Charging transient in polyvinyl formal

Charging transient in polyvinyl formal

In the present paper charging and discharging transient currents in polyvinyl formal (PVF) were measured as a function of temperatures (40–80°C), poling fields (90 ×103−9.0 × 104 V/cm) and electrode combinations (Al-Al, Au-Al, Zn-Al, Bi-Al, Cu-Al and Ag-Al). The current-time characteristics have dif...

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Veröffentlicht in:Bulletin of materials science 2001-08, Vol.24 (4), p.401-406
Hauptverfasser: Khare, P. K., Jain, P. L., Pandey, R. K.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Charging
Copper
Current carriers
Discharge
Electrodes
Gold
Polyvinyl formal
Space charge
Transient current
Trapping
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Zusammenfassung:In the present paper charging and discharging transient currents in polyvinyl formal (PVF) were measured as a function of temperatures (40–80°C), poling fields (90 ×103−9.0 × 104 V/cm) and electrode combinations (Al-Al, Au-Al, Zn-Al, Bi-Al, Cu-Al and Ag-Al). The current-time characteristics have different values of slope lying between 0.42–0.56 and 1.42–1.63. The polarization is considered to be due to dipolar reorientation associated with structural motions and space charge relaxations due to trapping of injected charge carriers in energetically distributed traps.
ISSN:0250-4707
0973-7669
DOI:10.1007/BF02708638