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

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

Bibliographical 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.

Keywords

A. Electronic materials
A. Optical materials
D. Luminescence

ASJC Scopus subject areas

General Materials Science
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

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