Enhanced DSSC performance with high surface area thin anatase TiO2 nanoleaves

被引：58

作者：

Dhas, Vivek ^{[1
]}

Muduli, Subas ^{[1
]}

Agarkar, Shruti ^{[1
]}

Rana, Abhimanyu ^{[1
]}

Hannoyer, Beatrice ^{[2
]}

Banerjee, Rahul ^{[1
]}

Ogale, Satishchandra ^{[1
]}

机构：

[1] CSIR, Natl Chem Lab, Pune 411008, Maharashtra, India

[2] Univ Rouen, CNRS, GPM UMR 6634, F-76801 Etienne Du Rouvray, France

来源：

SOLAR ENERGY | 2011年 / 85卷 / 06期

关键词：

Dye-sensitized solar cells; Hydrothermal; Electrochemical impedance spectroscopy; SENSITIZED SOLAR-CELLS; EFFICIENCY; ARRAYS;

D O I：

10.1016/j.solener.2011.02.029

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：

0807 ; 0820 ;

摘要：

Thin anatase TiO2 nanoleaves (NLs) with high surface area (similar to 93 m(2)/g) are synthesized by hydrothermal route and dye-sensitized solar cells (DSSC) made using such NLs are compared with those made with hydro-thermally synthesized TiO2 nanoparticles and the Degussa P25 powder. The NLs-based DSSCs show increment of 16% and 24% in the total conversion efficiency over the cells made with NPs and P25 respectively. Interestingly, the highest increment in the conversion efficiency (similar to 35%) is achieved for cells made using a 50:50 (wt/wt) mixture of NLs and NPs. In this case the dye loading is found to be >50% higher than the case of NP films. Moreover the DC resistance of diffusion of I-3(-) in electrolyte (as revealed by the electrochemical impedance spectroscopy) is substantially lower than the NP film case, other cell parameters being nominally comparable. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1213 / 1219

页数：7

共 17 条

[1] Highly efficient dye-sensitized solar cells with a titania thin-film electrode composed of a network structure of single-crystal-like TiO2 nanowires made by the "oriented attachment" mechanism [J].