Open AccessАномальные характеристики ионной эмиссии при разрыве полимеров
Author(s) -
В.А. Пахотин,
Ю.М. Бойко
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.02.50545.18535
Subject(s) - ion , polyimide , polyethylene terephthalate , materials science , analytical chemistry (journal) , saturation (graph theory) , resonance (particle physics) , ion current , atomic physics , chemistry , composite material , physics , organic chemistry , mathematics , layer (electronics) , combinatorics
Measurements of the current-voltage characteristics of ion emission during the rupture of film samples of polyethylene terephthalate, polyimide, and polyphenylene ether in high vacuum have been carried out. Positive ions begin to be detected at a pulling potential of 100–200 V, and their number monotonically increases to saturation with increasing potential. Emission of negative ions is observed at a potential of << 200 V and in the range of 0–50 V has a resonance character, and the position of the resonance peaks is determined by the nature of the polymer. The discovered resonant nature of negative ion emission corresponds to the proposed physical mechanism of ion formation