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Research Interest 

⮚ Perovskites ⮚ Ferroelectrics ⮚ Dielectrics ⮚ Impedance/Modulus spectroscopy ⮚ Energy Storage ⮚ Piezoelectric properties ⮚ Electrocaloric effect ⮚ Multiferroic properties ⮚Magneto-Dielectric ⮚Defect states study ⮚ Piezoelectric energy harvester ⮚ Device fabrication using Thin-film Technology ⮚ Piezo-photocatalysis 

Experimental Condensed Matter Physics:

● Synthesis of Chemically Modified Sodium Bismuth Titanate (NBT), Barium Titanate (BT), and Copper Oxide (CuO), Zinc Titanates (ZnTiO3, Zn2TiO4, etc.)

● Structure-Property Correlation

● Temperature-dependent Dielectric and Ferroelectric Properties and Raman Spectroscopy

● Room Temperature Multiferroic Properties

● Magneto-Dielectric Properties 

● Electrocaloric Effect

● Effect of variance of Ionic Size and Valence State on Optical and Electrical Properties

● Effect of electric and magnetic field on structure and properties 

Characterization Techniques:

X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), Energy Dispersive X-ray Spectroscopy (EDX), X-Ray Photoluminescence Spectroscopy (XPS), Raman Spectroscopy, UV-Vis measurement, PE-loop tracer, Dielectric Measurement, AC Conductivity, Complex Impedance Spectroscopy

Synthesis Techniques:

Sol-gel, Hydrothermal, Microwave

COMPLETED PROJECTS:

  • Investigating the electrocaloric effect in the Na0.47Bi0.47Ca0.06-xBaxTiO3 lead-free ceramics.

  • Effect of poling on the Structure, Vibrational, and Electrical properties of Na0.47Bi0.47Ca0.06-xBaxTiO3 lead-free ceramics.

  • Room Temperature Magneto-Dielectric Coupling in the CaMnO3 modified NBT lead-free ceramics.

  • Effect of Mn doping on the Structural, Optical, and Vibrational properties of ZnTiO3.

  • Theoretical and experimental insight on defect dipole induced improved electrocaloric response in Fe and Mn modified Na0.47Bi0.47Ba0.06Ti0.98-xV0.02O3 lead-free ceramics.

  • Structure Correlated Vibrational, Optical, and Electrical Properties of Fe doped Na0.47Bi0.47Ba0.06Ti0.98-xV0.02FexO3.

ONGOING PROJECTS:

  • Piezo-photocatalysis of modified NBT based nanostructures grown using Electrospinning.

  • Ferroelectric memory Device fabrication of lead-free ceramics using sputtering and spin coating.

  • Fabrication of polymer ceramic composite for piezoelectric energy harvesting and piezo-photocatalysis.