Title: Pillar Height Dependence of Field-Emission Properties in an Array of Carbon Nanotube Pillars
Authors: Chang, Chia-Tsung
Juan, Chuan-Ping
Cheng, Huang-Chung
Department of Electronics Engineering and Institute of Electronics
Issue Date: 1-Aug-2013
Abstract: Carbon nanotube pillars with optimal field-emission properties, including a high field enhancement factor beta of 5384 and a low turn-on field E-to of 0.84 V/mu m, have been achieved when the ratio of interpillar spacing to pillar height is 2. However, when this ratio exceeds 2, the field enhancement factor increases with increasing pillar height since the field can be enhanced by increasing the aspect ratio. When the ratio is smaller than 2, the field enhancement factor decreases with increasing pillar height owing to the increased field-screening effect. A simulation has been performed to verify the experimental results. (C) 2013 The Japan Society of Applied Physics
URI: http://dx.doi.org/10.7567/JJAP.52.085101
ISSN: 0021-4922
DOI: 10.7567/JJAP.52.085101
Volume: 52
Issue: 8
End Page: 
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