Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source

A low energy ion source based on carbon nanotube (CNT) electron emitter was constructed for calibrating the ion-mode of mass spectrometer or other ion detectors. The field emission properties of CNT for CH4 were tested in the experiments. The field emission current increases along with the pressure...

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Autores principales:	Huzhong Zhang, Detian Li, Peter Wurz, Adrian Etter, Yongjun Cheng, Changkun Dong, Jinguo Ge, Zhuoya Ma
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Ion source Field emission Gas adsorption Carbon nanotube Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4
Acceso en línea:	https://doaj.org/article/190432aeb4014ccf8d24403e24083f6d
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id	oai:doaj.org-article:190432aeb4014ccf8d24403e24083f6d
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spelling	oai:doaj.org-article:190432aeb4014ccf8d24403e24083f6d2021-11-28T04:38:10ZEffects of methane on multi-wall carbon nanotube field emitter for a low energy ion source2665-917410.1016/j.measen.2021.100361https://doaj.org/article/190432aeb4014ccf8d24403e24083f6d2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S266591742100324Xhttps://doaj.org/toc/2665-9174A low energy ion source based on carbon nanotube (CNT) electron emitter was constructed for calibrating the ion-mode of mass spectrometer or other ion detectors. The field emission properties of CNT for CH4 were tested in the experiments. The field emission current increases along with the pressure rise of CH4 from 10−6 Pa to 10−4 Pa in a short time, but the degradation of field emission current was found in nearly 2 hours storage in CH4 with pressure of 10−4 Pa. While the CH4 was introduced as the operation gas in ion source, the maximum CH4+ ion current of 45 pA, and the sensitivity of 1.76 Pa−1 with the relative standard deviation (RSD) 4.9% could be obtained.Huzhong ZhangDetian LiPeter WurzAdrian EtterYongjun ChengChangkun DongJinguo GeZhuoya MaElsevierarticleIon sourceField emissionGas adsorptionCarbon nanotubeElectric apparatus and materials. Electric circuits. Electric networksTK452-454.4ENMeasurement: Sensors, Vol 18, Iss , Pp 100361- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ion source Field emission Gas adsorption Carbon nanotube Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4
spellingShingle	Ion source Field emission Gas adsorption Carbon nanotube Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4 Huzhong Zhang Detian Li Peter Wurz Adrian Etter Yongjun Cheng Changkun Dong Jinguo Ge Zhuoya Ma Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source
description	A low energy ion source based on carbon nanotube (CNT) electron emitter was constructed for calibrating the ion-mode of mass spectrometer or other ion detectors. The field emission properties of CNT for CH4 were tested in the experiments. The field emission current increases along with the pressure rise of CH4 from 10−6 Pa to 10−4 Pa in a short time, but the degradation of field emission current was found in nearly 2 hours storage in CH4 with pressure of 10−4 Pa. While the CH4 was introduced as the operation gas in ion source, the maximum CH4+ ion current of 45 pA, and the sensitivity of 1.76 Pa−1 with the relative standard deviation (RSD) 4.9% could be obtained.
format	article
author	Huzhong Zhang Detian Li Peter Wurz Adrian Etter Yongjun Cheng Changkun Dong Jinguo Ge Zhuoya Ma
author_facet	Huzhong Zhang Detian Li Peter Wurz Adrian Etter Yongjun Cheng Changkun Dong Jinguo Ge Zhuoya Ma
author_sort	Huzhong Zhang
title	Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source
title_short	Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source
title_full	Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source
title_fullStr	Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source
title_full_unstemmed	Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source
title_sort	effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/190432aeb4014ccf8d24403e24083f6d
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Effects of methane on multi-wall carbon nanotube field emitter for a low energy ion source

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