A5012070508- Luminescence Properties of Advanced Materials
- Radiation Detection and Scintillator Technologies
- Solid-state spectroscopy and crystallography
- Gas Sensing Nanomaterials and Sensors
- bioluminescence and chemiluminescence research
- Microwave Dielectric Ceramics Synthesis
- Ammonia Synthesis and Nitrogen Reduction
- Luminescence and Fluorescent Materials
- Advanced Chemical Sensor Technologies
- Quantum Dots Synthesis And Properties
- Nuclear materials and radiation effects
- Advanced Photocatalysis Techniques
- Chalcogenide Semiconductor Thin Films
- Polydiacetylene-based materials and applications
- Perovskite Materials and Applications
- Solid State Laser Technologies
- Chemical and Physical Properties of Materials
- Glass properties and applications
- Acoustic Wave Resonator Technologies
- Photorefractive and Nonlinear Optics
- Free Radicals and Antioxidants
- Transition Metal Oxide Nanomaterials
- NMR spectroscopy and applications
- Radioactive element chemistry and processing
- Atomic and Subatomic Physics Research
Indira Gandhi National Tribal University
2022-2024
Pandit Ravishankar Shukla University
2012-2017
Raipur Municipal Corporation
2016
This paper reports the thermoluminescence properties of Er3+ doped gadolinium oxide nanophosphor. The phosphor is prepared by high temperature solid state reaction method. method suitable for large scale production. Starting materials used sample preparation were Gd2O3, Er2O3 (0.5–2.5 mol%) and fixed concentration boric acid using as a flux. samples characterized X-ray diffraction technique particle size calculated Scherer's formula. surface morphology determined scanning electron...
Gd 2 O 3 :Yb 3+ phosphor has been synthesized by the solid state reaction method with boric acid used as a flux. The resulting was characterized X-ray diffraction (XRD) technique, Fourier transmission infrared spectroscopy (FTIR), scanning electron microscope (SEM) and (TEM), photoluminescence thermoluminescence. results of XRD show that obtained cubic structure. average crystallite sizes could be calculated 42.9 nm, confirmed TEM results. study suggested Yb doped phosphors are potential...
Er3+/Yb3+-codoped Gd2O3 phosphors have been synthesized by combustion method and solid-state reaction method. The prepared were compared for their structural, morphological, optical properties. phosphor is of monoclinic phase, whereas the formed cubic phase. structural properties carried out PXRD analysis. crystallinity morphology evaluated SEM TEM analysis, parameters are in good relation to results. All both methods found be nanometer range. particle size higher upconversion spectra under...
In this paper, different concentrations of tetravalent manganese-activated lithium meta-silicate red-emitting phosphors, namely Li2SiO3:xMn4+ (x = 0.01, 0.02, 0.03, 0.04 and 0.05 mol), have been prepared by the solid-state reaction method at 950 °C. The structural, thermal, morphological, optical properties sintered phosphors were characterized powder X-ray diffractometry (PXRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), electron microscopy (SEM), fourier...
Europium doped strontium meta-silicate (namely SrSiO3:Eu3+) phosphor was prepared by a high temperature solid state reaction method. The sintered SrSiO3:Eu3+ possesses monoclinic structure the XRD. Energy dispersive X-ray spectrum (EDS) confirms presence of elements in desired sample. Thermoluminescence (TL) kinetic parameters such as activation energy (E), order kinetics (b), and frequency factor (s) were calculated peak shape orange–red emission shown to originate from 5D0–7FJ (J = 0, 1,...
Er<sup>3+</sup>doped Gd<sub>2</sub>O<sub>3</sub>phosphors were prepared<italic>via</italic>a combustion synthesis method. The prepared phosphor emits visible green colour.
Abstract CaZrO3:xEu3+ (x = 1.0, 2.0, 3.0, 4.0, and 5.0 mol%) phosphors were successfully prepared by a solid state reaction method. The crystal structure of sintered was hexagonal phase with space group Pm-3m. near ultra-violet (NUV) excitation, emission spectra the composed sharp line associated transitions from excited states 5D0 to ground 7Fj (j = 0, 1, 2, 3, 4) Eu3+. results indicated that might become an important orange-red phosphor candidate for use in white light emitting diodes...
A monoclinic Gd<sub>2</sub>O<sub>3</sub>:Yb<sup>3+</sup> phosphor was prepared using the combustion synthesis method.