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Positron annihilation spectroscopy studies of implanted polymer membranes
Author(s) -
Constantin Florin,
Petruneac Marta,
Focsaneanu Marin
Publication year - 2021
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.5079
Subject(s) - materials science , positron annihilation spectroscopy , spectroscopy , doppler broadening , membrane , positron , fluence , ion , analytical chemistry (journal) , wafer , atomic physics , electron , positron annihilation , nanotechnology , nuclear physics , chemistry , spectral line , physics , biochemistry , organic chemistry , chromatography , quantum mechanics , astronomy
Two different polymer membranes, polyethylene and Nafion, have been sequentially implanted under vacuum at room temperature with 90 keV copper ions up to 10 17 ions/cm 2 ; after each implantation step, the targets were subjected to analysis with Positron annihilation lifetime spectroscopy and coincidence Doppler broadening spectroscopy. Both membranes revealed a similar behavior regarding the high fluence superficial implantation, but with different degree of magnitude. In order to endorse the Positrons annihilation spectroscopy results, scanning electron microscopy coupled with energy‐dispersive energy has been performed on the same targets, despite its lower sensitivity.