Presentation	2005/5/20 Photoelectrolysis device of water using GaN : Photoelectrochemistry of GaN Katsushi FUJII, Kazuhiro OHKAWA,
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Abstract(in English)	We propose a new GaN device that the photoelectrochemical cell with a GaN working electrode is used for water splitting. The band-edge potentials of n- and p-type GaN were clarified to be aplicable as the photoelectrode of water splitting from impedance measurements. Clear photo-current was observed from current-voltage measurement. Hydrogen generation from Pt counterelectrode was demonstrated using n-type GaN photoelectrode with 1V extra bias. The GaN electrode was stable in HCl electrolyte. Thus, GaN is expected to use as a photoelectrode for H_2 generation by water photoelectrolysis.
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Keyword(in English)	GaN / Photoelectrolysis / Electrolysis of water / H_2 evolution
Paper #	ED2005-46,CPM2005-38,SDM2005-46
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Conference Information
Committee	CPM
Conference Date	2005/5/20(1days)
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Registration To	Component Parts and Materials (CPM)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Photoelectrolysis device of water using GaN : Photoelectrochemistry of GaN
Sub Title (in English)
Keyword(1)	GaN
Keyword(2)	Photoelectrolysis
Keyword(3)	Electrolysis of water
Keyword(4)	H_2 evolution
1st Author's Name	Katsushi FUJII
1st Author's Affiliation	Nakamura Inhomogeneous Crystal Project, Japan Science and Technology Agency (JST)()
2nd Author's Name	Kazuhiro OHKAWA
2nd Author's Affiliation	Dept. of Applied Physics, Tokyo University of Science
Date	2005/5/20
Paper #	ED2005-46,CPM2005-38,SDM2005-46
Volume (vol)	vol.105
Number (no)	92
Page	pp.pp.-
#Pages	6
Date of Issue