Synthesis and characterization of Y1XVO4 : EuX 3+ nanoparticles by using starch as an impregnating matrix
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초록
The nano-sized Y1XVO4 : EuX3+ powders were synthesized by impregnation method using starch and metal salts(Y;YCl3 • 6H2O,V;VOSO4 • 6H2O, Eu;EuCl3 • 6H2O) as starting materials. The synthesized powders were characterized by XRD, FE-SEM andPhotoluminescence. The particle size of the powders were controlled by preparation conditions, such as heat treatmenttemperature and concentration of Eu ion. As a result of the various synthesis conditions, 30 ~ 100 nm sized homogeneousY1XVO4 : EuX3+ particles were obtained at 600-800 oC for 3 hour. Crystallization and the growth of particles were acceleratedwith increasing sintering temperature and concentration of Eu ion. Crystallization of Y1XVO4 : EuX3+ started around 500 oC,which the temperature is pyrolysis of starch, tetragonal phase generated at 600 oC. Moreover, above 600 oC, heat treatment timehad influence on particle growth, and change of the concentration of Eu ion had also influence on growth of a crystal. Emissionintensity of Y1XVO4 : EuX3+ particles were enhanced with increasing heat treatment temperature and concentration of Eu ion.
Abstract
The nano-sized Y1XVO4 : EuX3+ powders were synthesized by impregnation method using starch and metal salts(Y;YCl3 • 6H2O,V;VOSO4 • 6H2O, Eu;EuCl3 • 6H2O) as starting materials. The synthesized powders were characterized by XRD, FE-SEM andPhotoluminescence. The particle size of the powders were controlled by preparation conditions, such as heat treatmenttemperature and concentration of Eu ion. As a result of the various synthesis conditions, 30 ~ 100 nm sized homogeneousY1XVO4 : EuX3+ particles were obtained at 600-800 oC for 3 hour. Crystallization and the growth of particles were acceleratedwith increasing sintering temperature and concentration of Eu ion. Crystallization of Y1XVO4 : EuX3+ started around 500 oC,which the temperature is pyrolysis of starch, tetragonal phase generated at 600 oC. Moreover, above 600 oC, heat treatment timehad influence on particle growth, and change of the concentration of Eu ion had also influence on growth of a crystal. Emissionintensity of Y1XVO4 : EuX3+ particles were enhanced with increasing heat treatment temperature and concentration of Eu ion.
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