High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide Constriction
Investigating the charge transport behavior in one-dimensional quantum confined system such as the localized states and interference effects due to the nanoscale grain boundaries and merged domains in wide chemical vapor deposition graphene constriction is highly desirable since it would help to rea...
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Series: | Journal of Nanomaterials |
Online Access: | http://dx.doi.org/10.1155/2016/1806871 |
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doaj-7725ddb81aa44f83b5756a614a3153d02020-11-24T23:24:05ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292016-01-01201610.1155/2016/18068711806871High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide ConstrictionChiashain Chuang0Tak-Pong Woo1Fan-Hung Liu2Masahiro Matsunaga3Yuichi Ochiai4Nobuyuki Aoki5Chi-Te Liang6Graduate School of Advanced Integration Science, Chiba University, Chiba 263-8522, JapanDepartment of Physics, National Taiwan University, Taipei 106, TaiwanGraduate Institute of Applied Physics, National Taiwan University, Taipei 106, TaiwanGraduate School of Advanced Integration Science, Chiba University, Chiba 263-8522, JapanGraduate School of Advanced Integration Science, Chiba University, Chiba 263-8522, JapanGraduate School of Advanced Integration Science, Chiba University, Chiba 263-8522, JapanDepartment of Physics, National Taiwan University, Taipei 106, TaiwanInvestigating the charge transport behavior in one-dimensional quantum confined system such as the localized states and interference effects due to the nanoscale grain boundaries and merged domains in wide chemical vapor deposition graphene constriction is highly desirable since it would help to realize industrial graphene-based electronic device applications. Our data suggests a crossover from interference coherent transport to carriers flushing into grain boundaries and merged domains when increasing the current. Moreover, many-body fermionic carriers with disordered system in our case can be statistically described by mean-field Gross-Pitaevskii equation via a single wave function by means of the quantum hydrodynamic approximation. The novel numerical simulation method supports the experimental results and suggests that the extreme high barrier potential regions on graphene from the grain boundaries and merged domains can be strongly affected by additional hot charges. Such interesting results could pave the way for quantum transport device by supplying additional hot current to flood into the grain boundaries and merged domains in one-dimensional quantum confined CVD graphene, a great advantage for developing graphene-based coherent electronic devices.http://dx.doi.org/10.1155/2016/1806871 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chiashain Chuang Tak-Pong Woo Fan-Hung Liu Masahiro Matsunaga Yuichi Ochiai Nobuyuki Aoki Chi-Te Liang |
spellingShingle |
Chiashain Chuang Tak-Pong Woo Fan-Hung Liu Masahiro Matsunaga Yuichi Ochiai Nobuyuki Aoki Chi-Te Liang High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide Constriction Journal of Nanomaterials |
author_facet |
Chiashain Chuang Tak-Pong Woo Fan-Hung Liu Masahiro Matsunaga Yuichi Ochiai Nobuyuki Aoki Chi-Te Liang |
author_sort |
Chiashain Chuang |
title |
High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide Constriction |
title_short |
High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide Constriction |
title_full |
High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide Constriction |
title_fullStr |
High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide Constriction |
title_full_unstemmed |
High Current-Induced Electron Redistribution in a CVD-Grown Graphene Wide Constriction |
title_sort |
high current-induced electron redistribution in a cvd-grown graphene wide constriction |
publisher |
Hindawi Limited |
series |
Journal of Nanomaterials |
issn |
1687-4110 1687-4129 |
publishDate |
2016-01-01 |
description |
Investigating the charge transport behavior in one-dimensional quantum confined system such as the localized states and interference effects due to the nanoscale grain boundaries and merged domains in wide chemical vapor deposition graphene constriction is highly desirable since it would help to realize industrial graphene-based electronic device applications. Our data suggests a crossover from interference coherent transport to carriers flushing into grain boundaries and merged domains when increasing the current. Moreover, many-body fermionic carriers with disordered system in our case can be statistically described by mean-field Gross-Pitaevskii equation via a single wave function by means of the quantum hydrodynamic approximation. The novel numerical simulation method supports the experimental results and suggests that the extreme high barrier potential regions on graphene from the grain boundaries and merged domains can be strongly affected by additional hot charges. Such interesting results could pave the way for quantum transport device by supplying additional hot current to flood into the grain boundaries and merged domains in one-dimensional quantum confined CVD graphene, a great advantage for developing graphene-based coherent electronic devices. |
url |
http://dx.doi.org/10.1155/2016/1806871 |
work_keys_str_mv |
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