Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5365721 | Applied Surface Science | 2010 | 5 Pages |
Abstract
A comprehensive comparative study of electron field emission properties of carbon nanotube (CNT) films prepared by vacuum filtration and screen-printing was carried out. Field emission performance of vacuum filtered CNT films with different filtered CNT suspension volumes was systematically studied, and the optimum electron emission was obtained with a low turn on field of â¼0.93 V/μm (at 1 μA/cm2) and a high field enhancement factor β of â¼9720. Comparing with screen-printed CNT films, vacuum filtered CNT films showed better electron emission performance, longer lifetime, and greater adhesive strength to substrates. This work reveals a potential use of vacuum filtered CNT films as field emission cathodes.
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Authors
Min Qian, Tao Feng, Kai Wang, Hui Ding, Yiwei Chen, Zhuo Sun,