Photoluminescence investigation of rare-earth activated GdCa3(GaO)3(BO3)4 phosphors under UV excitation

Hyun Ai Kyung; Sungho Choi; Tae Yeon Seong; Ha Kyun Jung

doi:10.1016/j.materresbull.2008.09.015

Photoluminescence investigation of rare-earth activated GdCa₃(GaO)₃(BO₃)₄ phosphors under UV excitation

Hyun Ai Kyung, Sungho Choi, Tae Yeon Seong, Ha Kyun Jung

Department of Materials Science and Engineering

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

2 Citations (Scopus)

Abstract

A borate compound was adopted as a new host material of Eu³⁺ and Tb³⁺ activators to fabricate efficient luminescence materials. The phosphor compositions, Gd_1-xEu_xCa₃(GaO)₃(BO₃)₄ and Gd_1-xTb_xCa₃(GaO)₃(BO₃)₄, were synthesized by conventional solid-state reactions. The crystalline phases of the resulting powders were identified using an X-ray diffraction system. Their photoluminescence properties were investigated under long-wavelength UV excitation. The Eu³⁺-doped and Tb³⁺-doped GdCa₃(GaO)₃(BO₃)₄ phosphors efficiently emitted red and green light, respectively. The temperature dependency of emission intensity was measured in a range from room temperature to 150 °C. The emission intensities of the red and green phosphors at 150 °C are 87% and 91% of those at room temperature, respectively. In addition, the decay times of both the red and green phosphors are shorter than 3 ms.

Original language	English
Pages (from-to)	789-792
Number of pages	4
Journal	Materials Research Bulletin
Volume	44
Issue number	4
DOIs	https://doi.org/10.1016/j.materresbull.2008.09.015
Publication status	Published - 2009 Apr 2

Keywords

A. Electronic materials
A. Optical materials
D. Luminescence

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.materresbull.2008.09.015

Cite this

@article{ee91fd11152d49b2a0eb0bea35d9f499,

title = "Photoluminescence investigation of rare-earth activated GdCa3(GaO)3(BO3)4 phosphors under UV excitation",

abstract = "A borate compound was adopted as a new host material of Eu3+ and Tb3+ activators to fabricate efficient luminescence materials. The phosphor compositions, Gd1-xEuxCa3(GaO)3(BO 3)4 and Gd1-xTbxCa3(GaO)3(BO 3)4, were synthesized by conventional solid-state reactions. The crystalline phases of the resulting powders were identified using an X-ray diffraction system. Their photoluminescence properties were investigated under long-wavelength UV excitation. The Eu3+-doped and Tb3+-doped GdCa3(GaO)3(BO3)4 phosphors efficiently emitted red and green light, respectively. The temperature dependency of emission intensity was measured in a range from room temperature to 150 °C. The emission intensities of the red and green phosphors at 150 °C are 87% and 91% of those at room temperature, respectively. In addition, the decay times of both the red and green phosphors are shorter than 3 ms.",

keywords = "A. Electronic materials, A. Optical materials, D. Luminescence",

author = "Kyung, {Hyun Ai} and Sungho Choi and Seong, {Tae Yeon} and Jung, {Ha Kyun}",

note = "Funding Information: This research was supported by a grant from Information Display R&D Center, one of the 21st Century Frontier R&D Programs funded by the Ministry of Knowledge Economy of Korean government.",

year = "2009",

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doi = "10.1016/j.materresbull.2008.09.015",

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T1 - Photoluminescence investigation of rare-earth activated GdCa3(GaO)3(BO3)4 phosphors under UV excitation

AU - Kyung, Hyun Ai

AU - Choi, Sungho

AU - Seong, Tae Yeon

AU - Jung, Ha Kyun

N1 - Funding Information: This research was supported by a grant from Information Display R&D Center, one of the 21st Century Frontier R&D Programs funded by the Ministry of Knowledge Economy of Korean government.

PY - 2009/4/2

Y1 - 2009/4/2

N2 - A borate compound was adopted as a new host material of Eu3+ and Tb3+ activators to fabricate efficient luminescence materials. The phosphor compositions, Gd1-xEuxCa3(GaO)3(BO 3)4 and Gd1-xTbxCa3(GaO)3(BO 3)4, were synthesized by conventional solid-state reactions. The crystalline phases of the resulting powders were identified using an X-ray diffraction system. Their photoluminescence properties were investigated under long-wavelength UV excitation. The Eu3+-doped and Tb3+-doped GdCa3(GaO)3(BO3)4 phosphors efficiently emitted red and green light, respectively. The temperature dependency of emission intensity was measured in a range from room temperature to 150 °C. The emission intensities of the red and green phosphors at 150 °C are 87% and 91% of those at room temperature, respectively. In addition, the decay times of both the red and green phosphors are shorter than 3 ms.

AB - A borate compound was adopted as a new host material of Eu3+ and Tb3+ activators to fabricate efficient luminescence materials. The phosphor compositions, Gd1-xEuxCa3(GaO)3(BO 3)4 and Gd1-xTbxCa3(GaO)3(BO 3)4, were synthesized by conventional solid-state reactions. The crystalline phases of the resulting powders were identified using an X-ray diffraction system. Their photoluminescence properties were investigated under long-wavelength UV excitation. The Eu3+-doped and Tb3+-doped GdCa3(GaO)3(BO3)4 phosphors efficiently emitted red and green light, respectively. The temperature dependency of emission intensity was measured in a range from room temperature to 150 °C. The emission intensities of the red and green phosphors at 150 °C are 87% and 91% of those at room temperature, respectively. In addition, the decay times of both the red and green phosphors are shorter than 3 ms.

KW - A. Electronic materials

KW - A. Optical materials

KW - D. Luminescence

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DO - 10.1016/j.materresbull.2008.09.015

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