학술논문
Field Emission Characteristics of SnO2 /CNTs Composites Prepared by Microwave-Assisted Wet Impregnation.
Document Type
Article
Source
Subject
*FIELD emission
*MICROWAVES
*NANOPARTICLES
*NANOSTRUCTURED materials
*ELECTRON emission
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Language
ISSN
1687-4110
Abstract
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. [ABSTRACT FROM AUTHOR]