The thermally stimulated surface potential of betaine type host-guest polymer films

Author

Muzikante, I. ; Fonavs, E. ; Dobulans, R. ; Tokmakov, A. ; Stiller, B. ; Brehmer, L. ; Neilands, O.

Author_Institution

Inst. of Phys. Energetics, Riga, Latvia

fYear

2002

fDate

2002

Firstpage

251

Lastpage

254

Abstract

In this work betaine-type molecules were investigated. As a result of the asymmetry of charge distribution, molecules in the ground state have a considerable permanent dipole moment. The thermally stimulated surface potential dependences on poling temperature are investigated. The influence of α- and β-relaxations of PMMA on the surface potential of the film are shown. The thermal dependence of surface potential is discussed. The transition temperature, where no changes of the surface potential appeared, is related to glass transition temperature of the host-guest system.

Keywords

dielectric polarisation; dielectric relaxation; dyes; electric moments; glass transition; ground states; polymer films; surface potential; surface topography; thermally stimulated currents; PMMA; betaine type host-guest polymer films; charge distribution asymmetry; glass transition temperature; ground state; permanent dipole moment; poling temperature; relaxation; surface roughness; thermal dependence; thermally stimulated surface potential; Atomic force microscopy; Corona; Electrets; Electrodes; Optical films; Polymer films; Rough surfaces; Surface roughness; Surface topography; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 2002. ISE 11. Proceedings. 11th International Symposium on

Print_ISBN

0-7803-7560-2

Type

conf

DOI

10.1109/ISE.2002.1042990

Filename

1042990