Title :
Field induced gas emission of polymer films
Author :
Selle, M. ; Eberle, G. ; Gompf, B. ; Eisenmenger, W.
Author_Institution :
Physikalisches Inst., Stuttgart Univ., Germany
Abstract :
Poling polyvinylidene fluoride under vacuum conditions causes strong gas emission, which is analyzed with a quadrupole mass spectrometer. The dominant peak in the mass spectrum is HF, which is produced by electrochemical reactions at the sample surface. After the electric field is switched off, the gas emission unexpectedly increases to a value higher than under the field. This can be explained by ionic charge detrappingand charge migration
Keywords :
dielectric polarisation; electrochemistry; field ion emission; mass spectroscopic chemical analysis; piezoelectric materials; polymer films; HF; biaxial stretched PVDF films; charge migration; electrochemical reactions; evaporated deposition; field induced gas emission; ionic charge detrapping; mass spectrum; poling; polymer films; polyvinylidene fluoride; quadrupole mass spectrometer; vacuum conditions; Atomic measurements; Crystallization; Electrodes; Gold; Hafnium; Polarization; Polymer films; Pulse measurements; Surface discharges; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0565-5
DOI :
10.1109/CEIDP.1992.283244
