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Flexible TiO2 nanotube-based dye-sensitized solar cells using laser-drilled microhole array electrodes

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Abstract

Here we report on the growth of TiO2 nanotube arrays (TNAs) on Ti foil with laser-drilled microhole arrays (MHAs). The MHAs promoted the adhesion of the TNA film to Ti substrate, which is well suited for flexible dye-sensitized solar cells (DSSCs). The MHA photoanode and TNAs were characterized by SEM, 3D optical profiling, XRD and TEM. For such a flexible MHA photoanode, the TNA-based DSSC was assembled using a platinized conductive glass counter electrode, and a conversion efficiency of 3.45% was achieved under AM 1.5 condition. A flexible TNA-based DSSC was also fabricated using a flexible MHA photoanode combined with a platinized indium tin oxide-polyethylene naphthalate counter electrode, which achieved 2.67% photovoltaic conversion efficiency under simulated AM 1.5 sunlight.

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Authors and Affiliations

  1. School of Physics and Engineering, Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, 510275, China

    Yong Liu, Hongmei Xu, Hai Wang, Minyi Zhong & Hui Shen

  2. Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou, 510275, China

    Wenxia Zhao & Chaolun Liang

Authors
  1. Yong Liu
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  2. Hongmei Xu
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  3. Hai Wang
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  4. Wenxia Zhao
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  5. Chaolun Liang
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  6. Minyi Zhong
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  7. Hui Shen
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Correspondence to Yong Liu.

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Liu, Y., Xu, H., Wang, H. et al. Flexible TiO2 nanotube-based dye-sensitized solar cells using laser-drilled microhole array electrodes. Appl. Phys. A 102, 127–130 (2011). https://doi.org/10.1007/s00339-010-6006-4

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  • DOI: https://doi.org/10.1007/s00339-010-6006-4

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