Cargando…

Maximizing the Field Emission Performance of Graphene Arrays

To design efficient and powerful field emission cathodes, the screening effect is of great importance and should be traded off between screening and emitter number. It has long been found that to achieve maximum emission efficiency in an array, neighboring emitters are at two or three times their he...

Descripción completa

Detalles Bibliográficos
Autores principales: Yang, Kaiqiang, Liu, Jianlong, Jiang, Ruirui, Gong, Yubing, Zeng, Baoqing, Yang, Jianjun, Chi, Feng, Liu, Liming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7599458/
https://www.ncbi.nlm.nih.gov/pubmed/33050566
http://dx.doi.org/10.3390/nano10102003
_version_ 1783602879320293376
author Yang, Kaiqiang
Liu, Jianlong
Jiang, Ruirui
Gong, Yubing
Zeng, Baoqing
Yang, Jianjun
Chi, Feng
Liu, Liming
author_facet Yang, Kaiqiang
Liu, Jianlong
Jiang, Ruirui
Gong, Yubing
Zeng, Baoqing
Yang, Jianjun
Chi, Feng
Liu, Liming
author_sort Yang, Kaiqiang
collection PubMed
description To design efficient and powerful field emission cathodes, the screening effect is of great importance and should be traded off between screening and emitter number. It has long been found that to achieve maximum emission efficiency in an array, neighboring emitters are at two or three times their height from each other. However, this is only true for one-dimensional emitters, such as carbon nanotubes, but for graphene, a two-dimensional material, it is different. In this work, we found that to achieve maximum emission efficiency in an array of graphene, the separation of the emitter is four times the height, and it is insensitive to the anode voltage and the distance between the cathode and the anode.
format Online
Article
Text
id pubmed-7599458
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-75994582020-11-01 Maximizing the Field Emission Performance of Graphene Arrays Yang, Kaiqiang Liu, Jianlong Jiang, Ruirui Gong, Yubing Zeng, Baoqing Yang, Jianjun Chi, Feng Liu, Liming Nanomaterials (Basel) Article To design efficient and powerful field emission cathodes, the screening effect is of great importance and should be traded off between screening and emitter number. It has long been found that to achieve maximum emission efficiency in an array, neighboring emitters are at two or three times their height from each other. However, this is only true for one-dimensional emitters, such as carbon nanotubes, but for graphene, a two-dimensional material, it is different. In this work, we found that to achieve maximum emission efficiency in an array of graphene, the separation of the emitter is four times the height, and it is insensitive to the anode voltage and the distance between the cathode and the anode. MDPI 2020-10-11 /pmc/articles/PMC7599458/ /pubmed/33050566 http://dx.doi.org/10.3390/nano10102003 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Kaiqiang
Liu, Jianlong
Jiang, Ruirui
Gong, Yubing
Zeng, Baoqing
Yang, Jianjun
Chi, Feng
Liu, Liming
Maximizing the Field Emission Performance of Graphene Arrays
title Maximizing the Field Emission Performance of Graphene Arrays
title_full Maximizing the Field Emission Performance of Graphene Arrays
title_fullStr Maximizing the Field Emission Performance of Graphene Arrays
title_full_unstemmed Maximizing the Field Emission Performance of Graphene Arrays
title_short Maximizing the Field Emission Performance of Graphene Arrays
title_sort maximizing the field emission performance of graphene arrays
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7599458/
https://www.ncbi.nlm.nih.gov/pubmed/33050566
http://dx.doi.org/10.3390/nano10102003
work_keys_str_mv AT yangkaiqiang maximizingthefieldemissionperformanceofgraphenearrays
AT liujianlong maximizingthefieldemissionperformanceofgraphenearrays
AT jiangruirui maximizingthefieldemissionperformanceofgraphenearrays
AT gongyubing maximizingthefieldemissionperformanceofgraphenearrays
AT zengbaoqing maximizingthefieldemissionperformanceofgraphenearrays
AT yangjianjun maximizingthefieldemissionperformanceofgraphenearrays
AT chifeng maximizingthefieldemissionperformanceofgraphenearrays
AT liuliming maximizingthefieldemissionperformanceofgraphenearrays