Synthesis, Impedance and Current-Voltage Spectroscopic Characterization of Novel Gadolinium Titanate Nano Structures Synthesis, Impedance and Current-Voltage Spectroscopic Characterization of Novel Gadolinium Titanate Nano Structures

Synthesis, Impedance and Current-Voltage Spectroscopic Characterization of Novel Gadolinium Titanate Nano Structures

Vinayak M Adimule1,*, Debdas Bhowmik2, Adarsha Haramballi Jagadeesha3

1VTU Recognized Research Centre of Chemistry, Department of Chemistry, Angadi Institute of Technology and Management (AITM), Savagaon Road, Belagavi 5800321, Karnataka, India

2High Energy Materials Research Laboratory, Défense Research and Development Organization, Ministry of Defence, Government of India, Sutarwadi, Pune 411021, India

3Centre for Research in Medical Devices, National University of Ireland, Gaillimh, Galway- H91TK33, Ireland

Adv. Mater. Lett., 2021, 12 (6), 21061638

DOI: 10.5185/amlett.2021.061638

Publication Date (Web): Mar 25, 2021

E-mail: adimulevinayak@yahoo.in

Abstract


Gadolinium (Gd) doped titanate nanostructures (NS) with a new set of 10-50 wt. % of Gd were synthesized by microwave-assisted hydrothermal and reduction using hydrazine hydrate. The crystal structure has been evaluated with SEM (scanning electron microscopy) analysis exhibited rod like geometry of nanoparticles (NPs). XRD (X-ray diffraction spectroscopy) analysis of GdTiO3 and undoped titanate nanostructure (NS) intense peak exhibited crystal tetragonal structure. CV (cyclic voltammetry) exhibited an oxidation potential of 50 wt. % of GdTiO3 was found to be - 0.54 eV. UV-Visible spectroscopic revealed absorptivity of 50 wt. % of GdTiO3 was found to be 650 nm (visible region) and undoped titanate absorptivity at 320 nm (UV region). The pelletized nanostructures of GdTiO3 were investigated for current-voltage (I-V), capacitance-voltage (C-V), resistance-voltage (R-V) measurements, which showed frequency range in between 1 kHz to 2 MHz and 50 wt. % GdTiO3 NS showed a decreasing trend in admittance value with an increase in frequency. However, an increase in the conductance, power dissipation values with a decrease in resistivity, and increase in the frequency has been noticed which embark considerable variation in conductivity and power dissipation in GdTiO3 NS. The results from the plots of current-voltage (I-V), capacitance-voltage (C-V), and bias voltage with an applied frequency of the GdTiO3 NS has been discussed.

Keywords

GdTiO3, Electrical Properties, Impedance, Power dissipation, Current-Voltage, Nanostructures.

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