Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation

The SnO2/CNT composites were prepared by microwave-assisted wet impregnation at 60°C. The process was optimized by varying the microwave power and reaction time. Raman analysis showed the typical features of the rutile phase of as-synthesized SnO2 nanoparticles on CNTs, which was consistent with the...

Full description

Bibliographic Details
Main Authors:	Sreejarani K. Pillai, Sarah C. Motshekga, Suprakas Sinha Ray, John Kennedy
Format:	Article
Language:	English
Published:	Hindawi Limited 2012-01-01
Series:	Journal of Nanomaterials
Online Access:	http://dx.doi.org/10.1155/2012/861591

id	doaj-a6929dcf7c464e079c471a268f52f431
record_format	Article
spelling	doaj-a6929dcf7c464e079c471a268f52f4312020-11-24T23:41:36ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292012-01-01201210.1155/2012/861591861591Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet ImpregnationSreejarani K. Pillai0Sarah C. Motshekga1Suprakas Sinha Ray2John Kennedy3DST/CSIR Nanotechnology Innovation Centre, National Centre for Nano-Structured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South AfricaDST/CSIR Nanotechnology Innovation Centre, National Centre for Nano-Structured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South AfricaDST/CSIR Nanotechnology Innovation Centre, National Centre for Nano-Structured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South AfricaNational Isotope Centre, GNS Science, 30 Gracefield Road, Lower Hutt 5010, New ZealandThe SnO2/CNT composites were prepared by microwave-assisted wet impregnation at 60°C. The process was optimized by varying the microwave power and reaction time. Raman analysis showed the typical features of the rutile phase of as-synthesized SnO2 nanoparticles on CNTs, which was consistent with the results from X-ray diffraction. Enhanced field emission performance was observed for SnO2/CNTs composite prepared by a microwave method when compared to pure CNTs and SnO2/CNTs composite prepared by conventional wet impregnation. The dependence of emission current density on the electric field followed a Fowler-Nordheim relationship.http://dx.doi.org/10.1155/2012/861591
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Sreejarani K. Pillai Sarah C. Motshekga Suprakas Sinha Ray John Kennedy
spellingShingle	Sreejarani K. Pillai Sarah C. Motshekga Suprakas Sinha Ray John Kennedy Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation Journal of Nanomaterials
author_facet	Sreejarani K. Pillai Sarah C. Motshekga Suprakas Sinha Ray John Kennedy
author_sort	Sreejarani K. Pillai
title	Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation
title_short	Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation
title_full	Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation
title_fullStr	Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation
title_full_unstemmed	Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation
title_sort	field emission characteristics of sno2/cnts composites prepared by microwave-assisted wet impregnation
publisher	Hindawi Limited
series	Journal of Nanomaterials
issn	1687-4110 1687-4129
publishDate	2012-01-01
description	The SnO2/CNT composites were prepared by microwave-assisted wet impregnation at 60°C. The process was optimized by varying the microwave power and reaction time. Raman analysis showed the typical features of the rutile phase of as-synthesized SnO2 nanoparticles on CNTs, which was consistent with the results from X-ray diffraction. Enhanced field emission performance was observed for SnO2/CNTs composite prepared by a microwave method when compared to pure CNTs and SnO2/CNTs composite prepared by conventional wet impregnation. The dependence of emission current density on the electric field followed a Fowler-Nordheim relationship.
url	http://dx.doi.org/10.1155/2012/861591
work_keys_str_mv	AT sreejaranikpillai fieldemissioncharacteristicsofsno2cntscompositespreparedbymicrowaveassistedwetimpregnation AT sarahcmotshekga fieldemissioncharacteristicsofsno2cntscompositespreparedbymicrowaveassistedwetimpregnation AT suprakassinharay fieldemissioncharacteristicsofsno2cntscompositespreparedbymicrowaveassistedwetimpregnation AT johnkennedy fieldemissioncharacteristicsofsno2cntscompositespreparedbymicrowaveassistedwetimpregnation
_version_	1725506420378435584

Field Emission Characteristics of SnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation

Similar Items