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N. D. Q. ANH1, H. Y. LEE2,*
The vanadate material LiCa2Mg2V3O12 (LCMV) can serve as an excellent host matrix for the introduction of Eu3+ rare-earth ions as red luminescent centers to enhance the red emission component. To achieve this, we synthesized Eu3+ -doped LCMV phosphors using the conventional solid-state reaction route. The energy transfer mechanisms occurring between (VO4) 3- groups and Eu3+ ions within the material were investigated with the emission decay curve calculation. We also integrated titanium dioxide (TiO2) nanoparticles with the prepared red phosphors and silicone gel, creating a color converter suitable for an LED lamp that emits warm white light. The light output of the LED was controlled by varying the concentration of TiO2 in the layer. The obtained results highlighted the potential of this vanadate-based red phosphor doping TiO2 composite as a promising converter for LED applications within the lighting and display sectors.
White LED, Red phosphor, Titanium dioxide, Color rendering index, Luminous efficacy.
N. D. Q. ANH, H. Y. LEE, Titanium dioxide in vanadate red phosphor compound for conventional white light emitting diodes, Optoelectronics and Advanced Materials - Rapid Communications, 18, 9-10, September-October 2024, pp.480-484 (2024).
Submitted at: Dec. 6, 2023
Accepted at: Oct. 2, 2024
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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