Ac Conductivity Values Research Articles

Chemical Bonding of Fe3O4 Nanoparticles on the Surface of Poly(acryloyl chloride) Functionalized Multiwalled Carbon Nanotubes

Poly(acryloyl chloride) (PAC) was first reacted with oxidized MWCNT to form oxidized MWCNT-g-PAC. Then, aminated MNP were bonded to the oxidized MWCNT-g-PAC to form oxidized MWCNT-g-PAC-g-aminated MNP. The chemical characterization for primary and the product materials was performed using FT-IR spectroscopy. SEM images and SEM–EDX were used for the surface morphology and elemental characterization, respectively. Vibrating sample magnetometer measurements showed that aminated MNP and oxidized MWCNT-g-PAC-g-aminated MNP have magnetic saturation values of 52.07 emu/g and 20.38 emu/g, respectively. Both of the two samples indicated the superparamagnetic nature. TGA measurements were accomplished to compare the thermal stability of materials. Also, the DSC measurements were performed to compare Tg temperatures. While AC conductivity values of the oxidized MWCNT-g-PAC and oxidized MWCNT-g-PAC-g-aminated MNP increased by increasing frequency, it has not changed with increasing temperature. This result indicates that these materials act as electrical insulators.

A systematic analysis of the radial resonance frequency spectra of the PZT-based (Zr/Ti = 52/48) piezoceramic thin disks

In this paper, both the 1D radial mode and the equivalent circuit of a piezoceramic disk resonator were theoretically analyzed based on IEEE standards. And then, the radial resonance frequency spectra of the PZT-based (Nb/Ce co-doped Pb(Zr0.52Ti0.48)O3, abbreviated as PZT-NC) piezoceramic circular disks were measured by an impedance analyzer. A set of resonance frequency spectra including six electrical parameters: Z, R, X, Y, G, and B, were used for making a value distinction between three possible resonance frequencies, and between three possible antiresonance frequencies. A new-form Nyquist diagram was depicted to describe the position relations of these characteristic frequencies. Such a complete resonance frequency spectrum was used to perform the accurate calculation of some material constants and electromechanical coupling parameters for the PZT-NC piezoceramics. Further, the frequency dependence of the AC conductive behavior of the specimen was characterized by the complex impedance measurement. The values of AC conductivity at resonance/antiresonance were deduced from the equivalent circuit parameters. Moreover, the Van Dyke circuit model was assigned to each element contribution and the simulated curves showed a nice fitting with the experimental results. Finally, an additional impedance analysis associated with resonance frequency calculation revealed a complicated coupled vibration mode existing in the annular disk specimen.

Silver nanoparticles dispersed in nematic liquid crystal: an impact on dielectric and electro-optical parameters

In the present study, nematic liquid crystal (NLC) 4′-(Octyloxy)-4-biphenylcarbonitrile dispersed with three different concentrations of silver nanoparticles (Ag NPs) is characterized by electro-optical and dielectric spectroscopy method. The dispersion of Ag NPs into NLC material leads to the change in physical parameters such as dielectric permittivity, photoluminescence, threshold voltage, response time and splay elastic constant. The AC conductivity and threshold voltage of Ag NPs-dispersed composite system have increased significantly. The increase in the AC conductivity for the composite system is attributed to the Ag NPs-assisted induced charge transfer mechanism in the system. Moreover, the increase in AC conductivity value for Ag NPs/NLC composite system discloses its importance in photovoltaic solar cell.

Temperature and frequency effects on electrical and dielectric properties of n-4H SiC based metal–insulator-semiconductor (MIS) diode interlayered with Si3N4 thin film

Effects of frequency and temperature variations on the electrical properties of Au/Si3N4/n-4H SiC diode were investigated. The diode responses to the change in frequency with applied AC signal of varying frequencies and to the change in temperature controlled by cryogenic control system were discussed with considering possible deviation from ideality and effects of interface states at the junction. Depending on its capacitive and conductive characteristics, internal parasitic resistances were associated with the observed dielectric behaviors of the diode. With the use of Si3N4 layer, the values of complex dielectric constant were extracted and this parameter was found to be in a strong dependence of interface changes in low frequency region whereas this variation was very low at higher frequencies. In addition, there is a slight decrease in the dielectric constant with increasing temperature whereas the values of dielectric loss give a remarkable response to the temperature at forward bias region. Depending on these profiles, AC conductivity values were found in decreasing behavior with both frequency and temperature. From the temperature dependent behaviors, activation energies were calculated from the corresponding Arrhenius plots. Together with the series resistance of the diode and density of interface states, interface polarization was found in a dominant role in both complex dielectric and electric modulus characteristics of the diode.

