The adsorption state and the evolution of field emission properties of graphene edges at different temperatures

We have studied the effects of adsorbates on the field emission (FE) properties of graphene edges at different temperatures using Joule heating. Using infrared imaging and spectral fitting, the temperature from room temperature to about 1000 K was measured accurately. It was found that adsorption in...

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Detalles Bibliográficos
Autores principales: Jiang, Lijuan, Liu, Peng, Zhang, Lina, Liu, Changhong, Zhang, Liwei, Fan, Shoushan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085749/
https://www.ncbi.nlm.nih.gov/pubmed/35547526
http://dx.doi.org/10.1039/c8ra04705g
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author Jiang, Lijuan
Liu, Peng
Zhang, Lina
Liu, Changhong
Zhang, Liwei
Fan, Shoushan
author_facet Jiang, Lijuan
Liu, Peng
Zhang, Lina
Liu, Changhong
Zhang, Liwei
Fan, Shoushan
author_sort Jiang, Lijuan
collection PubMed
description We have studied the effects of adsorbates on the field emission (FE) properties of graphene edges at different temperatures using Joule heating. Using infrared imaging and spectral fitting, the temperature from room temperature to about 1000 K was measured accurately. It was found that adsorption induces the deviation of graphene edge field emission from the Fowler–Nordheim law and the noise of the field emission. The adsorbates are gradually desorbed with an increase in temperature, and are almost completely desorbed above about 500 K. The FE of graphene edges without adsorption is fairly consistent with the FN theory.
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spelling pubmed-90857492022-05-10 The adsorption state and the evolution of field emission properties of graphene edges at different temperatures Jiang, Lijuan Liu, Peng Zhang, Lina Liu, Changhong Zhang, Liwei Fan, Shoushan RSC Adv Chemistry We have studied the effects of adsorbates on the field emission (FE) properties of graphene edges at different temperatures using Joule heating. Using infrared imaging and spectral fitting, the temperature from room temperature to about 1000 K was measured accurately. It was found that adsorption induces the deviation of graphene edge field emission from the Fowler–Nordheim law and the noise of the field emission. The adsorbates are gradually desorbed with an increase in temperature, and are almost completely desorbed above about 500 K. The FE of graphene edges without adsorption is fairly consistent with the FN theory. The Royal Society of Chemistry 2018-09-12 /pmc/articles/PMC9085749/ /pubmed/35547526 http://dx.doi.org/10.1039/c8ra04705g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Jiang, Lijuan
Liu, Peng
Zhang, Lina
Liu, Changhong
Zhang, Liwei
Fan, Shoushan
The adsorption state and the evolution of field emission properties of graphene edges at different temperatures
title The adsorption state and the evolution of field emission properties of graphene edges at different temperatures
title_full The adsorption state and the evolution of field emission properties of graphene edges at different temperatures
title_fullStr The adsorption state and the evolution of field emission properties of graphene edges at different temperatures
title_full_unstemmed The adsorption state and the evolution of field emission properties of graphene edges at different temperatures
title_short The adsorption state and the evolution of field emission properties of graphene edges at different temperatures
title_sort adsorption state and the evolution of field emission properties of graphene edges at different temperatures
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085749/
https://www.ncbi.nlm.nih.gov/pubmed/35547526
http://dx.doi.org/10.1039/c8ra04705g
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