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Conductivity Studies in Proton Irradiated AgI-Ag2O-V2O5-TeO2 Super-Ionic Glass System

Materials Sciences and Applications 2010年第2期1卷 59-65页

作者： Poonam Sharma Dinesh Kumar Kanchan meenakshi pant Karan Pal Singh 不详

The electrical properties of proton ion beam irradiated glass samples are carried out by impedance spectroscopy in the frequency range from 10 Hz to 32 MHz. The ion beam of energy 3 MeV and fluence of of 1014 particles cm-2 was chosen for irradiation. The conductivity of the super ionic glass samples increases after irradiation and other electrical parameters like dielectric constant, dielectric loss and modulus of the proton irradiated glass samples as a function of glass composition and temperature are observed to change. The dielectric constant and the dielectric losses are increased after irradiation and the modulus parameters confirm the non-Debye nature for irradiated samples also.

关键词： Proton-Irradiated Glass DC Conductivity Silver-Ion Scaling Modulus

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Effect of AgI on Conduction Mechanism in Silver-Vanadate Superionic Glasses

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New Journal of Glass and Ceramics 2011年第3期1卷 112-118页

作者： Poonam Sharma D.K. Kanchan meenakshi pant Manish S. Jayswal Nirali Gondaliya 不详

A quaternary super-ionic glass system xAgI: (95-x) [Ag2O:2V2O5]: 5TeO2, where 40 ≤ x ≤ 65 in steps of 5, has been pre- pared by melt quenching technique. The prepared glass samples are characterized by X-ray, FTIR and DSC studies. As revealed by the FTIR spectra, the oxyanion network is not affected by the addition of AgI. The frequency dependence of the electrical conductivity for various glass compositions at different temperatures has been analyzed in terms of Jon- scher’s universal power law. The measurements reveal that the conductivity increases from σ = 7.62 × 10–7 S/cm to 1.15 × 10–4 S/cm with increasing AgI content. The temperature dependent conductivity obeys the Arrhenius relationship. The impedance and modulus studies indicate the non-debye type of the frequency dispersion for all the glass samples.

关键词： Conductivity Glass Transition Temperature Infrared Spectra Impedance Modulus

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The Effect of Mixed Iodide Salts on the Conductivity Behavior in Ag2O-V2O5-B2O3 Superionic Glass System

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New Journal of Glass and Ceramics 2011年第3期1卷 125-129页

作者： Poonam Sharma D.K. Kanchan Nirali Gondaliya meenakshi pant Manish S. Jayswal 不详

A superionic mixed metal iodide glass system [(PbI2 –CuI ) - Ag2O- V2O5- B2O3] has been prepared by splat quenching technique. The prepared glass samples are characterized by X-ray diffraction (XRD) and differential scanning calo- rimetry (DSC). The effect of mixed metal iodide salts concentration on electrical properties has been investigated by the complex impedance spectroscopy (CIS). AC conductivity analysis is carried out in the frequency range of 2MHz-1Hz at different temperatures and an enhancement in the conductivity with iodide salts is the main feature of the observed re- sults with an anomaly at 20 mole % of PbI2 –CuI.

关键词： Iodide Salts Ag-Ion Conductors XRD Impedance

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