The role of Li4Ti5O12 nanoparticles on enhancement the performance of PVDF/PVK blend for lithium-ion batteries

The effective role of Lithium Titanate (Li4Ti5O12) filled in Poly (vinylidene fluoride)/Poly (n-vinyl carbazole) (PVDF/PVK) (80/20wt/wt%) blend matrix was demonstrated. PVDF/PVK/Li4Ti5O12 nanocomposite films with ratios 0.2, 0.5, 1.5, and 2.0wt% of Li4Ti5O12 NPs have been successfully synthesized via casting technique. Structural, optical, and electrical properties of the prepared PVDF/PVK/Li4Ti5O12 films have been evaluated via several techniques such as; XRD, FTIR-ATR, UV–vis and A.C. conductivity. The XRD and FTIR-ATR results confirmed the interaction between the PVDF/PVK blend and Li4Ti5O12 NPs. Also, the increasing of ratios of lithium titanate NPs decreased the degree of crystallinity of PVDF/PVK blend. UV–vis data obtain that there are two new peaks at 348nm and 380nm and their intensities increase with increasing lithium titanate NPs. The behavior of dielectric constant and dielectric loss are progressively decreased as the frequency increased. The values of AC conductivity are increased as the ratios of Li4Ti5O12 NPs in the PVDF/PVK blend matrix increased. AC conductivity results of PVDF/PVK/Li4Ti5O12 blend confirm the ability of this nanocomposite in Rechargeable Batteries Applications.

One-Step Synthesis of Polypyrrole-Coated Gold Nanoparticles for Use as a Photothermally Active Nano-System.

ObjectiveThis paper introduces a simple one-step and ultra-fast method for synthesis of highly photothermally active polypyrrole-coated gold nanoparticles. The synthesis process is so simple that the reaction is very fast without the need for any additives or complicated steps.MethodologyPolypyrrole-coated gold nanoparticles (AuPpy NPs) were synthesized by reacting chloroauric acid (HAuCl4) with pyrrole (monomer) in aqueous medium at room temperature. These nanoparticles were characterized by UV–visible–NIR spectrometry, transmission electron microscopy (TEM), AC conductivity, zeta sizer and were evaluated for dark cytotoxicity and photocytotoxicity using human hepatocellular carcinoma (HepG2) cell line as a model for cancer cells.ResultsThe synthesized AuPpy NPs showed a peak characteristic for gold nanoparticles (530–600 nm, molar ratio dependent) and a wide absorption band along the visible–NIR region with intensity about triple or even quadruple that of polypyrrole synthesized by the conventional FeCl3 method at the same concentration and under the same conditions. TEM imaging showed that the synthesized AuPpy NPs were composed of spherical or semi-spherical gold core(s) of about 4–10 nm coated with distinct layer(s) of polypyrrole seen either loosely or in clusters. Mean sizes of the synthesized nanoparticles range between ~25 and 220 nm (molar ratio dependent). Zeta potentials of the AuPpy NPs preparations indicate their good colloidal stability. AC conductivity values of AuPpy NPs highly surpass that of Ppy prepared by the conventional FeCl3 method. AuPpy NPs were non-toxic even at high concentrations (up to 1000 µM pyrrole monomer equivalent) under dark conditions. Unlikely, light activated the photothermal activity of AuPpy NPs in a dose-dependent manner.ConclusionThis method simply and successfully synthesized AuPpy NPs nanoparticles that represent a safe alternative photothermally active multifunctional tool instead of highly toxic and non-biodegradable gold nanorods.

