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

Document Type

Conference Proceeding

Publication Date

1-1-2012

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.

Identifier

84870541779 (Scopus)

ISBN

[9781118273357]

Publication Title

Ceramic Transactions

External Full Text Location

https://doi.org/10.1002/9781118511350.ch24

ISSN

10421122

First Page

231

Last Page

236

Volume

235

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