Photoelectrochemical Behavior of Mixed ZnO and GaN (ZnO:GaN) Thin Films Prepared by Sputtering Technique

Sudhakar Shet, Yanfa Yan, Nuggehalli Ravindra, John Turner, Mowafak Al-Jassim

Research output: Contribution to journalArticlepeer-review

4 Scopus Citations

Abstract

Mixed zinc oxide and gallium nitride (ZnO:GaN) thin films with significantly reduced bandgaps were synthesized by using zinc oxide and gallium nitride target at 100°C followed by post-deposition annealing at 500°C in ammonia for 4 h. All the films were synthesized by RF magnetron sputtering on Fluorine-doped tin oxide-coated glass. We found that mixed zinc oxide and gallium nitride (ZnO:GaN) thin films exhibited significantly reduced bandgap, as a result showed improved PEC response, compared to ZnO thin film. Furthermore, mixed zinc oxide and gallium nitride (ZnO:GaN) thin films with various bandgaps were realized by varying the O 2 mass flow rate in mixed O 2 and N 2 chamber ambient.

Original languageAmerican English
Pages (from-to)718-721
Number of pages4
JournalApplied Surface Science
Volume270
DOIs
StatePublished - 2013

NREL Publication Number

  • NREL/JA-5200-58811

Keywords

  • Ambient
  • Bandgap
  • GaN
  • Photoelectrochemical
  • Sputter
  • ZnO

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