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Title: Giant humidity dependence of conductivity in a single exfoliated titania nanosheet

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.

Authors:
; ; ; ;  [1]; ; ; ;  [1]
  1. Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555 (Japan)
Publication Date:
OSTI Identifier:
22262558
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 104; Journal Issue: 16; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRIC CONDUCTIVITY; HUMIDITY; NANOSTRUCTURES; THICKNESS; TITANIUM OXIDES

Citation Formats

Tanaka, Ayaka, Hatakeyama, Kazuto, Oku, Azusa, Matsuzaki, Koji, Saitou, Natsumi, Yokoi, Hiroyuki, Taniguchi, Takaaki, Matsumoto, Yasumichi, Hara, Masahiro, and JST, CREST, K's Gobancho 6F, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076. Giant humidity dependence of conductivity in a single exfoliated titania nanosheet. United States: N. p., 2014. Web. doi:10.1063/1.4872469.
Tanaka, Ayaka, Hatakeyama, Kazuto, Oku, Azusa, Matsuzaki, Koji, Saitou, Natsumi, Yokoi, Hiroyuki, Taniguchi, Takaaki, Matsumoto, Yasumichi, Hara, Masahiro, & JST, CREST, K's Gobancho 6F, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076. Giant humidity dependence of conductivity in a single exfoliated titania nanosheet. United States. https://doi.org/10.1063/1.4872469
Tanaka, Ayaka, Hatakeyama, Kazuto, Oku, Azusa, Matsuzaki, Koji, Saitou, Natsumi, Yokoi, Hiroyuki, Taniguchi, Takaaki, Matsumoto, Yasumichi, Hara, Masahiro, and JST, CREST, K's Gobancho 6F, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076. 2014. "Giant humidity dependence of conductivity in a single exfoliated titania nanosheet". United States. https://doi.org/10.1063/1.4872469.
@article{osti_22262558,
title = {Giant humidity dependence of conductivity in a single exfoliated titania nanosheet},
author = {Tanaka, Ayaka and Hatakeyama, Kazuto and Oku, Azusa and Matsuzaki, Koji and Saitou, Natsumi and Yokoi, Hiroyuki and Taniguchi, Takaaki and Matsumoto, Yasumichi and Hara, Masahiro and JST, CREST, K's Gobancho 6F, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076},
abstractNote = {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.},
doi = {10.1063/1.4872469},
url = {https://www.osti.gov/biblio/22262558}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 16,
volume = 104,
place = {United States},
year = {Mon Apr 21 00:00:00 EDT 2014},
month = {Mon Apr 21 00:00:00 EDT 2014}
}