Enhanced capability of photoelectrochemical CO2 conversion system using an AlGaN/GaN photoelectrode

Masahiro Deguchi; Satoshi Yotsuhashi; Hiroshi Hashiba; Yuka Yamada; Kazuhiro Ohkawa

doi:10.7567/JJAP.52.08JF07

Enhanced capability of photoelectrochemical CO₂ conversion system using an AlGaN/GaN photoelectrode

Masahiro Deguchi, Satoshi Yotsuhashi, Hiroshi Hashiba, Yuka Yamada, Kazuhiro Ohkawa

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

We report significantly improved photosynthesis system based on AlGaN/GaN photochemical process. The resultant energy conversion efficiency is 0.13% which is the same level as that of real plants. The capability of this system is enhanced by high cathode potential due to the reduction of energy loss while utilizing the piezoelectric effect in the AlGaN/GaN heterostructure. The Faradaic efficiency of the CO₂ conversion to organic materials is enhanced, accompanied by an increment in photocurrent by modification of the AlGaN/GaN photoelectrode structure and electrolytes. Furthermore, reaction products such as C₂H₄ and C₂H₅OH are generated by light illumination alone.

Original language	English (US)
Article number	08JF07
Journal	Japanese Journal of Applied Physics
Volume	52
Issue number	8 PART 2
DOIs	https://doi.org/10.7567/JJAP.52.08JF07
State	Published - Aug 2013
Externally published	Yes

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

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title = "Enhanced capability of photoelectrochemical CO2 conversion system using an AlGaN/GaN photoelectrode",

abstract = "We report significantly improved photosynthesis system based on AlGaN/GaN photochemical process. The resultant energy conversion efficiency is 0.13% which is the same level as that of real plants. The capability of this system is enhanced by high cathode potential due to the reduction of energy loss while utilizing the piezoelectric effect in the AlGaN/GaN heterostructure. The Faradaic efficiency of the CO2 conversion to organic materials is enhanced, accompanied by an increment in photocurrent by modification of the AlGaN/GaN photoelectrode structure and electrolytes. Furthermore, reaction products such as C2H4 and C2H5OH are generated by light illumination alone.",

author = "Masahiro Deguchi and Satoshi Yotsuhashi and Hiroshi Hashiba and Yuka Yamada and Kazuhiro Ohkawa",

year = "2013",

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doi = "10.7567/JJAP.52.08JF07",

language = "English (US)",

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journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

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T1 - Enhanced capability of photoelectrochemical CO2 conversion system using an AlGaN/GaN photoelectrode

AU - Deguchi, Masahiro

AU - Yotsuhashi, Satoshi

AU - Hashiba, Hiroshi

AU - Yamada, Yuka

AU - Ohkawa, Kazuhiro

PY - 2013/8

Y1 - 2013/8

N2 - We report significantly improved photosynthesis system based on AlGaN/GaN photochemical process. The resultant energy conversion efficiency is 0.13% which is the same level as that of real plants. The capability of this system is enhanced by high cathode potential due to the reduction of energy loss while utilizing the piezoelectric effect in the AlGaN/GaN heterostructure. The Faradaic efficiency of the CO2 conversion to organic materials is enhanced, accompanied by an increment in photocurrent by modification of the AlGaN/GaN photoelectrode structure and electrolytes. Furthermore, reaction products such as C2H4 and C2H5OH are generated by light illumination alone.

AB - We report significantly improved photosynthesis system based on AlGaN/GaN photochemical process. The resultant energy conversion efficiency is 0.13% which is the same level as that of real plants. The capability of this system is enhanced by high cathode potential due to the reduction of energy loss while utilizing the piezoelectric effect in the AlGaN/GaN heterostructure. The Faradaic efficiency of the CO2 conversion to organic materials is enhanced, accompanied by an increment in photocurrent by modification of the AlGaN/GaN photoelectrode structure and electrolytes. Furthermore, reaction products such as C2H4 and C2H5OH are generated by light illumination alone.

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M3 - Article

AN - SCOPUS:84883190735

SN - 0021-4922

VL - 52

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 8 PART 2

M1 - 08JF07

ER -

Enhanced capability of photoelectrochemical CO₂ conversion system using an AlGaN/GaN photoelectrode

Abstract

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