Anatase TiO2 nanowires with nanoscale whiskers for the improved photovoltaic performance in dye-sensitized solar cells

  • Zhaobin Zhang
  • Wanxian Cai
  • Yanqi Lv
  • Yuanzeng Jin
  • Koucheng Chen
  • Ling Wang
  • Xingfu ZhouEmail author


TiO2 as an efficient electron transfer material has been widely utilized in dye-sensitized solar cells (DSSCs), and the morphology of TiO2 plays a decisive role in the performance of DSSCs. However, one-dimensional TiO2 nanowires, which are generally used as the efficient electron transport layers, have small specific surface area and low dye loading. Here, we introduce an effective and reproducible one-step hydrothermal method to prepare TiO2 nanowire with nanoscale whiskers. The synthetic sample was characterized by the field emission scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction. TiO2 nanowire with nanoscale whiskers has a high light scattering performance and high dye loading capacity. This novel TiO2 nanowire show a power conversion efficiency (PCE) of 4.12%, which is close to the benchmark of P25 nanoparticle usually used in DSSC fabrication. The PCE of DSSC-3 using TiO2 nanowire with nanoscale whiskers and commercial P25 double-layer photoanode has a PCE of 5.98%, showing an increase of 11.98% when compared with DSSC-2 based on pure P25 photoanode.



We acknowledge financial support from the Natural Science Foundation of China (No. 21676146), the Financial Foundation of State Key Laboratory of Materials-Oriented Chemical Engineering and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Zhaobin Zhang
    • 1
  • Wanxian Cai
    • 1
  • Yanqi Lv
    • 1
  • Yuanzeng Jin
    • 1
  • Koucheng Chen
    • 1
  • Ling Wang
    • 1
  • Xingfu Zhou
    • 1
    Email author
  1. 1.State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical EngineeringNanjing Tech UniversityNanjingChina

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