BROWSE
Detail
Journal Article
Semiconducting ZnO Nanofibers as Gas Sensors and Gas Response Improvement by SnO2 Coating
- Authors
- Jae Hyun Moon, Jin Ah Park, Su Jae Lee, Tae Hyoung Zyung
- Issue Date
- 2009-12
- Citation
- ETRI Journal, v.31 no.6, pp.636-641
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Project Code
- 09ZB1200, Future Technology Researches in the Fields of Informations and Telecommunications, Taehyoung Zyung
- Abstract
- ZnO nanofibers were electro-spun from a solution containing poly 4-vinyl phenol and Zn acetate dihydrate. The calcination process of the ZnO/PVP composite nanofibers brought forth a random network of polycrystalline w체rtzite ZnO nanofibers of 30 nm to 70 nm in diameter. The electrical properties of the ZnO nanofibers were governed by the grain boundaries. To investigate possible applications of the ZnO nanofibers, their CO and NO 2 gas sensing responses are demonstrated. In particular, the SnO 2-deposited ZnO nanofibers exhibit a remarkable gas sensing response to NO2 gas as low as 400 ppb. Oxide nanofibers emerge as a new proposition for oxide-based gas sensors. Copyright © 2009 ETRI.
- KSP Keywords
- 4-vinyl phenol(Poly), As 4, CO and NO, Calcination process, Composite nanofibers, Electro-spun, Gas response, Gas sensing response, SnO 2, ZnO nanofibers, electrical properties(I-V curve)