Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 28, Issue 11, Pages 1167-1169Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0360-3199(02)00280-X
Keywords
water electrolysis; photovoltaic; chip
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We fabricated a photovoltaic water electrolysis device in which whole electrolyzing parts were formed on one chip. This was made by attaching the Co-Mo and the Fe-Ni-O electrodes for hydrogen and oxygen evolution, respectively, on the a-Si solar cell. Water electrolysis could be conducted simply by dipping and irradiating the device in electrolyte. The device was durable for more than 18 h electrolysis by irradiation in the KOH electrolyte,at pH 13 at a conversion efficiency from solar to hydrogen energy of 2.5%. (C) 2003 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
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