Morphology Control of Phosphors Synthesized by Microwave Heating Method

Ayano Toda; Kazuyoshi Uematu; Tadashi Ishigaki; Kenji Toda; Mineo Sato

doi:10.4028/www.scientific.net/KEM.445.233

Paper Titles

Effect of Substrate on Growth Mechanism of Flower Structured InN Fabricated by APHCVD
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Characteristics of Hot Spot Oxygen Sensor Using GdBa₂Cu₃O_7-δ Ceramic Rod with Gd₂BaCuO₅ Core
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Low Temperature Synthesis Method of La₂O₂S₂ and Evaluation of the Photocatalytic Activity
p.217

Photoluminescence in Bazirite Crystal by Addition of Impurity Ions
p.221

Low-Frequency Inelastic Light Scattering of Glassy Ba₂TiGe₂O₈ during Heating Process
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Effects of LiF Addition in Lithium Ion Conductor La_0.56Li_0.33TiO₃
p.229

Morphology Control of Phosphors Synthesized by Microwave Heating Method
p.233

Effects of Zr and Y Addition on the Electrical Degradation Characteristics of ZnO Varistors
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Effect of Ba Addition on Electrical Characteristics of Bi-Based ZnO Varistors
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 445Morphology Control of Phosphors Synthesized by...

Morphology Control of Phosphors Synthesized by Microwave Heating Method

Abstract:

Ba2Gd3Li3Mo8O32:Eu3+ phosphor was prepared using a single mode microwave oven operated at a frequency of 2.45 GHz and a power of 500 W. The temperature of raw materials, mixtures of BaCO3, Gd2O3, Li2CO3, MoO3 and Eu2O3 subjected to microwave irradiation increased to about 1073 K in 120 s, followed by a sharp drop despite irradiating the raw materials continuously. By measuring the dielectric loss factor of the raw materials at 2.45 GHz, the temperature increased could be attributed to the fact that MoO3 absorbs a high proportion of microwave energy. In the case of the microwave heating method, the phosphor particles were highly non-aggregated.

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Key Engineering Materials (Volume 445)

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233-236

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.445.233

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July 2010

Authors:

Ayano Toda, Kazuyoshi Uematu, Tadashi Ishigaki, Kenji Toda, Mineo Sato

Keywords:

Microwave Heating, Phosphor, Red Emission

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