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Electronic transport characteristics of electrolyte-gated conducting polyaniline nanowire field-effect transistors

Authors
Lee, Seung-YongChoi, Gyoung-RinLim, HyuneuiLee, Kyung-MiLee, Sang-Kwon
Issue Date
6-7월-2009
Publisher
AMER INST PHYSICS
Keywords
FILMS; POLYMERS; DEVICES; SENSOR
Citation
APPLIED PHYSICS LETTERS, v.95, no.1
Indexed
SCIE
SCOPUS
Journal Title
APPLIED PHYSICS LETTERS
Volume
95
Number
1
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119680
DOI
10.1063/1.3176444
ISSN
0003-6951
Abstract
We investigate the electronic transport characteristics of an electrolyte-gated conducting polyaniline (PANI) nanowire field-effect transistor (FET) assembled between two Au electrodes on SiO2/Si substrate using nanochannel-assisted chemical oxidative polymerization. This is the first demonstration that the current-voltage characteristics for a PANI nanowire FET exhibit significant hysteresis, which is typically greater on the positive sweep of the potential than on the negative sweep. We suggest that this hysteresis is due to changes in the PANI structure and the effects of Coulombic repulsion in PANI nanowires on oxidation process. We also present degradation properties of PANI nanowire FETs with electrochemical gate potential. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3176444]
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