Fabrication of Cu2O/TiO2nanotube heterojunction arrays and investigation of its photoelectrochemical behavior

Y. Hou, X. Y. Li, Q. D. Zhao, X. Quan, Guohua Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

119 Citations (Scopus)

Abstract

Cu2O/TiO2nanotube heterojunction arrays have been prepared by photoreduction depositing Cu2O nanoparticles on TiO2nanotube arrays. The heterojunction arrays show uniformly distributed Cu2O nanoparticles, and high crystallinity of anatase and cubic from the TiO2and Cu2O, respectively. The asymmetry of the current-voltage plot for the material reveals that a heterojunction has been formed between TiO2and Cu2O. Enhanced charge separation efficiency and improved photoconversion capability are confirmed by electrochemical impedance spectroscopy and photocurrent measurement.
Original languageEnglish
Article number093108
JournalApplied Physics Letters
Volume95
Issue number9
DOIs
Publication statusPublished - 14 Sep 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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