Relaxation processes in swift heavy ion irradiated poly(vinylidene fluoride) films

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-02-03 DOI:10.1016/j.radphyschem.2025.112593

E. Volgina , U. Pinaeva , D. Temnov , O. Ivanov , S. Mitrofanov , A. Nechaev

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引用次数: 0

Abstract

The article reports on the investigation of relaxation processes occurring in poly(vinylidene fluoride) (PVDF) films irradiated with swift heavy ions (SHI) of Ne, Xe, and Bi by thermally stimulated depolarization current (TSDC) methods. Two relaxation processes observed in the pristine PVDF films in the temperature range from −10 to 40 °C were associated with

α_{с}

-relaxation. It has been shown that SHI irradiation shifts the maxima of the relaxation processes to a higher temperature region following a decrease in the current as compared to the non-irradiated polymer. An effect of electronic energy loss is emphasized. An increase in the Xe ion beam fluence caused a decrease in the frequency factor, suggesting a change in the size and hence the mass of the relaxor units. Chemical etching of the created Xe ion tracks resulted in the appearance of a new relaxation process associated with the activation of defects at the boundary between the track walls and the undamaged polymer.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.