Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis

Dae Soo Jung; Jung Sang Cho; Hye Young Koo; Yun Chan Kang

doi:10.1016/j.jallcom.2008.04.077

Characteristics of Ce_0.6Tb_0.4MgAl₁₁O₁₉ phosphor powders prepared by high temperature flame spray pyrolysis

Dae Soo Jung, Jung Sang Cho, Hye Young Koo, Yun Chan Kang

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Flame spray pyrolysis was introduced to prepare Ce_0.6Tb_0.4MgAl₁₁O₁₉ phosphor powders. The flow rates of fuel and carrier gas were optimized to prepare the Ce_0.6Tb_0.4MgAl₁₁O₁₉ phosphor powders with fine size, spherical shape and filled morphology. To produce the Ce_0.6Tb_0.4MgAl₁₁O₁₉ phosphor powders with fine size, spherical shape and filled morphology, the diffusion flame with high temperature is required to melt completely the precursors. The optimum flow rates of propane and oxygen used as fuel and carrier gas were each 4 and 10 L/min. The powders directly prepared by flame spray pyrolysis had bimodal size distributions of nano-sized and submicron-sized powders with different compositions. However, the composition of post-treated Ce_0.6Tb_0.4MgAl₁₁O₁₉ phosphor powders was similar in comparison with that of the spray solution. The CTMA phosphor powders prepared by flame spray pyrolysis had higher photoluminescence intensities than those of the phosphor powders prepared by conventional spray pyrolysis.

Original language	English
Pages (from-to)	367-372
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	472
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.04.077
Publication status	Published - 2009 Mar 20
Externally published	Yes

Keywords

Ceramics
Chemical synthesis
Gas-solid reaction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2008.04.077

Cite this

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title = "Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis",

abstract = "Flame spray pyrolysis was introduced to prepare Ce0.6Tb0.4MgAl11O19 phosphor powders. The flow rates of fuel and carrier gas were optimized to prepare the Ce0.6Tb0.4MgAl11O19 phosphor powders with fine size, spherical shape and filled morphology. To produce the Ce0.6Tb0.4MgAl11O19 phosphor powders with fine size, spherical shape and filled morphology, the diffusion flame with high temperature is required to melt completely the precursors. The optimum flow rates of propane and oxygen used as fuel and carrier gas were each 4 and 10 L/min. The powders directly prepared by flame spray pyrolysis had bimodal size distributions of nano-sized and submicron-sized powders with different compositions. However, the composition of post-treated Ce0.6Tb0.4MgAl11O19 phosphor powders was similar in comparison with that of the spray solution. The CTMA phosphor powders prepared by flame spray pyrolysis had higher photoluminescence intensities than those of the phosphor powders prepared by conventional spray pyrolysis.",

keywords = "Ceramics, Chemical synthesis, Gas-solid reaction",

author = "Jung, {Dae Soo} and Cho, {Jung Sang} and Koo, {Hye Young} and Kang, {Yun Chan}",

year = "2009",

month = mar,

day = "20",

doi = "10.1016/j.jallcom.2008.04.077",

language = "English",

volume = "472",

pages = "367--372",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "1-2",

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T1 - Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis

AU - Jung, Dae Soo

AU - Cho, Jung Sang

AU - Koo, Hye Young

AU - Kang, Yun Chan

PY - 2009/3/20

Y1 - 2009/3/20

N2 - Flame spray pyrolysis was introduced to prepare Ce0.6Tb0.4MgAl11O19 phosphor powders. The flow rates of fuel and carrier gas were optimized to prepare the Ce0.6Tb0.4MgAl11O19 phosphor powders with fine size, spherical shape and filled morphology. To produce the Ce0.6Tb0.4MgAl11O19 phosphor powders with fine size, spherical shape and filled morphology, the diffusion flame with high temperature is required to melt completely the precursors. The optimum flow rates of propane and oxygen used as fuel and carrier gas were each 4 and 10 L/min. The powders directly prepared by flame spray pyrolysis had bimodal size distributions of nano-sized and submicron-sized powders with different compositions. However, the composition of post-treated Ce0.6Tb0.4MgAl11O19 phosphor powders was similar in comparison with that of the spray solution. The CTMA phosphor powders prepared by flame spray pyrolysis had higher photoluminescence intensities than those of the phosphor powders prepared by conventional spray pyrolysis.

AB - Flame spray pyrolysis was introduced to prepare Ce0.6Tb0.4MgAl11O19 phosphor powders. The flow rates of fuel and carrier gas were optimized to prepare the Ce0.6Tb0.4MgAl11O19 phosphor powders with fine size, spherical shape and filled morphology. To produce the Ce0.6Tb0.4MgAl11O19 phosphor powders with fine size, spherical shape and filled morphology, the diffusion flame with high temperature is required to melt completely the precursors. The optimum flow rates of propane and oxygen used as fuel and carrier gas were each 4 and 10 L/min. The powders directly prepared by flame spray pyrolysis had bimodal size distributions of nano-sized and submicron-sized powders with different compositions. However, the composition of post-treated Ce0.6Tb0.4MgAl11O19 phosphor powders was similar in comparison with that of the spray solution. The CTMA phosphor powders prepared by flame spray pyrolysis had higher photoluminescence intensities than those of the phosphor powders prepared by conventional spray pyrolysis.

KW - Ceramics

KW - Chemical synthesis

KW - Gas-solid reaction

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