Photoluminescence Properties of α-SiAlON: Eu2+ Prepared by Carbothermal Reduction and Nitridation Method

Hongchuan Zhang; Takashi Horikawa; Hiromasa Hanzawa; Ayanori Hamaguchi; Ken Ichi Machida

doi:10.1149/1.2398906

Photoluminescence Properties of α-SiAlON: Eu2+ Prepared by Carbothermal Reduction and Nitridation Method

Hongchuan Zhang, Takashi Horikawa, Hiromasa Hanzawa, Ayanori Hamaguchi, Ken Ichi Machida

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

38 Citations (Scopus)

Abstract

Carbothermal reduction and nitridation method was used to prepare Ca-α-SiAlON: Eu2+ phosphor (Ca1-x Eux Al2 Si10 N16) from CaC O3, Eu2 O3, Al2 O3, and Si3 N4. The as-prepared samples were heated again at 1600°C in a carbon-free atmosphere (high-purity N2) to decrease the residual carbon content. The resulting Ca-α-SiAlON: Eu2+ phosphors with lowered carbon impurity showed the yellow emission band peaking at 585-605 nm as intensified 2-3 times more by the above heat-treatment. A white light-emitting diode (LED) with a Commission Internationale de l'Eclairage (CIE) chromaticity coordinate (x=0.35, y=0.32) was fabricated by using a blue LED chip (460 nm) together with Ca-α-SiAlON: Eu2+ and YAG: Ce3+ phosphors.

Original language	English
Pages (from-to)	J59-J61
Journal	Journal of the Electrochemical Society
Volume	154
Issue number	2
DOIs	https://doi.org/10.1149/1.2398906
Publication status	Published - 2007
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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10.1149/1.2398906

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title = "Photoluminescence Properties of α-SiAlON: Eu2+ Prepared by Carbothermal Reduction and Nitridation Method",

abstract = "Carbothermal reduction and nitridation method was used to prepare Ca-α-SiAlON: Eu2+ phosphor (Ca1-x Eux Al2 Si10 N16) from CaC O3, Eu2 O3, Al2 O3, and Si3 N4. The as-prepared samples were heated again at 1600°C in a carbon-free atmosphere (high-purity N2) to decrease the residual carbon content. The resulting Ca-α-SiAlON: Eu2+ phosphors with lowered carbon impurity showed the yellow emission band peaking at 585-605 nm as intensified 2-3 times more by the above heat-treatment. A white light-emitting diode (LED) with a Commission Internationale de l'Eclairage (CIE) chromaticity coordinate (x=0.35, y=0.32) was fabricated by using a blue LED chip (460 nm) together with Ca-α-SiAlON: Eu2+ and YAG: Ce3+ phosphors.",

author = "Hongchuan Zhang and Takashi Horikawa and Hiromasa Hanzawa and Ayanori Hamaguchi and Machida, {Ken Ichi}",

year = "2007",

doi = "10.1149/1.2398906",

language = "English",

volume = "154",

pages = "J59--J61",

journal = "Journal of the Electrochemical Society",

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publisher = "Electrochemical Society, Inc.",

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TY - JOUR

T1 - Photoluminescence Properties of α-SiAlON

T2 - Eu2+ Prepared by Carbothermal Reduction and Nitridation Method

AU - Zhang, Hongchuan

AU - Horikawa, Takashi

AU - Hanzawa, Hiromasa

AU - Hamaguchi, Ayanori

AU - Machida, Ken Ichi

PY - 2007

Y1 - 2007

N2 - Carbothermal reduction and nitridation method was used to prepare Ca-α-SiAlON: Eu2+ phosphor (Ca1-x Eux Al2 Si10 N16) from CaC O3, Eu2 O3, Al2 O3, and Si3 N4. The as-prepared samples were heated again at 1600°C in a carbon-free atmosphere (high-purity N2) to decrease the residual carbon content. The resulting Ca-α-SiAlON: Eu2+ phosphors with lowered carbon impurity showed the yellow emission band peaking at 585-605 nm as intensified 2-3 times more by the above heat-treatment. A white light-emitting diode (LED) with a Commission Internationale de l'Eclairage (CIE) chromaticity coordinate (x=0.35, y=0.32) was fabricated by using a blue LED chip (460 nm) together with Ca-α-SiAlON: Eu2+ and YAG: Ce3+ phosphors.

AB - Carbothermal reduction and nitridation method was used to prepare Ca-α-SiAlON: Eu2+ phosphor (Ca1-x Eux Al2 Si10 N16) from CaC O3, Eu2 O3, Al2 O3, and Si3 N4. The as-prepared samples were heated again at 1600°C in a carbon-free atmosphere (high-purity N2) to decrease the residual carbon content. The resulting Ca-α-SiAlON: Eu2+ phosphors with lowered carbon impurity showed the yellow emission band peaking at 585-605 nm as intensified 2-3 times more by the above heat-treatment. A white light-emitting diode (LED) with a Commission Internationale de l'Eclairage (CIE) chromaticity coordinate (x=0.35, y=0.32) was fabricated by using a blue LED chip (460 nm) together with Ca-α-SiAlON: Eu2+ and YAG: Ce3+ phosphors.

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JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

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ER -

Photoluminescence Properties of α-SiAlON: Eu2+ Prepared by Carbothermal Reduction and Nitridation Method

Abstract

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UN SDGs

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