Influence of pretreatment on mechanical and dielectric properties of short sunn hemp fiber-reinforced polymer composite in correlation with fine structure of the fiber

Present investigation is aimed on chemically modified of Sunn Hemp (Crotalaria juncea) fiber for composite fabrication. An increment in cellulose crystallinity with crystallite size is observed from X-ray diffraction study. The signature of impurities removal and an uneven surface are confirmed from Fourier Transmission Infrared Spectroscopy and Field Emission Scanning Electron Microscopy. Afterwards, both raw sunn hemp-reinforced fiber composite and dewaxed sunn hemp fiber-reinforced composite were fabricated using hand lay out method and the mechanical as well as dielectric properties of composite are studied. A better mechanical strength is found in DSHC which may attribute to rough surface and increased cellulose crystallinity through dewaxing process that promoted a fine interfacial bonding between fiber and matrix. Dielectric constants and losses are found to be less in dewaxed sunn hemp fiber-reinforced composite in comparison to raw sunn hemp-reinforced fiber composite due to decrease of water polar groups, which lead to lessening the effect of space charge polarization by treatment. Complex impedance and modulus study revealed the presence of single relaxation process in both systems. Lower ac conductivity value is observed in dewaxed sunn hemp fiber-reinforced composite due to decreasing of conducting polar OH groups. As a whole, the effort is established to correlate the mechanical and dielectric properties with fine structural parameters of the fiber.

One-Pot Pulsed Laser Ablation route assisted copper oxide nanoparticles doped in PEO/PVP blend for the electrical conductivity enhancement

Polyethylene Oxide (PEO)/Polyvinyl pyrrolidone (PVP)/Copper Oxide Nanoparticles (CuONPs) were synthesized by one-step Pulsed Laser Ablation of pure Copper plate immersed in PEO/PVP (70/30wt.%) solution. PEO/PVP/CuONPs composite films were prepared using casting method. The role of copper nanoparticles on modifying PEO/PVP was demonstrated. The effect of different laser ablation times on the characterization of the prepared PEO/PVP/CuONPs composite films have been studied via XRD, UV–vis, PL, SEM, and Ac conductivity. XRD and SEM confirm the complexation between CuONPs and PEO/PVP matrix. The appearance of the characteristic absorption peak at 275nm in UV–vis spectrum was attributed to the surface plasmon resonance (SPR) of CuONPs. The values of the direct and indirect optical band gap show a decreasing after doping PEO/PVP matrix by CuONPs. PL analysis confirmed that the existence of the CuO nanoparticles comprehensively reorders the delocalized n-electron system of PEO/PVP blend matrix. The behavior of dielectric constant and dielectric loss are progressively decreased as the frequency increased. The values of AC conductivity are increased as the laser ablation time increased. M' and M″ values are increased by increasing the concentration of CuONPs in the PEO/PVP blend matrix, which induces an increase in the ion conduction of the prepared samples.

Enhanced Dielectric Properties of Sintered MgFe1.98Nd0.02O4 Nanoparticles

Spinal MgFe1.98Nd0.02O4 was prepared by simplified sol-gel method. To measure the dielectric properties samples were sintered from 700-800 oC in the steps of 50 oC. The sample’s phase purity, crystallographic phase and crystallite size was measured by X-ray diffraction method (XRD). The pellets were analyzed in Scanning Electron Microscope for their surface morphology and grain shape. Dielectric properties were measured from 20 Hz to 3 MHz at room temperature. Samples sintered at 750 oC, showed highest value of AC conductivity which indicated that the material is suitable for use in sensors. However, minimum value of dielectric loss factor was obtained at 800 and#176;C which makes it more suitable for antenna applications.

Enhanced Dielectric Properties of Sintered MgFe1.98Nd0.02O4 Nanoparticles

Spinal MgFe1.98Nd0.02O4 was prepared by simplified sol-gel method. To measure the dielectric properties samples were sintered from 700-800 oC in the steps of 50 oC. The sample’s phase purity, crystallographic phase and crystallite size was measured by X-ray diffraction method (XRD). The pellets were analyzed in Scanning Electron Microscope for their surface morphology and grain shape. Dielectric properties were measured from 20 Hz to 3 MHz at room temperature. Samples sintered at 750 oC, showed highest value of AC conductivity which indicated that the material is suitable for use in sensors. However, minimum value of dielectric loss factor was obtained at 800 and#176;C which makes it more suitable for antenna applications.

