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Giant humidity dependence of conductivity in a single exfoliated titania nanosheet.

Giant humidity dependence of conductivity in a single exfoliated titania nanosheet.

Authors :
Ayaka Tanaka
Kazuto Hatakeyama
Azusa Oku
Koji Matsuzaki
Natsumi Saitou
Hiroyuki Yokoi
Takaaki Taniguchi
Yasumichi Matsumoto
Masahiro Hara
Source :
Applied Physics Letters. 4/21/2014, Vol. 104 Issue 16, p1-3. 3p. 1 Black and White Photograph, 3 Graphs.
Publication Year :
2014

Abstract

We have investigated an in-plane electrical transport in an individual titania nanosheet, which forms a lepidocrocite structure with a few atomic layer thickness. The conductivity in the titania nanosheet varied five orders for the change of the relative humidity from 45% to 95%. The drastic change in the conductivity is due to a sensitive response with respect to water molecules adsorbed on the surface of the two-dimensional nanosheet. The results may open an avenue for nanodevices built from various oxide nanosheets. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00036951
Volume :
104
Issue :
16
Database :
Academic Search Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
95775793
Full Text :
https://doi.org/10.1063/1.4872469