Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1284944 | Journal of Power Sources | 2010 | 4 Pages |
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.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Sung Jong Yoo, Seong Uk Yun, Yung-Eun Sung, Kwang-Soon Ahn,