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Gate tunable nonlinear rectification effects in three-terminal graphene nanojunctions

Zhu, R. J.; Huang, Y. Q.; Kang, N. and Xu, Hongqi LU (2014) In Nanoscale 6(9). p.4527-4531
Abstract
We report on a study of the room-temperature nonlinear charge transport properties of three-terminal junction devices made from graphene. We demonstrate that the graphene three terminal junction devices show a rectification characteristic, namely, when voltages V-L V and V-R -V are applied to the left and the right terminal in a push-pull configuration, the voltage output from the central terminal VC is finite and is scaled approximately with V-2. The rectification coefficient can be effectively tuned by a gate voltage and shows a transport carrier polarity dependence. We further show that the nonlinear charge transport characteristics can be used to probe the electronic structure of graphene nanostructures and to study the... (More)
We report on a study of the room-temperature nonlinear charge transport properties of three-terminal junction devices made from graphene. We demonstrate that the graphene three terminal junction devices show a rectification characteristic, namely, when voltages V-L V and V-R -V are applied to the left and the right terminal in a push-pull configuration, the voltage output from the central terminal VC is finite and is scaled approximately with V-2. The rectification coefficient can be effectively tuned by a gate voltage and shows a transport carrier polarity dependence. We further show that the nonlinear charge transport characteristics can be used to probe the electronic structure of graphene nanostructures and to study the thermoelectrical power of graphene. These results show that the graphene three-terminal junction devices could be used as novel building blocks for nanoelectronics and as novel devices for the study of the material properties of graphene on the nanoscale. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nanoscale
volume
6
issue
9
pages
4527 - 4531
publisher
Royal Society of Chemistry
external identifiers
  • wos:000334855500014
  • scopus:84898632808
ISSN
2040-3372
DOI
10.1039/c3nr06404b
language
English
LU publication?
yes
id
b1f5afc1-3772-46c6-b7c9-9a745b4909b8 (old id 4496167)
date added to LUP
2014-06-23 12:28:20
date last changed
2017-10-22 03:21:35
@article{b1f5afc1-3772-46c6-b7c9-9a745b4909b8,
  abstract     = {We report on a study of the room-temperature nonlinear charge transport properties of three-terminal junction devices made from graphene. We demonstrate that the graphene three terminal junction devices show a rectification characteristic, namely, when voltages V-L V and V-R -V are applied to the left and the right terminal in a push-pull configuration, the voltage output from the central terminal VC is finite and is scaled approximately with V-2. The rectification coefficient can be effectively tuned by a gate voltage and shows a transport carrier polarity dependence. We further show that the nonlinear charge transport characteristics can be used to probe the electronic structure of graphene nanostructures and to study the thermoelectrical power of graphene. These results show that the graphene three-terminal junction devices could be used as novel building blocks for nanoelectronics and as novel devices for the study of the material properties of graphene on the nanoscale.},
  author       = {Zhu, R. J. and Huang, Y. Q. and Kang, N. and Xu, Hongqi},
  issn         = {2040-3372},
  language     = {eng},
  number       = {9},
  pages        = {4527--4531},
  publisher    = {Royal Society of Chemistry},
  series       = {Nanoscale},
  title        = {Gate tunable nonlinear rectification effects in three-terminal graphene nanojunctions},
  url          = {http://dx.doi.org/10.1039/c3nr06404b},
  volume       = {6},
  year         = {2014},
}