Submicrometer-scale ZnO Composite Aggregate Arrays Photoanodes for Dye-sensitized Solar Cells

doi:10.1016/j.jmst.2013.02.004

J. Mater. Sci. Technol. ›› 2013, Vol. 29 ›› Issue (5): 415-418.DOI: 10.1016/j.jmst.2013.02.004

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Submicrometer-scale ZnO Composite Aggregate Arrays Photoanodes for Dye-sensitized Solar Cells

Wei Jia, Suihu Dang, Hairui Liu, Zhuxia Zhang, Tianbao Li, Xuguang Liu, Bingshe Xu

Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China

Received:2012-10-11 Revised:2012-11-22 Online:2013-05-30 Published:2013-05-17
Contact: B. Xu
Supported by:
Changjiang Scholar and Innovative Research Team of the University of China (No. IRT0972), the National Natural Science Foundation of China (No. 51002102), the Natural Science Foundation of Shanxi Province, China (No. 2011011022-1) .

Abstract

Abstract:

Submicrometer-scale ZnO composite aggregate arrays of nanorods and nanoparticles were prepared by simple wet-chemical route and studied as dye-sensitized solar cells (DSSCs) photoanodes. The ZnO composite aggregate arrays significantly improved the efficiency of DSSCs due to their relatively high surface area, fast electron transport, and enhanced light-scattering capability. A short current density (J_sc) of 11.7 mA/cm² and an overall solar-to-electric energy conversion efficiency (η) of 3.17% were achieved for the ZnO composite aggregate DSSCs, which were much higher than those obtained for the monodisperse aggregate DSSCs (J_sc = 6.9 mA/cm², η = 1.51%) and ZnO nanorod array DSSCs (J_sc = 4.2 mA/cm², η = 0.61%).

Key words: Field emission, Semiconductors, Chemical synthesis, Microstructure

Wei Jia, Suihu Dang, Hairui Liu, Zhuxia Zhang, Tianbao Li, Xuguang Liu, Bingshe Xu. Submicrometer-scale ZnO Composite Aggregate Arrays Photoanodes for Dye-sensitized Solar Cells[J]. J. Mater. Sci. Technol., 2013, 29(5): 415-418.

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Submicrometer-scale ZnO Composite Aggregate Arrays Photoanodes for Dye-sensitized Solar Cells

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