Record Details


Field	Value

Title	dc Conductivity and dielectric properties of V₂O₅-Bi₂O₃-ZnO glass

Creator	Shukla, D K Mollah, S

Subject	Glass dc Conductivity Polaronic hopping models Dielectric properties V₂O₅-Bi₂O₃-ZnO Semiconducting oxide glass

Description	52-56 Semiconducting oxide glass with composition 40 V₂O₅-40Bi₂O₃-20ZnO is prepared by rapid quenching method. The glassy phase is confirmed from X-ray diffraction (XRD) pattern which shows a broad hump around 2 = 30o. The dc conductivity of the glass has been measured in the temperature range 300 – 600 K and compared with that of other vanadium and copper based zinc oxide containing glasses. The dc conductivity is due to non-adiabatic small polaron hopping conduction which is confirmed from the fitting of the conductivity data with different polaronic hopping models. The frequency (75 kHz - 30 MHz) dependent dielectric constant of the glass decreases first and then increases with the increase of frequency at room temperature. The anomaly in frequency dependent dielectric constant at ~ 5 MHz may be due to the displacement and/or orientational motion of BiO₃ and BiO₆ structural units present in the glass.

Date	2008-10-22T08:53:18Z 2008-10-22T08:53:18Z 2007-01

Type	Article

Identifier	0019-5596 http://hdl.handle.net/123456789/2273

Language	en_US

Relation	G01R

Publisher	CSIR

Source	IJPAP Vol.45(1) [January 2007]

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