Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification

The paper presents results of study of the SnO2 nanowire chemoresistor treatment by means of low-energy Ne ion-beam bombardment. SnO2 nanowires were obtained by means of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via...

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Autor principal:	Dmitriev, Serghei
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2008
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/63e904973c4b4ba6a51bb325922a43d7
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spelling	oai:doaj.org-article:63e904973c4b4ba6a51bb325922a43d72021-11-21T12:06:17ZLow-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification2537-63651810-648Xhttps://doaj.org/article/63e904973c4b4ba6a51bb325922a43d72008-10-01T00:00:00Zhttps://mjps.nanotech.md/archive/2008/article/3949https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365The paper presents results of study of the SnO2 nanowire chemoresistor treatment by means of low-energy Ne ion-beam bombardment. SnO2 nanowires were obtained by means of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via consequent PVD deposition through the shadow mask under high vacuum conditions. Current versus voltage characteristics were measured in the range -10 to 10 volts both in high vacuum (P = 1x10-6 Torr) and in the oxygen presence (1x10-4 Torr). Cleaning and modification of nanostructure surface in situ was performed through the series of Ne bombardment cycles at the 275°C and Ne partial pressure PNe = 1x10-6 Torr. Established experimentally optimal Ne ion current has amounted to 1.15x10-4 A. Electrical conductance and gas sensing performance changing due to the NW interaction with ion beam were used to control ion bombardment effect. It was established that conductivity is increased by two orders and superficially modified NW response to hydrogen with oxygen background is also higher. Dmitriev, SergheiD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 7, Iss 4, Pp 466-470 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Dmitriev, Serghei Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification
description	The paper presents results of study of the SnO2 nanowire chemoresistor treatment by means of low-energy Ne ion-beam bombardment. SnO2 nanowires were obtained by means of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via consequent PVD deposition through the shadow mask under high vacuum conditions. Current versus voltage characteristics were measured in the range -10 to 10 volts both in high vacuum (P = 1x10-6 Torr) and in the oxygen presence (1x10-4 Torr). Cleaning and modification of nanostructure surface in situ was performed through the series of Ne bombardment cycles at the 275°C and Ne partial pressure PNe = 1x10-6 Torr. Established experimentally optimal Ne ion current has amounted to 1.15x10-4 A. Electrical conductance and gas sensing performance changing due to the NW interaction with ion beam were used to control ion bombardment effect. It was established that conductivity is increased by two orders and superficially modified NW response to hydrogen with oxygen background is also higher.
format	article
author	Dmitriev, Serghei
author_facet	Dmitriev, Serghei
author_sort	Dmitriev, Serghei
title	Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification
title_short	Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification
title_full	Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification
title_fullStr	Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification
title_full_unstemmed	Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification
title_sort	low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2008
url	https://doaj.org/article/63e904973c4b4ba6a51bb325922a43d7
work_keys_str_mv	AT dmitrievserghei lowenergyionbeambombardmentformetaloxidenanowiresurfacecleaningandmodification
_version_	1718419248083107840

Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification

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