Preprint Article Version 1 This version is not peer-reviewed

Radiation Induced Transient Currents in Films of Poly(Arylene Ether Ketone) Including Phthalide Moiety

Version 1 : Received: 19 November 2019 / Approved: 20 November 2019 / Online: 20 November 2019 (11:07:30 CET)

How to cite: Pozhidaev, E.; Shaposhnikova, V.; Tameev, A.; Abrameshin, A. Radiation Induced Transient Currents in Films of Poly(Arylene Ether Ketone) Including Phthalide Moiety. Preprints 2019, 2019110237 (doi: 10.20944/preprints201911.0237.v1). Pozhidaev, E.; Shaposhnikova, V.; Tameev, A.; Abrameshin, A. Radiation Induced Transient Currents in Films of Poly(Arylene Ether Ketone) Including Phthalide Moiety. Preprints 2019, 2019110237 (doi: 10.20944/preprints201911.0237.v1).

Abstract

Electrical properties of the thin films of poly(arylene ether ketone) copolymers (co-PAEKs) with the fraction of phthalide-containing units of 3, 5 and 50 mol% in the main chain were investigated by using radiation induced conductivity (RIC) measurements. Transient current signals and current-voltage (I-V) characteristics were obtained under exposing 20÷25 thick films of the co-PAEKs to monoenergetic electron pulses of the energy ranged from 3 to 50 keV in the electric field ranged from 5 to 40 V/μm. The Rose-Fowler-Vaisberg semi-empirical model based on a multiple trapping formalism was used for an analysis of the RIC data and the parameters of the highly dispersive charge carrier transport were evaluated. The analysis revealed that charge carriers moved in isolation from each other and the applied electric fields were below the threshold field triggering the switching effect (a reversible high-to-low resistivity transition) in the co-PAEK films. It was also found that the co-PAEK films due to the super-linear I-V characteristics are highly resistant to electrostatic discharges arising from the effects of ionizing radiation. This property is important for the development of protective coatings for electronic devices.

Subject Areas

co-polymer; polyarylene ether ketones; switching effect; irradiation by electrons; small-signal regime; radiation induced conductivity; dispersive transport; carrier mobility

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