO2/ZnO composite photoanode were investigated systematically. The results indicate that the light scattering of the photoanode film is increased and the electrons recombination is suppressed when appropriate amount of hollow TiO2 nanofibers was added into ZnO. The maximal energy conversion efficiency reaches 4.59% by adding 10 wt.% of hollow TiO2 nanofibers, which is 62% higher than that of DSSC based on pure ZnO nanoparticles. (C) 2014 Elsevier B. V. All rights reserved.

引用

页码：19 / 23

页数：5

共 33 条

[1] Electron injection and recombination in Ru(dcbpy)2(NCS)2 sensitized nanostructured ZnO [J].

Bauer, C ;

Boschloo, G ;

Mukhtar, E ;

Hagfeldt, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (24) :5585-5588

[2] Formation of Branched ZnO Nanowires from Solvothermal Method and Dye-Sensitized Solar Cells Applications [J].

Cheng, Hsin-Ming ;

Chiu, Wei-Hao ;

Lee, Chia-Hua ;

Tsai, Song-Yeu ;

Hsieh, Wen-Feng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (42) :16359-16364

[3] Preparation of TiO2 hollow nanofibers by electrospining combined with sol-gel process [J].

Cheng, Yongliang ;

Huang, Wenzhi ;

Zhang, Yanfei ;

Zhu, Ling ;

Liu, Yangjia ;

Fan, Xizhi ;

Cao, Xueqiang .

CRYSTENGCOMM, 2010, 12 (07) :2256-2260

[4] Hybrid TiO2-SnO2 Nanotube Arrays for Dye-Sensitized Solar Cells [J].

Desai, Umang V. ;

Xu, Chengkun ;

Wu, Jiamin ;

Gao, Di .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (07) :3232-3239

[5] Computer simulations of light scattering and absorption in dye-sensitized solar cells [J].

Ferber, J ;

Luther, J .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1998, 54 (1-4) :265-275

[6] Modeling of photovoltage and photocurrent in dye-sensitized titanium dioxide solar cells [J].

Ferber, J ;

Luther, J .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (21) :4895-4903

[7] Photoelectrochemical cells [J].

Grätzel, M .

NATURE, 2001, 414 (6861) :338-344

[8] Band-edge engineered hybrid structures for dye-sensitized solar cells based on SnO2 nanowires [J].

Gubbala, Suresh ;

Chakrapani, Vidhya ;

Kumar, Vivekanand ;

Sunkara, Mahendra K. .

ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (16) :2411-2418

[9] PHOTOELECTROCHEMICAL STUDIES OF COLLOIDAL TIO2-FILMS - THE CHARGE SEPARATION PROCESS STUDIED BY MEANS OF ACTION SPECTRA IN THE UV REGION [J].

HAGFELDT, A ;

BJORKSTEN, U ;

LINDQUIST, SE .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1992, 27 (04) :293-304

[10] Effect of polyethyleneimine on the growth of ZnO nanorod arrays and their application in dye-sensitized solar cells [J].

Huang, Qiuliu ;

Fang, Liang ;

Chen, Xia ;

Saleem, Muhammad .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (39) :9456-9459

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