Synthesis, Impedance and Current-Voltage Spectroscopic Characterization of Novel Gadolinium Titanate Nano Structures
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
Publication Date (Web): Mar 25, 2021
Copyright © IAAM-VBRI Press
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.
GdTiO3, Electrical Properties, Impedance, Power dissipation, Current-Voltage, Nanostructures.