In Situ Controllable Growth of Cu2SnS3 Film as Low-Cost Counter Electrodes for Dye-Sensitized Solar Cells

doi:10.1007/s40195-015-0234-8

金属学报英文版 ›› 2015, Vol. 28 ›› Issue (5): 580-583.DOI: 10.1007/s40195-015-0234-8

收稿日期:2014-07-25 修回日期:2014-11-13 出版日期:2015-02-13 发布日期:2015-07-23

In Situ Controllable Growth of Cu₂SnS₃ Film as Low-Cost Counter Electrodes for Dye-Sensitized Solar Cells

Wei Xu^1,², Xin Jiang¹, Jian-Min Chen³, Rui-Qin Tan⁴, Wei-Jie Song^1,²()

1 Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
2 Ningbo Key Laboratory of Silicon and Organic Thin Film Optoelectronic Technologies, Ningbo, 315201, China
3 State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
4 Faculty of Information Science and Engineering, Ningbo University, Ningbo, 315211, China

Received:2014-07-25 Revised:2014-11-13 Online:2015-02-13 Published:2015-07-23

摘要/Abstract

Abstract:

Morphology-controllable Cu₂SnS₃ thin films on Mo-glass were prepared via a facile in situ one-step solvothermal process and used in dye-sensitized solar cells as counter electrodes. The effects of different solvents on the morphology of films were investigated. DSC based on the porous net-like Cu₂SnS₃ thin film as counter electrodes showed a power conversion efficiency of 2.30%, which was improved to 3.35% after annealing.

Key words: Cu2SnS3, Thin films, Counter electrodes, Solar cells, Power conversion efficiency

. [J]. 金属学报英文版, 2015, 28(5): 580-583.

Wei Xu, Xin Jiang, Jian-Min Chen, Rui-Qin Tan, Wei-Jie Song. In Situ Controllable Growth of Cu₂SnS₃ Film as Low-Cost Counter Electrodes for Dye-Sensitized Solar Cells[J]. Acta Metallurgica Sinica (English Letters), 2015, 28(5): 580-583.

图/表 5

Fig. 1 XRD patterns of as-prepared CTS films with Mo-glass substrate using different solvents: a glycol, the film named as FA; b ethanol, the film named as FB; c DMF, the film named FC

Fig. 2 Top view and the cross-sectional SEM images of CTS films using different solvents: a, b glycol, the film indicated by FA; c, d ethanol, the film named as FB; e, f DMF, the film named FC. The insets of a and c show high-magnification SEM images

Fig. 3 Reflectivity of as-prepared CTS thin films on Mo film and original Mo film

Fig. 4 a Current density-voltage characteristics for the DSCs based on pristine CTS CEs (FA, FB, and FC) and annealed CTS electrodes (A-FA, A-FA, and A-FC), b IPCE spectra of the DSCs based on CEs of the CTS film FA and A-FA

Table 1 Photovoltaic performance of DSCs based on the as-prepared CTS CEs

Sample	V _oc (V)	J _sc (mA/cm²)	FF	PCE (%)
FA	0.69	6.16	0.54	2.30
FB	0.69	4.86	0.20	0.66
FC	0.60	5.09	0.57	1.75
A-FA	0.73	6.54	0.70	3.35
A-FB	0.73	5.59	0.63	2.56
A-FC	0.73	6.05	0.66	2.88

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In Situ Controllable Growth of Cu₂SnS₃ Film as Low-Cost Counter Electrodes for Dye-Sensitized Solar Cells

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