TELKOMNIKA Telecommunication, Computing, Electronics and Control
Surface coated red phosphors with silica nanoparticles and silica nanocomposites: performance modifications
Dublin Core
Title
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Surface coated red phosphors with silica nanoparticles and silica nanocomposites: performance modifications
Surface coated red phosphors with silica nanoparticles and silica nanocomposites: performance modifications
Subject
Color uniformity, Luminous flux, Mie-scattering theory,SiO2@LaOF:Eu3+
Description
Surface coverings using nanomaterials of silica nanoparticles and poly
(methyl methacrylate) – abbreviated “PMMA-silica nanomaterials” – are
introduced to the Y2O2S:Eu3+ phosphor through four distinct approaches. The objective is to enhance Y2O2S:Eu3+ phosphorescence and prolonged sustainability. Using immerse-daubing along with sol-gel approach (Stober way), it is possible to have Y2O2S:Eu3+ phosphors covered with relatively-monodisperse nano-silica particles (5 nm). To create the silica nano-crystals employed in the coating process of phosphors, we carry out concurrently hydrolysis and condensation procedures to develop the formation and basic polymerization utilizing poly (1-vinyl-2-pyrrolidone). The surface coating layer for Y2O2S:Eu3+ spheres, which comprises polymethyl methacrylate (PMMA)-silica nanocomposites, can be formed in two ways: by combining silica nanogranules with methyl methacrylate (MMA) monomer as well as through subjecting MMA to tetraethyl orthosilicate (Si(OC2H5)4) chemical compound. The latter approach demonstrated is considered the highest augmentation in phosphorescence and prolonged sustainability for Y2O2S:Eu3+ spheres. Specifically, when using the second approach to get PMMA-silica phosphor coating, Y2O2S:Eu3+ exhibited a 5-percent increase in the phosphorescent intensity, compared to untreated phosphors. Contrary to a drop in cathode
phosphorescence (CP) output and a rising bombardment duration for
exposed phosphor, the latter technique produces a practically constant CP energy with PMMA-silica nanocomposite covered phosphors.
(methyl methacrylate) – abbreviated “PMMA-silica nanomaterials” – are
introduced to the Y2O2S:Eu3+ phosphor through four distinct approaches. The objective is to enhance Y2O2S:Eu3+ phosphorescence and prolonged sustainability. Using immerse-daubing along with sol-gel approach (Stober way), it is possible to have Y2O2S:Eu3+ phosphors covered with relatively-monodisperse nano-silica particles (5 nm). To create the silica nano-crystals employed in the coating process of phosphors, we carry out concurrently hydrolysis and condensation procedures to develop the formation and basic polymerization utilizing poly (1-vinyl-2-pyrrolidone). The surface coating layer for Y2O2S:Eu3+ spheres, which comprises polymethyl methacrylate (PMMA)-silica nanocomposites, can be formed in two ways: by combining silica nanogranules with methyl methacrylate (MMA) monomer as well as through subjecting MMA to tetraethyl orthosilicate (Si(OC2H5)4) chemical compound. The latter approach demonstrated is considered the highest augmentation in phosphorescence and prolonged sustainability for Y2O2S:Eu3+ spheres. Specifically, when using the second approach to get PMMA-silica phosphor coating, Y2O2S:Eu3+ exhibited a 5-percent increase in the phosphorescent intensity, compared to untreated phosphors. Contrary to a drop in cathode
phosphorescence (CP) output and a rising bombardment duration for
exposed phosphor, the latter technique produces a practically constant CP energy with PMMA-silica nanocomposite covered phosphors.
Creator
Phuc Dang Huu, Tri-Vien Vu
Source
DOI: 10.12928/TELKOMNIKA.v20i6.24084
Publisher
Universitas Ahmad Dahlan
Date
December 2022
Contributor
Sri Wahyuni
Rights
ISSN: 1693-6930
Relation
http://journal.uad.ac.id/index.php/TELKOMNIKA
Format
PDF
Language
English
Type
Text
Coverage
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Files
Collection
Citation
Phuc Dang Huu, Tri-Vien Vu, “TELKOMNIKA Telecommunication, Computing, Electronics and Control
Surface coated red phosphors with silica nanoparticles and silica nanocomposites: performance modifications,” Repository Horizon University Indonesia, accessed March 9, 2025, https://repository.horizon.ac.id/items/show/4473.
Surface coated red phosphors with silica nanoparticles and silica nanocomposites: performance modifications,” Repository Horizon University Indonesia, accessed March 9, 2025, https://repository.horizon.ac.id/items/show/4473.