Zinc oxide (ZnO) and bandgap engineering for photoelectrochemical splitting of water to produce hydrogen

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We report material synthesis, characterization, and photoelectrochemical (PEC) measurements to explore methods to effectively reduce the band gap of ZnO for the application of PEC water splitting. We find that the band gap reduction of ZnO can be achieved by N and Cu incorporation into ZnO. We demonstrate that heavy Cu-incorporation lead to both p-type doping and band gap significantly reduced ZnO thin films. The p-type conductivity in our ZnO:Cu films is clearly revealed by Mott-Schottky plots. We further have successfully synthesized ZnO:N thin films with various reduced band gaps by reactive RF magnetron sputtering. The band gap reduction and photoresponse with visible light for N- and Cu-incorporated ZnO thin films are demonstrated.

Original languageEnglish (US)
Title of host publicationAdvances and Applications in Electroceramics II
PublisherAmerican Ceramic Society
Pages231-236
Number of pages6
ISBN (Print)9781118273357
DOIs
StatePublished - Jan 1 2012
EventAdvances and Applications in Electroceramics II - Materials Science and Technology 2011 Conference and Exhibition, MS and T 2011 - Columbus, OH, United States
Duration: Oct 16 2011Oct 20 2011

Publication series

NameCeramic Transactions
Volume235
ISSN (Print)1042-1122

Other

OtherAdvances and Applications in Electroceramics II - Materials Science and Technology 2011 Conference and Exhibition, MS and T 2011
CountryUnited States
CityColumbus, OH
Period10/16/1110/20/11

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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