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Title: Solar fuels production by artificial photosynthesis

A practical method to use sunlight to generate storable chemical energy could dramatically change the landscape of global energy generation. One of the fundamental requirements of such an “artificial photosynthesis” scheme is a light capture and conversion approach capable of generating the required chemical potentials (e.g. >1.23 V for splitting water into H{sub 2} and O{sub 2}). An approach based on inorganic light absorbers coupled directly to oxidation and reduction catalysts is being developed in the Joint Center for Artificial Photosynthesis (JCAP). P-type III-V semiconductors with a high surface area can be used as high current density photocathodes. The longevity under operation of these photocathodes can be improved by the use of conformal metal oxides deposited by atomic layer deposition.
Authors:
 [1] ;  [2] ;  [3]
  1. Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA (United States)
  2. Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA and Department of Applied Chemistry, Kyung Hee University (Korea, Republic of)
  3. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA and Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, 94720 (United States)
Publication Date:
OSTI Identifier:
22261738
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1568; Journal Issue: 1; Conference: International workshop on solar-chemical energy storage (SolChES), Sendai (Japan), 23-28 Jul 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 60 APPLIED LIFE SCIENCES; CATALYSTS; CURRENT DENSITY; DEPOSITS; OXIDATION; OXIDES; PHOTOCATHODES; PHOTOSYNTHESIS; SEMICONDUCTOR MATERIALS; SURFACE AREA