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Radiation effects, photoluminescence and radioluminescence of Eu-doped (Y0.7Gd0.3)2O3 nanoparticles with various sizes
(Optical Materials, 2018)
(Y1-xLnx)2O3 oxides (Ln = Y, Gd, Lu) doped with Eu3+ ions are widely used as commercialized scintillators in medical and industrial scanning applications, with high performance and attractive properties. In this work, ...
Photoluminescence properties of nano-sized (Lu1-xYx)PO4:Pr3+ (x = 10, 20, 30, 40, 50 at. %) phosphor powders
(Optical Materials, 2020)
Herein we present the enhancement of photoluminescence properties of nano-sized LuPO4:Pr3+ phosphor powders synthesized by sol gel process with incorporation of yttrium ions inside of this single matrix to obtain ...
Up-conversion luminescence of GdVO4:Nd3+/Er3+ and GdVO4:Nd3+/Ho3+ phosphors under 808 nm excitation
(Optical Materials, 2018)
© 2018 Elsevier B.V. In recent years, there exists a tendency in research of up-conversion materials to shift excitation from 980 nm to shorter wavelengths. Here, in order to produce up-conversion luminescence emission of ...
Annealing effect on the photoluminescence properties of Ce3+ doped YPO4 nanophosphors
(Optical Materials, 2019)
This work explores the influence of annealing temperature on microstructural and optical characteristics of Ce 3+ - doped YPO 4 nanopowders prepared by sol gel method. Samples were annealed at various temperatures (T = ...
A facile self-passivation strategy for improving moisture-resistance of fluoride red phosphors without surface modification
(Optical Materials, 2021)
Mn4+-activated fluorides rank among the most significant red phosphors for white light emitting diodes (LEDs) with enhanced color rendition, while their poor moisture resistance hinders further application. Surface coating ...
High resolution luminescence spectroscopy and thermoluminescence of different size LaPO4:Eu3+ nanoparticles
(Optical Materials, 2018)
Nanoparticles (5 nm) and nanorods (2 nm × 15 nm and 4 nm × 20 nm) of monoclinic monazite LaPO4:Eu3+were prepared by reverse micelle and co-precipitation techniques. Effects of the particle size and surface defects on the ...
Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles
(Optical Materials, 2019)
EuPO4 and Eu3+-activated REPO4 (RE = La, Dy, Er) ultrasmall fluorescent nanoparticles (NPs) with an average diameter of 2.1 nm were prepared via colloidal synthesis and tested for sensing Cu2+ and other heavy-metal ions. ...
The enhancement of emission intensity and enlargement of color gamut by a simple local structure substitution with highly thermal stability preserved
(Optical Materials, 2019)
The local crystal structure engineering becomes an important strategy to design new phosphors with enhanced optical and thermal performance of white light-emitting diodes. Herein, a series of Na3Sc2(PO4)3: Eu2+ and ...
Colloidal crystals based portable chromatic sensor for butanol isomers and water mixtures detection
(Optical Materials, 2019)
In this work, we report on a structurally-colored composite colloidal crystal able to change its color in presence of different polar solvents such as butanol and to distinguish its isomers. Herein, polydimethylsiloxane ...
Luminescence Intensity Ratio thermometry and Judd-Ofelt analysis of TiO2:Eu3+
(Optical Materials, 2018)
Luminescence thermometry on europium doped TiO2 films, prepared by the plasma electrolytic oxidation, was investigated by the Luminescence Intensity Ratio method. The performance of the material for temperature sensing was ...