Effects of temperature, bias and frequency on the dielectric properties and electrical conductivity of Ni/SiO2/p-Si/Al MIS Schottky diodes

In this paper, we have studied the effects of temperature, bias and frequency on the dielectric properties of Ni/SiO2/p-Si/Al MIS diode. For that, we have carried out the capacitance and conductance measurements of the diode in wide temperature range from 95 K to 300 K and with varied bias from 1 V to 3 V at frequency range of 10 kHZ to 1 MHZ. The experimentally obtained I–V characteristics of the diode reveals excellent rectification behaviour in the measured temperature range. The dielectric study shows that the values of dielectric constant (ε′), dielectric loss (ε′′), loss tangent (tanδ), ac conductivity (σac) and electric modulus (M′) are sensitive to the temperature, bias voltage and frequency. The values of ε′ increases with increase in the temperature, applied bias and shows dispersion in the low frequency region and found to be independent in the higher frequency region. The loss tangent (tanδ) vs ln(ω) plot shows peak at higher frequencies which indicates the evidence for hopping of charge carriers. The ac conductivity (σac) was analysed by using power law and found to increase with temperature, applied bias and becomes less dependent on frequency at higher voltages. The Arrhenius plot of σac reveals two different slopes in the measured temperature range which indicates the presence of two distinct trap states. Also, the activation energy found to change significantly with the frequency at higher temperatures. In addition, the variation of electric modulus (M′) with temperature and frequency are found to be consistent with above obtained results.

Temperature dependent dielectric properties and AC conductivity studies on titanium niobium oxide (TiNb2O7) thin films

The dielectric properties of TiNb2O7 (TNO) thin films are studied in Metal-Insulator-Metal configuration (Au/TiNb2O7/Pt) devices. The temperature dependence of the dielectric dispersion and the AC conductivity behavior is strongly dependent on TNO thin film thickness. Low thickness (∼236 nm) films shows considerably less variation with temperatures than their thicker counterparts (∼480 nm). These behaviors are explained on physical basis – nearly constant loss (NCL) and Jonscher's Universal Dielectric Response (UDR). The TNO thin films show large dielectric constant (∼59–73) and moderate dielectric loss (∼0.07–0.11). The AC conductivity values of the thin films lie in the range of about (10−8 to 10−9) at 10 kHz. The thicker films show DC conductivity values which are thermally activated with an activation energy of about 0.44 eV. This is slightly higher (about 0.1 eV) than ωp in Jonscher's UDR response and this discrepancy is explained on the basis of mixed ionic electronic conduction in TNO thin films. The possible role of growth morphology in the dielectric response is also briefly mentioned.

Thermal studies and influence of the thermal decomposition on dielectric properties of a new coumarin copolymers

In this study, firstly 7-hydroxy-4-chloroethyl coumarin compound was synthesized in accordance with the literature (Peterson et al. in Macromol Chem Phys 202: 775–784, 2001). Then, this compound was reacted with acryloyl chloride to form the 4-(chloromethyl)-2-oxo-2H chromen-7-yl-acrylate) monomer. A series of copolymers were prepared using this monomer and n-butyl acrylate monomer. TGA analysis system was used to examine the thermal properties of homopolymers and copolymers. The activation energies were calculated for thermal decomposition of homopolymer and certain copolymers according to Flynn–Wall–Ozawa method. TGA measurements were taken at different heating rates and given comparatively. The glass transition temperatures of the copolymers were determined by DSC analysis and these results were given comparatively. For investigating the dielectric properties of copolymers, dielectric constant, dielectric loss factor, and ac conductivity values were calculated in the range of 100 Hz–20 kHz frequencies. The results were plotted as a function of frequency. In addition, dielectric behaviors of residues were determined after heating to the first decay temperature of the two-stage decay polymers and compared with the first states.

A facile synthesis of Bi@PbS nanosheets and their key physical properties analysis for optoelectronic technology

Herein, the synthesis of pure and Bi-doped PbS (Bi: PbS) nanopowders was attained facilely by the chemical route at low temperature. The presence of Bi content and its homogeneity in the final products was confirmed by EDX/SEM mapping analysis. The presence of a cubic crystal system was confirmed through X-ray diffraction study, and lattice parameters were evaluated. XRD patterns confirmed the absence of extra peaks due to free Bi or any other phase formation in the final products. The crystallite size, density of dislocation, and strain values were also estimated, and the values of the crystallite size were found to lie in a range of 16–24 nm. Vibrational spectroscopy revealed the presence of two phonon-modes as LO, 2LO, and 3LO at 135, 270, 430, and 601 cm−1, respectively, with minute shifts in their positions due to doping and the quantum confinement effect. The surface morphology of nanoparticles (NPs) of size 8–10 nm to nanosheets (NSs) of few microns size assembled from very fine nanoparticles (<10 nm) in Bi doped PbS were remarkably modified based on FE-SEM analysis. The diffused reflectance technique was employed to evaluate the energy gap (Egd) of all the final products, which was found to fall in the range of 0.85–1.9 eV, and theses vales were larger than that of bulk PbS, i.e. 0.41 eV. The enhancement in the value of Egd is due to the quantization effect. PL emission spectra recorded at λexc=450 nm possessed three emission bands at approximately 518 ± 10 nm, (green and intense) and 558 ± 2 nm (yellow-green), and 708 ± 2 nm (red and broad). The intensity of the PL emission was quenched with Bi doping; however, it was enhanced for doped PbS containing 2.5 wt% Bi. The dielectric constant was found to be in range of 26–46 overall at the tested frequencies, and the 1.0 wt% Bi: PbS sample attained the maximum value. The total AC conductivity value increased with increasing frequency and obeyed the universal frequency power law, and the 1.0 wt% Bi: PbS attained the maximum value.

