Mechanisms of electron field emission from diamond, diamond-like carbon, and nanostructured carbon
Mechanisms of electron field emission from diamond, diamond-like carbon, and nanostructured carbon
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DOI：
10.1116/1.590613
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发表时间：
1999-03-01
影响因子：
1.4
通讯作者：
Robertson, J
中科院分区：
文献类型：
--
作者：
Robertson, J
有人认为，碳系统的易电子场发射主要是因为表面基团（如C-H）可以产生大的局部电子亲和力变化，因此阳极的电场可以聚焦到高亲和力的未氢化表面积，电场在下面的耗尽层中以负电荷结束。由此产生的向下带弯曲产生了大的表面场，允许福勒-诺德海姆发射，同时不超过材料的击穿场。(C) 1999美国真空学会。[s0734 - 211 x(99) 06202 - 2]。
It is argued that the facile electron field emission from carbon systems occurs primarily because surface groups such as C-H can produce large changes in local electron affinity, so that electric fields from the anode can be focused toward unhydrogenated surface areas of high affinity, the fields ending on negative charges in an underlying depletion layer. The resulting downward band bending creates large surface fields which allow Fowler-Nordheim emission, while not exceeding the material's breakdown field. (C) 1999 American Vacuum Society. [S0734-211X(99)06202-2].