PREPARATION OF LUMINESCENT MATERIALS BaMoO4:Eu3+ BY HIGH TEMPERATURE BALL MILLING
Received date: 2010-04-15
Revised date: 2010-04-27
Online published: 2010-07-11
Supported by
Supported by National Natural Science Foundation of China (No.10874022)
BaMoO4:Eu3+ phosphors were synthesized by high temperature ball milling method and using (NH4)6Mo7O24?4H2O, BaCO3 and Eu2O3 as raw materials. Crystalline phases, morphology and luminescent properties of sample were characterized by XRD, SEM and emission spectra. XRD patterns indicated that a single phase of BaMoO4:Eu3+ can be obtained by 4 h ball milling at\linebreak 600℃, with 15% Eu3+ (mole fraction) dopped concentration. Photolumincence experiment results showed that the emission is a line spectrum and the main peak is located at visible red light\linebreak (616 nm). The synthesized temperature was decreased about 400℃ while the dopped Eu3+ concentration was increased about 7\% than those of chemical deposited method. The BaMoO4:Eu3+ powders has considerable luminescent intensity prepared under the optimum technological conditions. In the high temperature ball milling process, the cooperation action of milling and temperature, significantly increased the activation energy of the reaction system.
CHEN Xue-Bing , TIAN Pan-Wen , SHAO Zhong-Bao . PREPARATION OF LUMINESCENT MATERIALS BaMoO4:Eu3+ BY HIGH TEMPERATURE BALL MILLING[J]. Acta Metall Sin, 2010 , 46(7) : 862 -866 . DOI: 10.3724/SP.J.1037.2010.00183
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