TIME-DEPENDENCE OF THE NUMBER OF UNPAIRED ELECTRONS AND THE SHEET RESISTANCE IN ION-IRRADIATED POLYMERS

Authors
SVORCIK V ENDRST R RYBKA V HNATOWICZ V
Citation
V. Svorcik et al., TIME-DEPENDENCE OF THE NUMBER OF UNPAIRED ELECTRONS AND THE SHEET RESISTANCE IN ION-IRRADIATED POLYMERS, Materials letters, 28(4-6), 1996, pp. 441-444
Citations number
16
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
28
Issue
4-6
Year of publication
1996
Pages
441 - 444
Database
ISI
SICI code
0167-577X(1996)28:4-6<441:TOTNOU>2.0.ZU;2-Y
Abstract
Polyethylene, polyethyleneterephthalate and polyimide were irradiated with 150 keV Ar+ ions to the fluences of 5 x 10(14) and 1 x 10(15) cm( -2). On the ion-beam modified polymers, the number of unpaired electro ns and the sheet resistivity as functions of the time elapsed from the moment of irradiation were measured using EPR and the standard two-po int technique respectively. It is shown, on the basis of the measured time dependences of both quantities, that only part of unpaired electr ons (i.e. radicals) produced by ion irradiation affects electrical con ductivity of the irradiated polymers.