Photoelectrochemical water splitting under visible light over anti-photocorrosive In2O3-coupling ZnO nanorod arrays photoanode

  • Yan Zhang
  • Jinqiu Zhang
  • Mengyan Nie
  • Kai Sun
  • Chunhu Li
  • Jianqiang Yu
Research Paper


In2O3 quantum dots with a high crystallinity were deposited on the surface of ZnO nanorods through a chemistry bath method. The resulting In2O3-sensitizing ZnO nanorod arrays not only exhibited enhanced photoelectrochemical activity for water splitting under visible-light irradiation, but also possessed anti-photocorrosion property. The photo-induced charge-transfer property of In2O3 could be improved greatly by coupling with ZnO. This observation demonstrated that the heterojunction at the interface between In2O3 and ZnO could efficiently reduce the recombination of photo-induced electron–hole pairs and increase the lifetime of charge carriers and therefore enhance the photo-to-current efficiency of the In2O3–ZnO nanocrystalline arrays. It reveals that the heterojunction construction between two different semiconductors plays a very important role in determining the dynamic properties of their photogenerated charge carriers and their photo-to-current conversion efficiency.


In2O3 quantum dots Photoelectrochemical water splitting ZnO nanorod array Thin-film photoanode 



This work was financially supported by the financial supports from the National Foundation of Natural Sciences (No.50878107 and No. 41206067). The China Postdoctoral Science Foundation (No. 214M551869) is also gratefully acknowledged.

Supplementary material

11051_2015_2887_MOESM1_ESM.docx (224 kb)
(Doc 225 kb)


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Yan Zhang
    • 1
    • 2
  • Jinqiu Zhang
    • 2
  • Mengyan Nie
    • 4
  • Kai Sun
    • 2
  • Chunhu Li
    • 1
  • Jianqiang Yu
    • 2
    • 3
  1. 1.College of Chemistry and Chemical EngineeringOceanology University of ChinaQingdaoChina
  2. 2.Faculty of Chemical Science and EngineeringQingdao UniversityQingdaoChina
  3. 3.Clean Energy Chemistry & MaterialsLanzhou Institute of Chemical Physics, CASLanzhouChina
  4. 4.National Centre for Advanced Tribology at Southampton, School of Engineering SciencesUniversity of SouthamptonSouthamptonUK

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