Novel field emission from graphene sheets supported by CNTs arrays

Ke Qu; Xiaobing Zhang; Yan Zhang; Chi Li; Matthew T. Cole; Ning Zhao; Chenyan Shi; Shuyi Ding; Kai Ying; Wei Lei; Baoping Wang; William I. Milne

doi:10.1109/IVEC.2013.6570956

Novel field emission from graphene sheets supported by CNTs arrays

Ke Qu, Xiaobing Zhang, Yan Zhang, Chi Li, Matthew T. Cole, Ning Zhao, Chenyan Shi, Shuyi Ding, Kai Ying, Wei Lei, Baoping Wang, William I. Milne

Department of Electronic & Electrical Engineering

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Abstract

A good quality graphene is transferred onto honeycomb-like CNTs arrays with inner supporting CNTs. The efficient field emission is demonstrated due to a high aspect ratio protrusions and graphene crack edges. A high efficient current density about 1.2 mA/cm² at threshold electric field of 7.8 V/μm with a turn-on electric field of 1.8 V/μm at the current density of 10 μA/cm² is observed due to high localized electric field. Stable field emission is tested in a vacuum chamber. The results are of significance to the development of Graphene based field emitters.

Original language	English
Title of host publication	14th IEEE International Vacuum Electronics Conference, IVEC 2013 - Proceedings
DOIs	https://doi.org/10.1109/IVEC.2013.6570956
Publication status	Published - 2013
Event	14th IEEE International Vacuum Electronics Conference, IVEC 2013 - Paris, France Duration: 21 May 2013 → 23 May 2013

Conference

Conference	14th IEEE International Vacuum Electronics Conference, IVEC 2013
Country/Territory	France
City	Paris
Period	21/05/13 → 23/05/13

Keywords

carbon nanotubes
field emission
graphene

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/IVEC.2013.6570956

Cite this

Qu, K, Zhang, X, Zhang, Y, Li, C, Cole, MT, Zhao, N, Shi, C, Ding, S, Ying, K, Lei, W, Wang, B & Milne, WI 2013, Novel field emission from graphene sheets supported by CNTs arrays. in 14th IEEE International Vacuum Electronics Conference, IVEC 2013 - Proceedings., 6570956, 14th IEEE International Vacuum Electronics Conference, IVEC 2013, Paris, France, 21/05/13. https://doi.org/10.1109/IVEC.2013.6570956

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title = "Novel field emission from graphene sheets supported by CNTs arrays",

abstract = "A good quality graphene is transferred onto honeycomb-like CNTs arrays with inner supporting CNTs. The efficient field emission is demonstrated due to a high aspect ratio protrusions and graphene crack edges. A high efficient current density about 1.2 mA/cm2 at threshold electric field of 7.8 V/μm with a turn-on electric field of 1.8 V/μm at the current density of 10 μA/cm2 is observed due to high localized electric field. Stable field emission is tested in a vacuum chamber. The results are of significance to the development of Graphene based field emitters.",

keywords = "carbon nanotubes, field emission, graphene",

author = "Ke Qu and Xiaobing Zhang and Yan Zhang and Chi Li and Cole, {Matthew T.} and Ning Zhao and Chenyan Shi and Shuyi Ding and Kai Ying and Wei Lei and Baoping Wang and Milne, {William I.}",

year = "2013",

doi = "10.1109/IVEC.2013.6570956",

language = "English",

isbn = "9781467359757",

booktitle = "14th IEEE International Vacuum Electronics Conference, IVEC 2013 - Proceedings",

note = "14th IEEE International Vacuum Electronics Conference, IVEC 2013 ; Conference date: 21-05-2013 Through 23-05-2013",

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TY - GEN

T1 - Novel field emission from graphene sheets supported by CNTs arrays

AU - Qu, Ke

AU - Zhang, Xiaobing

AU - Zhang, Yan

AU - Li, Chi

AU - Cole, Matthew T.

AU - Zhao, Ning

AU - Shi, Chenyan

AU - Ding, Shuyi

AU - Ying, Kai

AU - Lei, Wei

AU - Wang, Baoping

AU - Milne, William I.

PY - 2013

Y1 - 2013

N2 - A good quality graphene is transferred onto honeycomb-like CNTs arrays with inner supporting CNTs. The efficient field emission is demonstrated due to a high aspect ratio protrusions and graphene crack edges. A high efficient current density about 1.2 mA/cm2 at threshold electric field of 7.8 V/μm with a turn-on electric field of 1.8 V/μm at the current density of 10 μA/cm2 is observed due to high localized electric field. Stable field emission is tested in a vacuum chamber. The results are of significance to the development of Graphene based field emitters.

AB - A good quality graphene is transferred onto honeycomb-like CNTs arrays with inner supporting CNTs. The efficient field emission is demonstrated due to a high aspect ratio protrusions and graphene crack edges. A high efficient current density about 1.2 mA/cm2 at threshold electric field of 7.8 V/μm with a turn-on electric field of 1.8 V/μm at the current density of 10 μA/cm2 is observed due to high localized electric field. Stable field emission is tested in a vacuum chamber. The results are of significance to the development of Graphene based field emitters.

KW - carbon nanotubes

KW - field emission

KW - graphene

UR - http://www.scopus.com/inward/record.url?scp=84883339338&partnerID=8YFLogxK

U2 - 10.1109/IVEC.2013.6570956

DO - 10.1109/IVEC.2013.6570956

M3 - Chapter in a published conference proceeding

AN - SCOPUS:84883339338

SN - 9781467359757

BT - 14th IEEE International Vacuum Electronics Conference, IVEC 2013 - Proceedings

T2 - 14th IEEE International Vacuum Electronics Conference, IVEC 2013

Y2 - 21 May 2013 through 23 May 2013

ER -

Novel field emission from graphene sheets supported by CNTs arrays

Abstract

Conference

Keywords

ASJC Scopus subject areas

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