Photoelectrochemical CO2Conversion to Hydrocarbons Using an AlGaN/GaN-Si Tandem Photoelectrode-Reference-Cited by-同舟云学术

Photoelectrochemical CO2Conversion to Hydrocarbons Using an AlGaN/GaN-Si Tandem Photoelectrode

Published:2015 Issue: Volume:2015 Page:1-4
ISSN:1687-8108
Container-title:Advances in Condensed Matter Physics
language:en
Short-container-title:Advances in Condensed Matter Physics

Author:

Deguchi Masahiro¹,Yotsuhashi Satoshi¹,Yamada Yuka¹,Ohkawa Kazuhiro²

Affiliation:

1. Advanced Research Division, Panasonic Corporation, Seika, Kyoto 619-0237, Japan

2. Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan

Abstract

We report on a qualitatively improved photoelectrochemical CO2reduction system which makes it possible to convert CO2into hydrocarbons. The key is the tandem photoelectrode, which consists of AlGaN/GaN and Si device with p-n junction. The Si device is located on the back of AlGaN/GaN structure and acts as activation layer that raises cathode potential. Use of a Cu cathode results in change of the main reaction products from CO and HCOOH to hydrocarbons such as CH4and C2H4. The energy conversion efficiency to hydrocarbons from CO2is estimated to be 0.046% under irradiation with concentrated solar light.

Publisher

Hindawi Limited

Subject

Condensed Matter Physics

Link

http://downloads.hindawi.com/journals/acmp/2015/537860.pdf

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