A5024493644- Luminescence Properties of Advanced Materials
- Glass properties and applications
- Microwave Dielectric Ceramics Synthesis
- Radiation Detection and Scintillator Technologies
- Nanowire Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Advanced Photocatalysis Techniques
- Solar-Powered Water Purification Methods
- Electrocatalysts for Energy Conversion
- MXene and MAX Phase Materials
- Solid-state spectroscopy and crystallography
- Perovskite Materials and Applications
- Advanced battery technologies research
- 2D Materials and Applications
- Phase-change materials and chalcogenides
Panjab University
2022-2025
With an intend to develop white light emitting phosphor, for w-LED application, a series of dysprosium (Dy3+) doped novel Na3Ba2LaNb10O30 phosphors were prepared using solid state reaction technique at 1300 °C. Their structural, morphological and vibrational spectroscopic analysis was performed. We illustrate the luminescence characteristics various Dy3+ ion doping concentration. The XRD demonstrates that in single phase, tetragonal tungsten bronze structure P4bm space group. FE-SEM image...
In this study, we report the successful synthesis and thorough characterization of Eu
This paper investigates the synthesis and luminescence characteristics of Tm3+/Tb3+/Eu3+ co-doped Sr4Nb2O9 (SNB) phosphors as potential candidates for white light-emitting diodes (WLEDs). The study explores energy transfer mechanisms color-tunable these phosphors. SNB were prepared using a solid-state reaction method, their structural morphological properties characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), Fourier-transform...
In this report, we present a comprehensive explanation of the luminescent features Dy3+-ions doped Zinc Sodium Lead Borate (ZnNaPbB) glasses through various characterizations like UV–Vis-NIR, absorption and emission spectroscopy. The spectra were used to determine optical bandgap (Eopt) Urbach energy (ΔE). are dominated by three peaks (strong yellow, blue weak red) in visible range at 481 nm, 575 nm 664 nm. CIE coordinates lie pure white region chromaticity diagram indicating that...
Europium-doped niobate-based phosphors were synthesized via solid-state reaction, exhibiting promising luminescent properties. These demonstrate efficient red emission under near-UV/blue excitation, making them strong candidates for enhancing color rendering in white LEDs.
Rare-earth doped crystalline materials are of significant interest for photonic and optoelectronic applications, particularly in phosphor-converted white-light-emitting diodes (pc-WLEDs), which offer high brightness, energy efficiency, compact size, durability, environmental friendliness. However, pc-WLEDs lack a red color component. To address this, europium-doped niobate-based phosphors were synthesized using high-temperature solid-state reaction technique at 1300°C[1].
A series of dysprosium doped niobate-based phosphor was successfully synthesized for the first time. Their crystal structure and steady-state luminescence characteristics were investigated. Study CIE chromaticity diagram showed its potential application in w-LED.