Hydrogen generation from aqueous water using n-GaN by photoassisted electrolysis

Katsushi Fujii*, Kazuhiro Ohkawa

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

37 Scopus citations


We propose a new GaN application for water splitting using photoelectrolysis. Hydrogen gas generation from a counterelectrode was clearly observed using light-illuminated n-type GaN as a working photoelectrode in an electrolyte. The hydrogen generation in KOH was the highest. Corrosion of GaN in NaCl and HC1 was, however, quite less than that in KOH during photoelectrolysis. A combination of GaN and HC1 is promising in stable photo-electrolysis for H2 generation.

Original languageEnglish (US)
Pages (from-to)2270-2273
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
StatePublished - 2006
Externally publishedYes
Event6th International Conference on Nitride Semiconductors, ICNS-6 - Bremen, Germany
Duration: Aug 28 2005Sep 2 2005

ASJC Scopus subject areas

  • Condensed Matter Physics


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