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Imogolite as an electron emitter and a water sensor

Title
Imogolite as an electron emitter and a water sensor
Authors
Oh J.Chang S.Jang J.Roh S.Park J.Lee J.Sohn D.Yi W.Jung Y.Kim S.-J.
Ewha Authors
김성진
SCOPUS Author ID
김성진scopus
Issue Date
2007
Journal Title
Journal of Materials Science: Materials in Electronics
ISSN
0957-4522JCR Link
Citation
vol. 18, no. 8, pp. 893 - 897
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We investigated field emission (FE) properties of imogolite including the turn-on field and lifetime stability. Imogolite is an excellent electron emitter with a turn-on field of approximately 2.5-3.5 V/μm. A lifetime test revealed that imogolite protects itself during FE under exposure to O 2 gas. We also measured the current-voltage characteristics of the imogolite as a function of the amount of water adsorbed on the surface. The results suggested that the electrode-containing imogolite device could be a useful water sensor in a nanoscale environment. © Springer Science+Business Media, LLC 2007.
DOI
10.1007/s10854-007-9125-8
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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