Hydrogen generation using nitride photoelectrode

Kazuhiro Ohkawa*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We developed nitride photoelectrodes to produce hydrogen from water. GaN can split water into hydrogen and oxygen as a photocatalyst with no extra bias applied. The irradiated photon-to-current conversion efficiency was as high as 60-70% in the wavelength region below its bandgap. We confirmed good stability and high efficiency of a GaN photoelectrode.

Original languageEnglish (US)
Title of host publicationQuantum Electronics and Laser Science Conference, QELS 2012
Subtitle of host publicationApplications and Technology, CLEO_AT 2012
StatePublished - 2012
Externally publishedYes
EventQuantum Electronics and Laser Science Conference, QELS 2012 - San Jose, CA, United States
Duration: May 6 2012May 11 2012


OtherQuantum Electronics and Laser Science Conference, QELS 2012
Country/TerritoryUnited States
CitySan Jose, CA

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Hydrogen generation using nitride photoelectrode'. Together they form a unique fingerprint.

Cite this