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Electron-beam-induced conduction in polyethylene terephthalate films

Journal Article:

Abstract

Measurements are reported of electron-beam-induced conduction in thin polyethylene terephthalate (PET) films for electron energies up to 10 keV. The ratio of induced dielectric current to incident beam current (the gain) is orders of magnitude less than unity over practically the whole range of beam penetration. This result is quite unlike that normally found for inorganic dielectrics where the gain will exceed unity and reach a maximum at or near full penetration. In spite of the very different gain characteristics it is shown that the model recently proposed by Nunes de Oliviera and Gross (J. App. Phys.; 46:3132 (1975)), and by Aris et al (IEE Conf. Publ. No.129.; 267 (1975) and J. Phys. C. Solid State Phys.; 9:797 (1976)) and applied to mica and tantalum oxide respectively is also applicable to PET. Use is made of the known carrier mobility and lifetime data for this polymer and it is shown that very large space-charge distortions of the field can be produced by the beam which may well account for the frequent sample failure experienced during the experiments. The work supports suggestions by earlier workers that the current in unirradiated PET is electrode limited and predicts the maximum (space-charge limited) current  More>>
Authors:
Beckley, L M; Lewis, T J; Taylor, D M [1] 
  1. University Coll. of North Wales, Bangor (UK). School of Electronic Engineering Science
Publication Date:
Jun 21, 1976
Product Type:
Journal Article
Reference Number:
AIX-07-269563; EDB-77-013250
Resource Relation:
Journal Name: J. Phys., D (London); (United Kingdom); Journal Volume: 9:9
Subject:
36 MATERIALS SCIENCE; POLYESTERS; PHYSICAL RADIATION EFFECTS; BEAM CURRENTS; CARRIER LIFETIME; CARRIER MOBILITY; DIELECTRIC PROPERTIES; ELECTRIC CONDUCTIVITY; ELECTRON BEAMS; FILMS; KEV RANGE 01-10; MATHEMATICAL MODELS; PHTHALATES; POLYETHYLENES; RANGE; SPACE CHARGE; BEAMS; CARBOXYLIC ACID SALTS; CURRENTS; ELECTRICAL PROPERTIES; ENERGY RANGE; ESTERS; KEV RANGE; LEPTON BEAMS; LIFETIME; MOBILITY; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PARTICLE BEAMS; PHYSICAL PROPERTIES; POLYMERS; POLYOLEFINS; RADIATION EFFECTS; 360406* - Materials- Polymers & Plastics- Radiation Effects- (-1987)
OSTI ID:
7345442
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JPAPB
Submitting Site:
INIS
Size:
Pages: 1355-1365
Announcement Date:

Journal Article:

Citation Formats

Beckley, L M, Lewis, T J, and Taylor, D M. Electron-beam-induced conduction in polyethylene terephthalate films. United Kingdom: N. p., 1976. Web.
Beckley, L M, Lewis, T J, & Taylor, D M. Electron-beam-induced conduction in polyethylene terephthalate films. United Kingdom.
Beckley, L M, Lewis, T J, and Taylor, D M. 1976. "Electron-beam-induced conduction in polyethylene terephthalate films." United Kingdom.
@misc{etde_7345442,
title = {Electron-beam-induced conduction in polyethylene terephthalate films}
author = {Beckley, L M, Lewis, T J, and Taylor, D M}
abstractNote = {Measurements are reported of electron-beam-induced conduction in thin polyethylene terephthalate (PET) films for electron energies up to 10 keV. The ratio of induced dielectric current to incident beam current (the gain) is orders of magnitude less than unity over practically the whole range of beam penetration. This result is quite unlike that normally found for inorganic dielectrics where the gain will exceed unity and reach a maximum at or near full penetration. In spite of the very different gain characteristics it is shown that the model recently proposed by Nunes de Oliviera and Gross (J. App. Phys.; 46:3132 (1975)), and by Aris et al (IEE Conf. Publ. No.129.; 267 (1975) and J. Phys. C. Solid State Phys.; 9:797 (1976)) and applied to mica and tantalum oxide respectively is also applicable to PET. Use is made of the known carrier mobility and lifetime data for this polymer and it is shown that very large space-charge distortions of the field can be produced by the beam which may well account for the frequent sample failure experienced during the experiments. The work supports suggestions by earlier workers that the current in unirradiated PET is electrode limited and predicts the maximum (space-charge limited) current likely to occur in this polymer.}
journal = {J. Phys., D (London); (United Kingdom)}
volume = {9:9}
journal type = {AC}
place = {United Kingdom}
year = {1976}
month = {Jun}
}