Journal
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS
Volume 44, Issue 16-19, Pages L543-L545Publisher
INST PURE APPLIED PHYSICS
DOI: 10.1143/JJAP.44.L543
Keywords
gallium nitride; semiconductor-electrolyte contacts; photoelectrochemical cells; photoelectrolysis; water splitting
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Hydrogen gas generation from a counterelectrode was clearly observed for the first time using light-illuminated n-type GaN as a working photoelectrode, in an electrolyte. The application of extra bias to a working electrode was required to obtain a sufficient volume of generated gas. The reactions at the GaN photoelectrode were both GaN decomposition and water oxiclization, simultaneously.
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