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Growth of TiO2 nanosheet-array thin films by quick chemical bath deposition for dye-sensitized solar cells

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Abstract

Rutile TiO2 nanofilms, which were composed of many nanosheet-array domains with different orientations, were synthesized directly on fluorine-doped SnO2 conductive glass (FTO) substrates by a chemical deposition method in a short time in this paper. The average thickness of the nanosheets is about 10 nm; the nanosheets in each domain were parallel to each other and perpendicular to the substrate. The size and profile of the domains have a good correspondence to those of the FTO grains of the substrate, indicating a coherent nucleating and epitaxial growing nature of the films. The nanosheets split gradually and finally developed into nanofibers on prolonging the growing time to 20 h. Dye-sensitized solar cells, which were fabricated with the films, present an open-circuit voltage of 0.63 V and a short-circuit current of 7.02 mA/cm2, respectively.

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Authors and Affiliations

  1. State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074, Hubei, People’s Republic of China

    Hu Zhu, Junyou Yang, Shuanglong Feng, Ming Liu, Jiansheng Zhang & Gen Li

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  1. Hu Zhu
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  2. Junyou Yang
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  3. Shuanglong Feng
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  4. Ming Liu
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  5. Jiansheng Zhang
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  6. Gen Li
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Correspondence to Junyou Yang.

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Zhu, H., Yang, J., Feng, S. et al. Growth of TiO2 nanosheet-array thin films by quick chemical bath deposition for dye-sensitized solar cells. Appl. Phys. A 105, 769–774 (2011). https://doi.org/10.1007/s00339-011-6513-y

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  • DOI: https://doi.org/10.1007/s00339-011-6513-y

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