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Imogolite as an electron emitter and a water sensor

Authors
Oh, JihoonChang, SunyoungJang, JiyoungRoh, SeungkwangPark, JaehongLee, JungwooSohn, DaewonYi, WhikunJung, YeongriKim, Sung-Jin
Issue Date
Aug-2007
Publisher
SPRINGER
Citation
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v.18, no.8, pp.893 - 897
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume
18
Number
8
Start Page
893
End Page
897
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/179773
DOI
10.1007/s10854-007-9125-8
ISSN
0957-4522
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/mu m. 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.
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