Secondary Electron Emission Studies of Diamond Surfaces

Author:

Shih A.,Yater J.,Pehrsson P.,Butler J.,Hor C.,Abrams R.

Abstract

ABSTRACTDiamond exhibits high secondary-electron yields which vary strongly with sample preparation and sample treatment. In this study, we identify some of the factors that govern the secondary-electron emission yield of diamond. Comparative studies are made with polycrystalline diamond films having different dopants (boron or nitrogen), dopant concentrations and surface conditions (hydrogen-terminated or oxidized). In these studies, the total electron yield as a function of the incident-electron energy and the energy distribution of the secondary emitted electrons are measured. The results show that both electrical conductivity and hydrogen-termination play essential roles in the secondary-electron emission process. For hydrogen-terminated samples, the energy distribution shows a large and narrow peak at the onset of electron emission. The long mean-free path of the secondary electrons and the low or negative electron affinity are essential to the exceedingly high electron yield of diamond.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

Cited by 7 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Secondary electron emission properties of double-layer B-doped diamond films;Diamond and Related Materials;2020-06

2. Emission of electrons from diamond surfaces induced by MeV ions;Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;2004-06

3. High ion-beam induced electron yields from polycrystalline diamond;Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;2002-05

4. Ion-induced electron emission from diamond;Applied Physics Letters;1998-07-06

5. Effects of dopant concentration, crystallographic orientation, and crystal morphology on secondary electron emission from diamond;Journal of Applied Physics;1997-11

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