EFFECT OFZnADDITION ON LUMINESCENCE OFY₂O₃:EuNANOPOWDERS USING SOLUTION COMBUSTION METHOD

Abstract

In this study, the effect of Zn doping on photoluminescence, Chromaticity and structural properties of Y2O3:Eu compound were studied. For this purpose, various Y2O3:Eu samples containing different Zn 2+ concentration and distribution were prepared by combustion method. The resultant samples were characterized by X-ray diffractometry (XRD), Photoluminescence spectroscopy (PL) and scanning electron microscopy (SEM). The XRD patterns of samples were also examined by Rietveld refinement method and results showed that the samples had nano-sized crystallites. It has been also shown that doping of Zn 2+ ion in structure of Y2O3:Eu compound can effectively enhance the PL intensity and chromaticity of Y2O3:Eu compound, while doping of Zn at surface of Y2O3:Eu powder reduces PL intensity, crystallinity and chromaticity of this compound.

Solution combustion synthesis of FeCr 2 O 4 powders for pigment applications: Effect of fuel type

“…showed that in the synthesis of ZnO/ZnS nanoparticles, ethylene glycol and glycine could react as fuel properly. Tohidlou et al 29 . showed that ZnO nanoparticles were obtained using urea fuel.…”

“…27 Also, Zahiri et al 20,28 showed that in the synthesis of ZnO/ZnS nanoparticles, ethylene glycol and glycine could react as fuel properly. Tohidlou et al 29 showed that ZnO nanoparticles were obtained using urea fuel. The effect of fuel type and the increase of specific surface area by glycine fuel in Gd 2 O 3 -Y 2 O 3 :Eu system was also reported.…”

Studies on organic-mediated synthesis of Y2O3:Eu3+ nanophosphors and its temperature-dependent photoluminescence properties

“…Doping of Eu 3+ ions into the Y2O3 host lattice can cause enhanced luminous efficiency, resulting from the tunable energy transport between the host matrix and Eu 3+ ions. Y2O3:Eu 3+ red phosphors have broad applications in fluorescence labelling, the back color of liquid crystal displays, luminescent paints and inks for security codes, optical memories, tricolor lamps, biomedical labelling of genes and chromosomes, etc [9][10][11][12][13].…”

Studies on Organic Mediated Synthesis of Y 2 O 3 :Eu 3+ Nanophosphors and its Temperature Dependent Photoluminescence Properties

“…Doping of Eu 3+ ions into the Y2O3 host lattice can cause enhanced luminous efficiency, resulting from the tunable energy transport between the host matrix and Eu 3+ ions. Y2O3:Eu 3+ red phosphors have broad applications in fluorescence labelling, the back color of liquid crystal displays, luminescent paints and inks for security codes, optical memories, tricolor lamps, biomedical labelling of genes and chromosomes, etc [9][10][11][12][13].…”

“…Various approaches like gas-phase condensation, co-precipitation, sol-gel, pyrolysis, combustion, and hydrothermal or solvothermal method were used to synthesize high-quality Y2O3:Eu 3+ nanophosphors [10,11].Combustion is a simple, cost-effective, and less timeconsuming synthesis technique [13,14]. In the present work, Y2O3:Eu 3+ nanophosphors are fabricated using the organic mediated combustion method with polyethylene glycol as mineral and citric acid as fuel.…”