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 |
| 已对外发布 | 是 |
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