Vacancy defects inp-type6H−SiCcreated by low-energy electron irradiation

2000 ◽  
Vol 62 (16) ◽  
pp. 10841-10846 ◽  
Author(s):  
H. J. von Bardeleben ◽  
J. L. Cantin ◽  
L. Henry ◽  
M. F. Barthe
Keyword(s):  
Electron Irradiation ◽  
Low Energy ◽  
Energy Electron ◽  
Vacancy Defects ◽  
Low Energy Electron

Vacancy Defects Induced by Low Energy Electron Irradiation in 6H and 3C-SiC Monocrystals Characterized by Positron Annihilation Spectroscopy and Electron Paramagnetic Resonance

2006 ◽  
Vol 527-529 ◽  
pp. 571-574 ◽  
Author(s):  
X. Kerbiriou ◽  
Marie France Barthe ◽  
S. Esnouf ◽  
P. Desgardin ◽  
G. Blondiaux ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Positron Annihilation ◽  
Electron Irradiation ◽  
Positron Annihilation Spectroscopy ◽  
Low Energy ◽  
Energy Electron ◽  
Paramagnetic Resonance ◽  
Vacancy Defects ◽  
Low Energy Electron ◽  
Electron Paramagnetic

In this work we used Positron Annihilation Spectroscopy (PAS) and Electron Paramagnetic Resonance (EPR) to investigate the properties of vacancy defects produced by low energy electron irradiation. N-doped 3C-SiC and 6H-SiC monocrystals have been irradiated with electrons at different energies from 240keV to 900keV. EPR measurements show that Frenkel pairs VSi 3-/Si are created in 6H-SiC when electron irradiation is performed at low energy (240-360 keV). EPR also indicates that the silicon displacement threshold energy is higher in 3C-SiC than in 6HSiC. Moreover, PAS results show that the size and concentration of the vacancy defects decrease when the electron energy decreases for both polytypes. PAS detects vacancy defects in 240keV electron irradiated 3C-SiC, and the detection of the carbon vacancy is proposed.

The DC Surface Flashover Performance Research of Polyimide Under Low-Energy Electron Irradiation Environment

2016 ◽  
Vol 44 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Chenyang Liu ◽  
Ying Zheng ◽  
Pei Yang ◽  
Xiaoquan Zheng ◽  
Ying Li ◽  
...  
Keyword(s):  
Electron Irradiation ◽  
Low Energy ◽  
Energy Electron ◽  
Surface Flashover ◽  
Low Energy Electron ◽  
Performance Research
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