Finite-size effects on thermionic emission in metalgraphene-nanoribbon contacts

Ling Feng Mao; X. J. Li; C. Y. Zhu; Z. O. Wang; Z. H. Lu; J. F. Yang; H. W. Zhu; Y. S. Liu; J. Y. Wang

doi:10.1109/LED.2010.2043639

Finite-size effects on thermionic emission in metalgraphene-nanoribbon contacts

Ling Feng Mao^*, X. J. Li, C. Y. Zhu, Z. O. Wang, Z. H. Lu, J. F. Yang, H. W. Zhu, Y. S. Liu, J. Y. Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A finite-size effect leads to more electrons to occupy high-energy states in a graphene nanoribbon. Therefore, the thermionic-emission (TE) current density of a metal/graphene nanoribbon changes with its width when the graphene nanoribbon is a semiconductor. This letter demonstrates that the TE current density increases rapidly with the decreasing width of the graphene nanoribbon. It is also found that the finite-size effect on TE current density is more significant at low temperatures.

Original language	English
Article number	5437261
Pages (from-to)	491-493
Number of pages	3
Journal	IEEE Electron Device Letters
Volume	31
Issue number	5
DOIs	https://doi.org/10.1109/LED.2010.2043639
Publication status	Published - May 2010

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title = "Finite-size effects on thermionic emission in metalgraphene-nanoribbon contacts",

abstract = "A finite-size effect leads to more electrons to occupy high-energy states in a graphene nanoribbon. Therefore, the thermionic-emission (TE) current density of a metal/graphene nanoribbon changes with its width when the graphene nanoribbon is a semiconductor. This letter demonstrates that the TE current density increases rapidly with the decreasing width of the graphene nanoribbon. It is also found that the finite-size effect on TE current density is more significant at low temperatures.",

keywords = "Finite-size effect, Graphene nanoribbon, Metal/semiconductor contact, Thermionic emission (TE)",

author = "Mao, {Ling Feng} and Li, {X. J.} and Zhu, {C. Y.} and Wang, {Z. O.} and Lu, {Z. H.} and Yang, {J. F.} and Zhu, {H. W.} and Liu, {Y. S.} and Wang, {J. Y.}",

year = "2010",

month = may,

doi = "10.1109/LED.2010.2043639",

language = "English",

volume = "31",

pages = "491--493",

journal = "IEEE Electron Device Letters",

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T1 - Finite-size effects on thermionic emission in metalgraphene-nanoribbon contacts

AU - Mao, Ling Feng

AU - Li, X. J.

AU - Zhu, C. Y.

AU - Wang, Z. O.

AU - Lu, Z. H.

AU - Yang, J. F.

AU - Zhu, H. W.

AU - Liu, Y. S.

AU - Wang, J. Y.

PY - 2010/5

Y1 - 2010/5

N2 - A finite-size effect leads to more electrons to occupy high-energy states in a graphene nanoribbon. Therefore, the thermionic-emission (TE) current density of a metal/graphene nanoribbon changes with its width when the graphene nanoribbon is a semiconductor. This letter demonstrates that the TE current density increases rapidly with the decreasing width of the graphene nanoribbon. It is also found that the finite-size effect on TE current density is more significant at low temperatures.

AB - A finite-size effect leads to more electrons to occupy high-energy states in a graphene nanoribbon. Therefore, the thermionic-emission (TE) current density of a metal/graphene nanoribbon changes with its width when the graphene nanoribbon is a semiconductor. This letter demonstrates that the TE current density increases rapidly with the decreasing width of the graphene nanoribbon. It is also found that the finite-size effect on TE current density is more significant at low temperatures.

KW - Finite-size effect

KW - Graphene nanoribbon

KW - Metal/semiconductor contact

KW - Thermionic emission (TE)

UR - http://www.scopus.com/inward/record.url?scp=77951879721&partnerID=8YFLogxK

U2 - 10.1109/LED.2010.2043639

DO - 10.1109/LED.2010.2043639

M3 - Article

SN - 0741-3106

VL - 31

SP - 491

EP - 493

JO - IEEE Electron Device Letters

JF - IEEE Electron Device Letters

IS - 5

M1 - 5437261

ER -

Finite-size effects on thermionic emission in metalgraphene-nanoribbon contacts

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