Enhanced Capability of Photoelectrochemical CO2 Conversion System Using an AlGaN/GaN Photoelectrode

被引：25
|
作者：
Deguchi, Masahiro [1 ]
Yotsuhashi, Satoshi [1 ]
Hashiba, Hiroshi [1 ]
Yamada, Yuka [1 ]
Ohkawa, Kazuhiro [2 ]
机构：
[1] Panasonic Corp, Adv Technol Res Lab, Seika, Kyoto 6190237, Japan
[2] Tokyo Univ Sci, Dept Appl Phys, Shinjuku Ku, Tokyo 1628601, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2013年 / 52卷 / 08期
关键词：
ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE; PHOTOCATALYTIC CONVERSION; COPPER ELECTRODE; HYDROGEN GAS; SOLAR FUELS; WATER; HYDROCARBONS; OXIDATION;
D O I：
10.7567/JJAP.52.08JF07
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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. (C) 2013 The Japan Society of Applied Physics
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页数：5
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