Current-voltage and electron emission characteristics of diamond particles

Current-voltage and electron emission characteristics of diamond particles
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金刚石颗粒的电流电压和电子发射特性

DOI:
10.1116/1.2709900
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发表时间:
2007-03
期刊:
J. Vac. Sci. Technol. B
影响因子:
--
通讯作者:
Hidenori Mimura
Hidenori Mimura
中科院分区:
其他
文献类型:
--
作者:
Guang Yuan;Zhangzhi Gu;Hang Song;Hidenori Mimura

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在扫描电子显微镜室中,用另一种钼探针测量了沉积在钼针尖上的两种金刚石颗粒的电流-电压(I-V)和电子发射特性。金刚石颗粒的I-V特性和场发射特性在很大程度上取决于其质量。在高质量的金刚石颗粒中观察到欧姆电流和无电子发射,而在菜花状颗粒中观察到Pool-Frenkel电流和电子发射。此外,利用多晶金刚石薄膜的结构和电学特性,制备了一种新型的平面二极管结构的金刚石栅阴极。(c)2007年美国真空学会
Current-voltage (I-V) and electron emission characteristics of two types of diamond particles deposited on Mo tips were measured by using another Mo probe in a scanning electron microscopy chamber. The I-V and field emission characteristics of the diamond particles strongly depend on their quality. Ohmic current and no electron emission are observed in a high quality diamond particle, while Pool-Frenkel current and electron emission are observed in a cauliflowerlike particle. Furthermore, to make use of structural and electrical properties of a polycrystalline diamond film, a novel gated diamond cathode with a plane diode structure was fabricated. (c) 2007 American Vacuum Society
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