Stable and high current density electron emission using coniferous carbon nano-structured emitter
Stable and high current density electron emission using coniferous carbon nano-structured emitter
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DOI：
10.1016/j.diamond.2015.03.001
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发表时间：
2015-05-01
影响因子：
4.1
通讯作者：
Suzuki, Ryoichi
中科院分区：
文献类型：
--
作者：
Kato, Hidetoshi;O'Rourke, Brian E.;Suzuki, Ryoichi
测量了针叶碳纳米结构(CCNS)基场发射电子枪的电子发射特性。CCNS是用化学气相沉积(CVD)法在不锈钢衬底上生长的，偏压约为50kV。连续测量了超过1300h的稳定的高电流密度电子发射(102 mA/cm(2))，这一结果与打印和直接生长的碳纳米管(CNT)发射器相比是有利的。基于CCNS的电子发射体具有广泛的潜在应用前景，例如高强度X射线源。(C)2015爱思唯尔B.V.保留所有权利。
The electron emission properties of a coniferous carbon nano-structure (CCNS) based field emission electron gun have been measured. The CCNS was grown on a stainless steel substrate using chemical vapor deposition (CVD) and biased to about 50 kV. Stable, high-current-density electron emission (102 mA/cm(2)) was measured continuously for more than 1300 h. This result compares favorably to printed and directly grown carbon nanotube (CNT) based emitters. A wide range of potential applications are foreseen for CCNS based electron emitters, such as high intensity X-ray sources. (C) 2015 Elsevier B.V. All rights reserved.