Improved performance of dye-sensitized solar cells with TiO2 nanocrystal/nanowires double-layered films as photoelectrode

Xiuqing Meng; Yan Wang; Meili Wang; Jielei Tu; Fengmin Wu

doi:10.1039/C2RA23430K

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Improved performance of dye-sensitized solar cells with TiO₂nanocrystal/nanowires double-layered films as photoelectrode

Xiuqing Meng,*^a Yan Wang,^b Meili Wang,^b Jielei Tu^c and Fengmin Wu^a

Author affiliations

* Corresponding authors

^a Research Center for Light Emitting Diodes (LED), Zhejiang Normal University, Jinhua, 321004, P. R. China

^b Institute of Semiconductors, Chinese Academy of Sciences, A35 QingHua East Road, Beijing, 100083, P. R. China

^c Solar Energy Research Institute, Yunnan Normal University, 298 Yieryi Street, Kunming, Yunnan Province, P. R. China

Abstract

A double-layered (DL) photoanode is fabricated based on TiO₂ nanowire (NW) arrays coated by TiO₂ nanocrystal (NC) films on their top. The highest efficiency of the obtained double-layered photoanode cells is ∼4.67% with 8 μm-long NW arrays and 6 μm-thick NC films. This efficiency is much higher than that of the devices with the pure TiO₂ NC films or the pure TiO₂ NW arrays as electrodes due to the synergistic effect of the dye adsorption and the rapid electron transport of NWs/NC structure.

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Article information

DOI: https://doi.org/10.1039/C2RA23430K
Article type: Paper
Submitted: 23 Oct 2012
Accepted: 21 Dec 2012
First published: 04 Jan 2013

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RSC Adv., 2013,3, 3304-3308

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Improved performance of dye-sensitized solar cells with TiO₂ nanocrystal/nanowires double-layered films as photoelectrode

X. Meng, Y. Wang, M. Wang, J. Tu and F. Wu, RSC Adv., 2013, 3, 3304 DOI: 10.1039/C2RA23430K

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