Title :
Surface potential relaxation in Se-PVDF structures
Author :
Gorokhovatsky, Yu.A. ; Temnov, D.E.
Author_Institution :
Herzen State Pedagogical Univ. of Russia, St. Petersburg
Abstract :
The surface potential relaxation of free surface of polyvinylidenefluoride-tetrafluoroethylene copolymer films which were corona-charged with different metal-dielectric interface conditions particularly in the case of Se sublayer between an electrode and a sample surface is studied. The experimental results are interpreted from the point of view of improving the stability of the electret state of PVDF films for the purpose of the use of that material as an element of energy-independent memory cells or xerographic layers. It is shown that the charge relaxation in PVDF in relatively strong fields is monitored by Schottky emission from the opposite electrode
Keywords :
Schottky effect; electrets; metal-insulator boundaries; polymer blends; polymer films; selenium; surface potential; Schottky emission; Se; Se sublayer; Se-PVDF structures; charge relaxation; corona-charging; electret state stability; free surface; memory cells; metal-dielectric interface; polyvinylidenefluoride-tetrafluoroethylene copolymer films; strong fields; surface potential relaxation; xerographic layers; Crystallization; Electrets; Electrodes; Mechanical factors; Monitoring; Polarization; Polymers; Pyroelectricity; Stability; Transducers;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514747
