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A comparative study of field emission properties of carbon nanotube films prepared by vacuum filtration and screen-printing

  • Min Qian
  • , Tao Feng*
  • , Kai Wang
  • , Hui Ding
  • , Yiwei Chen
  • , Zhuo Sun
  • *此作品的通讯作者
  • Ministry of Education of the People's Republic of China

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

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 ∼0.93 V/μm (at 1 μA/cm 2 ) and a high field enhancement factor β of ∼9720. 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.

源语言英语
页(从-至)4642-4646
页数5
期刊Applied Surface Science
卷256
期14
DOI
出版状态已出版 - 1 5月 2010
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