A5027543025- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Metamaterials and Metasurfaces Applications
- Carbon Nanotubes in Composites
- Graphene research and applications
- Dielectric materials and actuators
- Ferroelectric and Piezoelectric Materials
- Electromagnetic wave absorption materials
- Semiconductor materials and devices
- Copper-based nanomaterials and applications
Malaviya National Institute of Technology Jaipur
2016-2022
Discovery of plasmon resonance and negative permittivity in carbon allotropes at much lower frequencies than those metals has evoked interest to develop random metacomposites by suitable means addition these dispersoids an overall dielectric matrix. Random have always the advantage for their easy preparation techniques over regular arrayed artificial counterpart. However, thermal management during heat generation electromagnetic attenuation metamaterials is not yet studied well. The present...
In this paper the effect of different acid oxidation on morphology, dispersion and optical band gap multi-walled carbon nanotubes (CNTs) is reported. Oxidation CVD synthesized MWCNTs were carried out in 8M HNO3, H2SO4, HNO3/H2O2 H2SO4/HNO3. Oxidized sample characterized by XRD, SEM, FT-IR, TGA, UV-Vis spectroscopy Raman analysis. Oxidized-nanotubes show a lower shift XRD peak an increase d-spacing, which implies deterioration MWNTs. New peaks FT-IR spectra oxidized-nanotube samples at around...
A series of Cr-doped ZnO thin film has been prepared by E-Beam evaporation technique. These films were characterized for finding change or variation in the structural, morphological, optical properties due to varying doping concentration Cr using X-Ray diffraction(XRD), Scanning electron microscopy(SEM), UV-vis spectroscopy and Photoluminescence (PL) spectrometry. The crystallite size root mean square roughness (rms) found be range 14 22 nm 7 28nm respectively various films. absorption was...