Slow Positron Beam Probe for the ZnO/Silicone under Proton Irradiation

Ying Ping Hao; Hui Min Weng; Chun Dong Li; Wei Feng Guo; Jian Dang Liu; Huai Jiang Du; Hai Ying Xiao; Bang Jiao Ye

doi:10.4028/www.scientific.net/MSF.607.108

Paper Titles

Atomic Scale Study of Surface Structures and Phase Transitions with Reflection High-Energy Positron Diffraction
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Positron Beam Characterization of Silica Thin Films with Structurally Ordered Porosity
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Positron Beam Study of Co Doped ZnO Films Prepared by PLD
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Positron Implantation and Transmission Experiments on Free-Standing Nanometric Polymer Films
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Slow Positron Beam Probe for the ZnO/Silicone under Proton Irradiation
p.108

Hydrogen- and Corrosion-Related Defect Characterization of Iron and Steels Using a Slow Positron Beam
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Disordered Structures of Adsorbed Hydrogens on Ni(111) Surface Studied by Slow Positron Beam and LEED
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Vacancy-Hydrogen Complexes in ZnO
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Positron Lifetime Study on Degradation of TiCrV Hydrogen Storage Alloy
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HomeMaterials Science ForumMaterials Science Forum Vol. 607Slow Positron Beam Probe for the ZnO/Silicone...

Slow Positron Beam Probe for the ZnO/Silicone under Proton Irradiation

Abstract:

The degradation of ZnO/Silicone coating system under 90keV proton irradiation varying from 5×1014cm-2 to 1×1016cm-2, was studied by slow positron annihilation spectrum. Effective diffusion length calculated by Variable energy positron fit (VEPFIT) shows a dramatically break in a dose of 1×1015cm-2. It is ascribed to the increase of crosslink density and decrease of free volume and hole during the proton irradiation. Furthermore, positron has shown a satisfying sensitivity in detecting the nano-scale defect on ZnO/Silicone system.