100-Fold Enhancement of Charge Transport in Uniaxially Oriented Mesoporous Anatase TiO2 Films

Kai Zhu, Ke Li, Jie Liu, Xia Sheng, Liping Chen, Tao Xu, Xinjian Feng

Research output: Contribution to journalArticlepeer-review

9 Scopus Citations

Abstract

Mesoporous semiconductor films are of considerable interest for applications in photoelectrochemical devices, however, despite intensive research till now, their charge transport properties remain significantly lower than their single-crystal counterparts. Herein, we report a novel low-temperature template-free technique for growing high surface area mesoporous anatase TiO2 films with a preferred [001] crystalline-orientation on FTO-coated glass substrate. Compared to mesoporous films that comprised of randomly oriented crystallites, the uniaxial orientation enables a 100-fold increase in the rate of electron transport. The uniaxially oriented mesoporous anatase TiO2 films exhibit should greatly facilitate the development and application of photoelectrochemical and electrochemical devices.

Original languageAmerican English
Pages (from-to)89-92
Number of pages4
JournalChemistry - A European Journal
Volume24
Issue number1
DOIs
StatePublished - 2018

Bibliographical note

Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

NREL Publication Number

  • NREL/JA-5900-70673

Keywords

  • charge carrier
  • charge transport dynamics
  • photoelectronic systems
  • semiconductors
  • surface area

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