Photo-catalysis effect of III-V nitride film

Masatomo Sumiya, Keisuke Ohara, Takeo Ohsawa, Yu Kawai, Masato Shirai, Shunro Fuke, Hideomi Koinuma, Yuji Matsumoto

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


We have studied the photo catalysis effect in III-V nitride film having the potential overall water splitting under UV- or visible light irradiation. It was found that the photo catalysis effect was greater on the surface of GaN film with Ga-face (+c) polarity than that with N-face (-c) polarity. This polarity dependence was discussed in term of band profile caused by the spontaneous polarization. Alloying InN mole fraction with GaN made it possible to generate the photo catalysis effect for visible light in III-V nitride film.

Original languageEnglish
Pages (from-to)2642-2645
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number7
Publication statusPublished - 2007
EventInternational Workshop on Nitride Semiconductors, IWN 2006 - Kyoto, Japan
Duration: 2006 Oct 222006 Oct 27


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