Compound Homojunction:Heterojunction Reduces Bulk and Interface Recombination in ZnO Photoanodes for Water Splitting

Ning Wang, Min Liu, Hairen Tan, Junhui Liang, Qixing Zhang, Changchun Wei, Ying Zhao, Edward H. Sargent, Xiaodan Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Researchers have developed an n+–n homojunction in which the gradient in carrier concentration produces a spatial variation in the Fermi level, oviding a built-in electronic field that enhances the bulk charge separation and transfer. Using this concept, the researchers demonstrate ZnO n+–n multi-layer thin-film devices to enhance the photoelectrochemical (PEC) performance.

Original languageEnglish (US)
Article number1603527
JournalSmall
Volume13
Issue number10
DOIs
StatePublished - Mar 14 2017

Keywords

  • chemical vapor deposition
  • doping
  • photoanodes
  • photoelectrochemistry
  • structure–property relationships

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Biotechnology
  • Biomaterials

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