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Oxygen Re-adsorption of a Single ZnO Nanobridge by Joule Heating under Ultraviolet Illumination
- Authors
- Yoon, Sanghwa; Lim, Jae-Hong; Yoo, Bongyoung
- Issue Date
- Oct-2012
- Publisher
- Japan Soc of Applied Physics
- Keywords
- ROOM-TEMPERATURE; FILMS; PHOTODETECTORS
- Citation
- Applied Physics Express, v.5, no.10, pp 105003-1 - 105003-3
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Applied Physics Express
- Volume
- 5
- Number
- 10
- Start Page
- 105003-1
- End Page
- 105003-3
- ISSN
- 1882-0778
1882-0786
- Abstract
- Joule heating in ZnO nanowires is known to enhance surface reactions, including oxidation and reduction. The UV sensing behaviors of ZnO nanobridges were investigated in air and Ar ambient to study the effects of Joule heating caused by the absorption of oxygen molecules. When placed under UV illumination in air ambient, the conductance of the ZnO nanobridge decreased over a specific voltage range, while the conductance increased under similar conditions when placed in Ar ambient. Our results suggest a model of oxygen molecule absorption behaviors that is facilitated through the incorporation of Joule heating. (C) 2012 The Japan Society of Applied Physics
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Related Researcher
- Yoo, Bong young
- ERICA 첨단융합대학 (ERICA 신소재·반도체공학전공)