Thickness dependence of AC conductivity in TlSe thin films

Thalium selenide (TlSe), which has a lattice with tetragonal symmetry, is a member of the A3B6 semiconductor group. The structure of TlSe is defined as chains where atoms inside are bonded with an ionic-covalent bond. TlSe thin films were deposited by thermal evaporation under a high vacuum on glass substrates. The structure of TlSe thin films is amorphous with a tetragonal structure. The AC conductivity measurements were operated via the measurements of capacitance and dielectric dissipation (tanδ) at room temperature. AC conductivity values change between 10−11 and 10−6 S/cm at the low-frequency side with decreasing thickness. Two different conduction regions were observed with increasing frequency. The region observed at the low-frequency side can be attributed to the motion of a chain-like part of the lattice, while the region observed at the high-frequency side can be attributed to side groups.

Precipitation of Silver Nanoparticles in Borate Glasses by 1064 nm Nd:YAG Nanosecond Laser Pulses: Characterization and Dielectric Studies

This work aims to present a modern process to synthesis nanoparticles in a glassy matrix. Borate glasses doped by silver nitrate (AgNO3) via the melt annealing technique were irradiated by a (1064 nm wavelength) Nd:YAG (Neodymium–doped Yttrium Aluminum Garnet) laser to yeild precipitation of silver nanoparticles (AgNPs) in borate glasses. The characterization of the irradiated glasses was investigated using ultraviolet/visible (UV/Vis.), x-ray diffraction (XRD), high resolution-transmission electron microscopy (HR-TEM), field emission-scanning electron microscopy (FE-SEM), and dielectric properties. XRD patterns depict the presence of sharp diffraction peaks at 111 and 200 planes that can be attributed to the precipitated AgNPs in the borate glass sample after laser irradiation. A significant change in color was observed within the borate glass after laser irradiation, which was attributed to the appearance of surface plasmon resonance and confirmed the presence of AgNPs in the borate glass. The morphological properties and the distribution of the observed AgNPs inside the sample were performed via HR-TEM and FE-SEM. The behavior of dielectric constant and dielectric loss progressively decreased as the frequency increased. The values of AC conductivity increased as the temperature of the borate glass matrix increased.

The Magnetic, Electrical and Optical Properties of Rare Earth Er3+ Doped Lead Borate Glass

Owing to the unique electronic structure of rare earth elements, we address in this paper the magnetic, electrical and optical properties of a prepared lead borate glass of composition (mol.%) 70PbO·30B2O3. The glass is doped with different ErCl3 contents. A vibrating-sample magnetometer was used to characterize the magnetic properties. Increasing the additive concentration led to an increase in the saturation magnetization without significant effects on the coercivity. Optical reflectance spectra of the doped glasses revealed the development of absorption bands as a result of Er3+ intra-configurational (f–f) transitions. The calculated allowed direct energy gap was found to increase monotonically with increasing dopant concentration. The results of the ac conductivity showed a decrease in the activation energy values with increasing frequency and an increase in the ac conductivity values with increasing temperature, which mimics the semiconducting behavior. The incorporation of the rare earth ion (Er3+) facilitated the electronic conduction due to the increase of the non-bridging oxygen units. Increasing the dopant concentration led also to the participation of the ionic conductions. However, further increase of ErCl3 (above 1 mol.%) caused a decrease in the conductivity. Samples with dopant content up to 1 mol.% ErCl3 are accompanied by a high dielectric constant value of about 40. It can be concluded that samples doped with 1 mol.% ErCl3 or less can be used as energy storage material in electronic devices, whereas glass samples with higher dopant content can be used for magnetic applications.

