Emission analysis of Tb3+:MgAl2O4 powder phosphor

I. Omkaram; G. Seeta Rama Raju; S. Buddhudu

doi:10.1016/j.jpcs.2008.03.005

Emission analysis of Tb³⁺:MgAl₂O₄ powder phosphor

I. Omkaram, G. Seeta Rama Raju, S. Buddhudu

Department of Energy and Materials Engineering

Sri Venkateswara University

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

51 Scopus citations

Abstract

This paper reports the emission analysis of green-emitting Tb³⁺-doped MgAl₂O₄ phosphors. Uniformity of the phase of the Tb³⁺-doped MgAl₂O₄ phosphor has been checked by X-ray diffraction (XRD) technique and show common bands existing in the results of Fourier transform infrared (FT-IR). This phosphor exhibits weak blue, orange emissions and a strong emission at λ_exci=350 nm. The blue and green-orange emissions are ascribed to ⁵D₃→⁷F_J and ⁵D₄→⁷F_J (where J=3-6) transitions of Tb³⁺ ions, respectively. These phosphors have shown a strong, more prominent green emission from ⁵D₄→⁷F₅ at 543 nm. The results have indicated that MgAl₂O₄:Tb³⁺ could be a potential candidate as agreen-emitting powder phosphor.

Original language	English
Pages (from-to)	2066-2069
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	69
Issue number	8
DOIs	https://doi.org/10.1016/j.jpcs.2008.03.005
State	Published - Aug 2008

Keywords

A. Optical materials
D. Luminescence

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10.1016/j.jpcs.2008.03.005

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title = "Emission analysis of Tb3+:MgAl2O4 powder phosphor",

abstract = "This paper reports the emission analysis of green-emitting Tb3+-doped MgAl2O4 phosphors. Uniformity of the phase of the Tb3+-doped MgAl2O4 phosphor has been checked by X-ray diffraction (XRD) technique and show common bands existing in the results of Fourier transform infrared (FT-IR). This phosphor exhibits weak blue, orange emissions and a strong emission at λexci=350 nm. The blue and green-orange emissions are ascribed to 5D3→7FJ and 5D4→7FJ (where J=3-6) transitions of Tb3+ ions, respectively. These phosphors have shown a strong, more prominent green emission from 5D4→7F5 at 543 nm. The results have indicated that MgAl2O4:Tb3+ could be a potential candidate as agreen-emitting powder phosphor.",

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

author = "I. Omkaram and {Seeta Rama Raju}, G. and S. Buddhudu",

year = "2008",

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doi = "10.1016/j.jpcs.2008.03.005",

language = "English",

volume = "69",

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journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

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TY - JOUR

T1 - Emission analysis of Tb3+:MgAl2O4 powder phosphor

AU - Omkaram, I.

AU - Seeta Rama Raju, G.

AU - Buddhudu, S.

PY - 2008/8

Y1 - 2008/8

N2 - This paper reports the emission analysis of green-emitting Tb3+-doped MgAl2O4 phosphors. Uniformity of the phase of the Tb3+-doped MgAl2O4 phosphor has been checked by X-ray diffraction (XRD) technique and show common bands existing in the results of Fourier transform infrared (FT-IR). This phosphor exhibits weak blue, orange emissions and a strong emission at λexci=350 nm. The blue and green-orange emissions are ascribed to 5D3→7FJ and 5D4→7FJ (where J=3-6) transitions of Tb3+ ions, respectively. These phosphors have shown a strong, more prominent green emission from 5D4→7F5 at 543 nm. The results have indicated that MgAl2O4:Tb3+ could be a potential candidate as agreen-emitting powder phosphor.

AB - This paper reports the emission analysis of green-emitting Tb3+-doped MgAl2O4 phosphors. Uniformity of the phase of the Tb3+-doped MgAl2O4 phosphor has been checked by X-ray diffraction (XRD) technique and show common bands existing in the results of Fourier transform infrared (FT-IR). This phosphor exhibits weak blue, orange emissions and a strong emission at λexci=350 nm. The blue and green-orange emissions are ascribed to 5D3→7FJ and 5D4→7FJ (where J=3-6) transitions of Tb3+ ions, respectively. These phosphors have shown a strong, more prominent green emission from 5D4→7F5 at 543 nm. The results have indicated that MgAl2O4:Tb3+ could be a potential candidate as agreen-emitting powder phosphor.

KW - A. Optical materials

KW - D. Luminescence

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U2 - 10.1016/j.jpcs.2008.03.005

DO - 10.1016/j.jpcs.2008.03.005

M3 - Article

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SN - 0022-3697

VL - 69

SP - 2066

EP - 2069

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 8

ER -

Emission analysis of Tb³⁺:MgAl₂O₄ powder phosphor

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Keywords

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