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Improvement of Photoelectrochemical Reaction for Hydrogen Generation from Water using N-face GaN

  • Katsushi Fujii (a1), Keiichi Sato (a2), Takashi Kato (a3), Tsutomu Minegishi (a4) and Takafumi Yao (a5)...

Abstract

Photoelectrochemical properties of Ga- and N-face GaN grown by hydride vapor phase epitaxy (HVPE) were investigated. The properties were also compared with Ga-face GaN grown by metal-organic vapor phase epitaxy (MOVPE). The flatband potentials were in order of Ga-face GaN grown by MOVPE < N-face GaN < Ga-face GaN. The highest photocurrent density at zero bias was obtained from the N-face GaN. The photocurrent density was over 3 times larger than that of Ga-face GaN.

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Keywords

Improvement of Photoelectrochemical Reaction for Hydrogen Generation from Water using N-face GaN

  • Katsushi Fujii (a1), Keiichi Sato (a2), Takashi Kato (a3), Tsutomu Minegishi (a4) and Takafumi Yao (a5)...

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