Publication Type |
pre-print |
School or College |
College of Engineering |
Department |
Electrical & Computer Engineering |
Creator |
Rieth, Loren W |
Other Author |
Chappanda, Karumbaiah N.; Smith, York R.; Tathireddy, Prashant; Misra, Mano; Mohanty, Swomitra K. |
Title |
TiO2-WO3 composite nanotubes from co-sputtered thin films on si substrate for enhanced photoelectrochemical water splitting |
Date |
2014-01-01 |
Description |
Electrochemical anodization of a Ti-W nano-composite thin films deposited on a Si substrate by simultaneous magnetron sputtering of Ti and W resulted in the formation of TiO2-WO3 nanotubular arrays. A change in the morphology of TiO2-WO3 composite nanotubes with varying percentage of W in Ti-W composite thin films was observed. With a W density of less than or equal to 1.75 × 1019 W atoms per cm3 (after anodization), the morphology of the composite nanotubes were similar to that of plain TiO2 nanotubes. Whereas with further increase in W density resulted in a nanoporous morphology. Ti-W composite films were also deposited on Si substrates with a 100 nm thick layer of tin doped indium oxide (ITO) to examine the PEC activity of the formed oxide composites. The TiO2-WO3 composite nanotubes with 1.05 × 1019 W atoms per cm3 (3.15 × 1018 W atoms per cm3 before anodization) demonstrated to be an optimal W density for this system, giving rise to 40% increase in photocurrent at 0.5 V (vs. Ag/AgCl) compared to plain TiO2 nanotubes. |
Type |
Text |
Publisher |
Electrochemical Society |
Volume |
161 |
Issue |
9 |
First Page |
H431 |
Last Page |
H437 |
Language |
eng |
Bibliographic Citation |
Chappanda, K. N., Smith, Y. R., Rieth, L. W., Tathireddy, P., Misra, M., & Mohanty, S. K. (2014). TiO2-WO3 composite nanotubes from co-sputtered thin films on si substrate for enhanced photoelectrochemical water splitting. Journal of the Electrochemical Society, 161(9), H431-H437. |
Rights Management |
© The Electrochemical Society, Inc. 2014. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in [insert bibliographic information here]. |
Format Medium |
application/pdf |
Format Extent |
1,032,781 bytes |
Identifier |
uspace,18892 |
ARK |
ark:/87278/s6gr06wk |
Setname |
ir_uspace |
ID |
712661 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6gr06wk |