A5070179482- Luminescence Properties of Advanced Materials
- Gas Sensing Nanomaterials and Sensors
- Quantum Dots Synthesis And Properties
- Transition Metal Oxide Nanomaterials
- Perovskite Materials and Applications
- ZnO doping and properties
- Glass properties and applications
- Radiation Detection and Scintillator Technologies
- Carbon and Quantum Dots Applications
- Lanthanide and Transition Metal Complexes
- Atomic and Subatomic Physics Research
- Advanced Photocatalysis Techniques
- Catalysis and Oxidation Reactions
- Analytical Chemistry and Sensors
- Inorganic Fluorides and Related Compounds
- Molecular Sensors and Ion Detection
- Copper-based nanomaterials and applications
- Inorganic Chemistry and Materials
- Dendrimers and Hyperbranched Polymers
- TiO2 Photocatalysis and Solar Cells
- Nanocluster Synthesis and Applications
- Analytical chemistry methods development
- Luminescence and Fluorescent Materials
- Electrochemical Analysis and Applications
Academy of Scientific and Innovative Research
2015-2023
Council of Scientific and Industrial Research
2023
National Chemical Laboratory
2013-2021
Manipur University
2009-2012
Ce(3+)- and Eu(3+)-doped YPO(4) nanorods have been prepared at relatively low temperature (120 degrees C). A detailed investigation of the role Ce(3+) concentration up to 10 atom % on luminescence intensity Eu(3+) in has carried out. Phase transformation from a tetragonal hexagonal structure occurs with increasing concentrations, water molecules are also associated during phase transformation. Thermal study shows that can be retained 800 C structure. Interestingly, returns annealing above...
YPO(4) nanoparticles codoped with Eu(3+) (5 at. %) and Bi(3+) (2-10 have been synthesized by a simple coprecipitation method using polyethylene glycol-glycerol mixture, which acts as capping agent. It has found that the incorporation of ions into YPO(4):Eu(3+) lattice induces phase transformation from tetragonal to hexagonal, also significant decrease in luminescence intensity was observed. This is related association water molecules hexagonal nonradiative process surrounding around...
Lanthanide ions (Ln3+ = Eu3+, Dy3+, Tm3+) doped YVO4 and silica coated YVO4:Ln3+ (YVO4:Ln3+@SiO2) nanoparticles have been prepared by a microemulsion route using Cetyl trimethyl ammonium bromide (CTAB)/n-butanol/hexane/water. Average crystallite sizes of annealed at 500 900 °C are found to be ∼30 ∼80 nm, respectively. Successful coating the on core could observed transmission electron microscopy. The silanol group (SiO–H) is present in samples (heated up °C) acts as luminescence quencher....
Sm3+ ion doped tetragonal SnO2 nanoparticles have been synthesized by the polyol method and its concentration annealing effects on photoluminescence properties are studied. The XRD results show changes of lattice parameters with incorporation into host lattices. Fourier transform infrared (FTIR) data indicate formation a Sn–O bond capping ethylene glycol. broad emission peaks observed around 350 to 550 nm attributed from defects or traps present in SnO2. typical there is efficient energy...
A poly(amido amine) (PAMAM) dendrimer has been successfully used for the first time as a linking agent synthesis of luminescent lanthanide based multifunctional nanohybrid (YPO4:Tb3+@Fe3O4). Characterization materials was done by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), and thermogravimetric analysis (TGA). The HRTEM images showed spindle shaped YPO4:Tb3+@Fe3O4 in presence PAMAM which...
“A novel approach for detecting highly explosive aromatic nitro compounds utilizing pABA sensitised terbium (Tb<sup>3+</sup>) doped spherical LaF<sub>3</sub> nanoparticles.”
Trace level detection of water by 2-thenoyltrifluoroacetone Surface functionalised fluorescent lanthanide (Eu<sup>3+</sup>) doped SrF<sub>2</sub> nanoparticles.
Precision engineering of defects in luminescent nanoscale crystalline materials with lesser controls to design is an area interest desired properties. Li+ co-doped BaYF5 nanocrystals were engineered, and temperature as for determining the co-dopant occupancies host lattice studied. An observed enhancement up-conversion photoluminescence results from occupancy at Ba2+ sites via substitution through hot injection method, whereas samples prepared using co-precipitation, quenching was observed,...