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Photoelectrochemical characteristics of TiO2 nanorod arrays grown on fluorine doped tin oxide substrates by the facile seeding layer assisted hydrothermal method

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Abstract

TiO2 nanorod arrays (NRAs) were prepared on fluorine doped tin oxide (FTO) substrates by a facile two-step hydrothermal method. The nanorods were selectively grown on the FTO regions which were covered with TiO2 seeding layer. It took 5 h to obtain the compact arrays with the nanorod length of ~2 μm and diameter of ~50 nm. The photoelectrochemical (PEC) properties of TiO2 NRAs are also investigated. It is demonstrated that the TiO2 NRAs indicate the good photoelectric conversion ability with an efficiency of 0.22% at a full-wavelength irradiation. A photocurrent density of 0.21 mA/cm2 is observed at 0.7 V versus the saturated calomel electrode (SCE). More evidences suggest that the charge transferring resistance is lowered at an irradiation, while the flat-band potential (V fb) is shifted towards the positive side.

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Authors and Affiliations

  1. School of Medical Imaging, Xuzhou Medical College, Xuzhou, 221004, China

    Mei-rong Sui  (隋美蓉), Cui-ping Han  (韩翠平), Yong Wang  (王永), Lu Tang  (唐璐) & Hui Tang  (唐慧)

  2. School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, 221116, China

    Xiu-quan Gu  (顾修全)

Authors
  1. Mei-rong Sui  (隋美蓉)
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  2. Cui-ping Han  (韩翠平)
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  3. Xiu-quan Gu  (顾修全)
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  4. Yong Wang  (王永)
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  5. Lu Tang  (唐璐)
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  6. Hui Tang  (唐慧)
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Corresponding author

Correspondence to Mei-rong Sui  (隋美蓉).

Additional information

This work has been supported by the Science and Technology Projects of Xuzhou City (No.KC14SM088), and the Natural Science Fund for Colleges and Universities in Jiangsu Province (No.15KJB430031).

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Sui, Mr., Han, Cp., Gu, Xq. et al. Photoelectrochemical characteristics of TiO2 nanorod arrays grown on fluorine doped tin oxide substrates by the facile seeding layer assisted hydrothermal method. Optoelectron. Lett. 12, 161–165 (2016). https://doi.org/10.1007/s11801-016-5242-z

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  • DOI: https://doi.org/10.1007/s11801-016-5242-z

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