Investigation of thermodynamical, dielectric and electro-optical parameters of nematic liquid crystal doped with polyaniline and silver nanoparticles

In the present investigation, thermo-dynamical, dielectric & electro-optical characterization of a neamtic liquid crystal (NLC) and its mixtures with polyaniline (PANI) & silver nanoparticles (Ag NPs) have been carried out. To visualize the combined effect of polyaniline and silver nanoparticles, a polyaniline/silver nanocomposite has been prepared. Equal concentration of polyaniline, silver nanoparticles & polyaniline/silver nanocomposite has been taken and doped into the pure NLC material. A comparison of various LC parameters of pure NLC material and its mixtures with different dopant has also been done. Thermodynamical study suggests that the presence of polymer and nanoparticles duo in LC can tune the order parameter of LC material. Dielectric measurements have been performed to obtain the dielectric permittivity, dielectric anisotropy, and ac conductivity values. The birefringence of the mixtures has been measured to reveal the role of guest entity on the electro-optical properties of LC material. From the experimental values, it can be concluded that the polyaniline/silver nanocomopsite doped LC mixture can be utilized in enhancing the features of liquid crystal displays & other energy efficient devices.

Physical properties of the organic polymeric blend (PVA/PAM) modified with MgO nanofillers

Magnesium oxide/polyvinyl alcohol/polyacrylamide (MgO/PVA/PAM) nanocomposite films were prepared via a solution chemical method. The effect of PVA and MgO nanoparticles (NPs) loading on the physical properties of PAM is discussed. X-ray diffraction reveals that the average MgO crystallite size of the NPs is ∼25 nm, while adding PVA increases the crystallinity of PAM. FTIR spectra confirm the interaction between blend chains and MgO NPs. Differential scanning calorimetry thermograms illustrate the miscibility between the PVA and the PAM. The melting temperature, the glass transition, as well as the equilibrium swelling ratio, depend on the films' composition. PAM showed a transmittance of 87%, that increased to 90% after PVA addition, but decreased to 74% after MgO loading. Meaningful changes are observed in the extinction coefficient and indirect/direct band gap of PAM due to PVA blending and MgO addition. The influence of MgO NPs on the dielectric constant ( ɛ′) of the blend film is reported. The maximum value of AC conductivity of the blend is 4.77 × 10−3 Sm−1, which increased to 8.07 × 10−3 Sm−1 by increasing the MgO loading to 5.0 wt.%. The conduction mechanism changed from the correlated barrier hopping, in the blend, to the large Polaron tunneling with MgO loading. The observed improvements in optical properties and AC conductivity encourage the use of these nanocomposite films in the semiconductors industry.

Modifier role of ZnO on the structural and transport properties of lithium boro tellurite glasses

To study the modifier role of ZnO on the structural and transport properties, the quaternary glass system xZnO-(30-x) Li2O-10TeO2–60B2O3 (x = 0, 5, 10, 15 and 20 mol%) was prepared by the conventional melt quenching technique. Amorphous nature of the prepared glasses was confirmed by X-ray diffraction studies. Density (ρ) of the glass samples was measured by Archimedes' principle and it was found to vary non-linearly between 3.06 and 3.44 g/cm3 with the addition of heavy metal oxide (ZnO) mole concentration. Oxygen packing density (OPD) values also varied non-linearly between 66.78 and 74.69 g atm/1. Glass transition temperature (Tg) of the glass system was measured using temperature modulated differential scanning calorimeter and Tg was found to increase from 429 °C-449 °C with the increase of ZnO content. Based on the density and molecular weight of the glass composition, mechanical properties like Young's modulus (E), Shear modulus (S), Bulk modulus (K) etc., have been calculated with the help of Makishima-Mackenzie model in terms of the packing ratio (Vρ) and dissociation energy (Gt). FTIR and Raman spectroscopy studies reveal that the glass network consists of various types of BO3, BO4 units along with TeO3, TeO4 and ZnO4 structural units. To study transport properties, AC conductivity measurements were carried out on the glass system in the frequency range 5 Hz-35 MHz and it was observed that the ionic conductivity plays significant role. At low temperatures (30 °C and 50 °C) the results of conductivity did not give good results. AC conductivity of the studied glass system is increased with increase in frequency and temperature. The highest value of AC conductivity of the glass network is of the order 10−2 Ω−1 cm−1. Impedance plots (Cole-Cole) exhibited semicircle behaviour.