Tungsten oxide bilayer electrodes for photoelectrochemical cells

Title
Tungsten oxide bilayer electrodes for photoelectrochemical cells
Authors
유성종윤성욱성영은안광순
Keywords
photoelectrochemical reaction; O2 evolution; Tungsten oxide; Bilayer; Photoelectrochemical cell; Electrochemical reaction sites; Electrical pathways
Issue Date
2010-08
Publisher
Journal of power sources
Citation
VOL 195, NO 16, 5422-5425
Abstract
WO3 bilayer electrodes composed of WO3 top and bottom layers are designed for photoelectrochemical cells (PECs). The bottom layers are sputter-deposited at a high temperature (773 K) that leads to large grains and suitable electrical pathways for carrier collection. The top layer is deposited at a low temperature (573 K) and consists of small grains, which give rise to large electrochemical reaction sites. The bilayer electrodes give a significant enhancement in PEC performance compared with WO3 monolayer electrodes deposited at 573 or 773 K, because of a combination of favourable effects.
URI
http://pubs.kist.re.kr/handle/201004/37671
ISSN
0378-7753
Appears in Collections:
KIST Publication > Article
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