Chemical and morphological characterization of anodic oxidation of n-GaN in inorganic electrolytes

Artem Shushanian, Daisuke Iida, Yu Han, Kazuhiro Ohkawa

Research output: Contribution to journalArticlepeer-review

Abstract

To study the nature of electrochemical property of III-nitrides, we examined here the behaviour of a n-GaN anodic oxidation reaction within a voltage range of 5 – 20 V in inorganic electrolytes as the pH value varied from 0 to 13. Here, we analysed liquid and vapor phase products of electrochemical oxidation of n-GaN using physicochemical methods and observed different characteristics of the formation of porous n-GaN nanostructures depending on the reaction media. The results show that this reaction is six-electron and proceeds via the formation of surface intermediates. Anodic oxidation of n-GaN forms branching current-oriented nanopores as this process propagates via threading dislocations on the surface of the n-GaN layer.
Original languageEnglish (US)
JournalNew Journal of Chemistry
DOIs
StatePublished - Nov 7 2022

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemistry(all)
  • Catalysis

Fingerprint

Dive into the research topics of 'Chemical and morphological characterization of anodic oxidation of n-GaN in inorganic electrolytes'. Together they form a unique fingerprint.

Cite this