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IJPAP Vol.43(09) [September 2005] >


Title: Effects of forming magnetic field on characteristics of photo-magneto-electrets of kapton-H polyimide
Authors: Qureshi, M S
Dubey, R N
Tyagi, Aarti
Keywords: Photo-magneto-electrets
Depolarization
Photoconducting material
Aromatic polyimide
Electrets
Issue Date: Sep-2005
Publisher: CSIR
IPC CodeH01G7/02
Abstract: Photo-magneto-electrets of kapton-H-polyimide, a photoconducting material, have been prepared under various magnetic fields. Formation current, dark depolarization and photo-depolarization current studies have been reported. Formation current increases and becomes constant after some time. Saturation current increases with forming magnetic field. The variations of depolarization current of PMEs of kapton-H-polyimide, show a sharp maximum and then current decays, becoming constant in about ten min. Total area below the depolarization current versus time gives an idea about the volume polarization in the dielectric by simultaneous application of magnetic field and optical radiation.
Page(s): 684-687
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.43(09) [September 2005]

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