Luminescent properties of a novel green-emitting gallium borate phosphor under vacuum ultraviolet excitation

Kyoungun Kim; Young Min Moon; Sungho Choi; Ha Kyun Jung; Sahn Nahm

doi:10.1016/j.matlet.2008.04.085

Luminescent properties of a novel green-emitting gallium borate phosphor under vacuum ultraviolet excitation

Kyoungun Kim, Young Min Moon, Sungho Choi, Ha Kyun Jung, Sahn Nahm

Department of Materials Science and Engineering

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

35 Citations (Scopus)

Abstract

Vacuum ultraviolet (VUV) excitation and emission properties of a new Tb³⁺-activated green-emitting phosphor with huntite-type gallium borate, LnGa₃(BO₃)₄:Tb³⁺ (Ln = Y, Gd), are investigated. Overall absorption bands are in the range of 120-250 nm and can be tentatively interpreted in terms of the charge transfer transition from host to rare earth ions and the Tb³⁺ activator. Additionally, an appropriate atomic ratio of Y³⁺/Gd³⁺ in the host compound enhances both the excitation and emission efficiency under VUV excitation. Enhanced absorption efficiency for the VUV light makes these novel phosphors the prominent luminescent materials with plasma-discharge conditions, by converting the VUV radiation to the visible light.

Original language	English
Pages (from-to)	3925-3927
Number of pages	3
Journal	Materials Letters
Volume	62
Issue number	24
DOIs	https://doi.org/10.1016/j.matlet.2008.04.085
Publication status	Published - 2008 Sep 15

Keywords

Borates
Phosphors
VUV

ASJC Scopus subject areas

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

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title = "Luminescent properties of a novel green-emitting gallium borate phosphor under vacuum ultraviolet excitation",

abstract = "Vacuum ultraviolet (VUV) excitation and emission properties of a new Tb3+-activated green-emitting phosphor with huntite-type gallium borate, LnGa3(BO3)4:Tb3+ (Ln = Y, Gd), are investigated. Overall absorption bands are in the range of 120-250 nm and can be tentatively interpreted in terms of the charge transfer transition from host to rare earth ions and the Tb3+ activator. Additionally, an appropriate atomic ratio of Y3+/Gd3+ in the host compound enhances both the excitation and emission efficiency under VUV excitation. Enhanced absorption efficiency for the VUV light makes these novel phosphors the prominent luminescent materials with plasma-discharge conditions, by converting the VUV radiation to the visible light.",

keywords = "Borates, Phosphors, VUV",

author = "Kyoungun Kim and Moon, {Young Min} and Sungho Choi and Jung, {Ha Kyun} and Sahn Nahm",

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T1 - Luminescent properties of a novel green-emitting gallium borate phosphor under vacuum ultraviolet excitation

AU - Kim, Kyoungun

AU - Moon, Young Min

AU - Choi, Sungho

AU - Jung, Ha Kyun

AU - Nahm, Sahn

PY - 2008/9/15

Y1 - 2008/9/15

N2 - Vacuum ultraviolet (VUV) excitation and emission properties of a new Tb3+-activated green-emitting phosphor with huntite-type gallium borate, LnGa3(BO3)4:Tb3+ (Ln = Y, Gd), are investigated. Overall absorption bands are in the range of 120-250 nm and can be tentatively interpreted in terms of the charge transfer transition from host to rare earth ions and the Tb3+ activator. Additionally, an appropriate atomic ratio of Y3+/Gd3+ in the host compound enhances both the excitation and emission efficiency under VUV excitation. Enhanced absorption efficiency for the VUV light makes these novel phosphors the prominent luminescent materials with plasma-discharge conditions, by converting the VUV radiation to the visible light.

AB - Vacuum ultraviolet (VUV) excitation and emission properties of a new Tb3+-activated green-emitting phosphor with huntite-type gallium borate, LnGa3(BO3)4:Tb3+ (Ln = Y, Gd), are investigated. Overall absorption bands are in the range of 120-250 nm and can be tentatively interpreted in terms of the charge transfer transition from host to rare earth ions and the Tb3+ activator. Additionally, an appropriate atomic ratio of Y3+/Gd3+ in the host compound enhances both the excitation and emission efficiency under VUV excitation. Enhanced absorption efficiency for the VUV light makes these novel phosphors the prominent luminescent materials with plasma-discharge conditions, by converting the VUV radiation to the visible light.

KW - Borates

KW - Phosphors

KW - VUV

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