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Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties

Strontium aluminate (SrAl2O4), SrAl2O4: Eu2+ and SrAl2O4: Eu2+/Dy3+ phosphors were prepared by solution combustion method. The XRD patterns of the sample were analysed using Rietveld refinement. The analysis confirmed the multiphase structure consisting of hexagonal (P63 space group) and monoclinic...

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Main Authors: Roslan, N. N. N., Razali, W. A. W., Tamuri, A. R., Azhan, H., Mohamed, Z.
Format: Article
Language:English
Published: S.C. Virtual Company of Phisics S.R.L 2022
Subjects:
QC Physics
Online Access:http://eprints.utm.my/103034/1/AbdRahmanTamuri2022_SynthesisofGreenPhosphorSrAl2O4.pdf
http://eprints.utm.my/103034/
http://dx.doi.org/10.15251/CL.2022.192.83
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spelling my.utm.1030342023-10-12T09:04:46Z http://eprints.utm.my/103034/ Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties Roslan, N. N. N. Razali, W. A. W. Tamuri, A. R. Azhan, H. Mohamed, Z. QC Physics Strontium aluminate (SrAl2O4), SrAl2O4: Eu2+ and SrAl2O4: Eu2+/Dy3+ phosphors were prepared by solution combustion method. The XRD patterns of the sample were analysed using Rietveld refinement. The analysis confirmed the multiphase structure consisting of hexagonal (P63 space group) and monoclinic (P121 space group) phases. The refinement ?2 values in the range of 2.1–2.8. The crystal structure model was generated based on the refined data. The refined unit cell volume show increment after Eu and Dy doping. The estimated crystallite size is approximately 19 nm and slightly increase after calcination. The emission spectra of the Eu2+ doped SrAl2O4 sample shows a broad emission band with a peak around 500 nm, corresponding to 4f65d1–4f7 transition. With additional Dy3+ doping, the emission peak shifted towards 522 nm, which emitted green light as illustrated by the CIE diagram. The synthesized compounds were also characterized by FTIR and UV-vis for their chemical bonding and energy band gap respectively. S.C. Virtual Company of Phisics S.R.L 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/103034/1/AbdRahmanTamuri2022_SynthesisofGreenPhosphorSrAl2O4.pdf Roslan, N. N. N. and Razali, W. A. W. and Tamuri, A. R. and Azhan, H. and Mohamed, Z. (2022) Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties. Chalcogenide Letters, 19 (2). pp. 83-91. ISSN 1584-8663 http://dx.doi.org/10.15251/CL.2022.192.83 DOI : 10.15251/CL.2022.192.83
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QC Physics
spellingShingle QC Physics
Roslan, N. N. N.
Razali, W. A. W.
Tamuri, A. R.
Azhan, H.
Mohamed, Z.
Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties
description Strontium aluminate (SrAl2O4), SrAl2O4: Eu2+ and SrAl2O4: Eu2+/Dy3+ phosphors were prepared by solution combustion method. The XRD patterns of the sample were analysed using Rietveld refinement. The analysis confirmed the multiphase structure consisting of hexagonal (P63 space group) and monoclinic (P121 space group) phases. The refinement ?2 values in the range of 2.1–2.8. The crystal structure model was generated based on the refined data. The refined unit cell volume show increment after Eu and Dy doping. The estimated crystallite size is approximately 19 nm and slightly increase after calcination. The emission spectra of the Eu2+ doped SrAl2O4 sample shows a broad emission band with a peak around 500 nm, corresponding to 4f65d1–4f7 transition. With additional Dy3+ doping, the emission peak shifted towards 522 nm, which emitted green light as illustrated by the CIE diagram. The synthesized compounds were also characterized by FTIR and UV-vis for their chemical bonding and energy band gap respectively.
format Article
author Roslan, N. N. N.
Razali, W. A. W.
Tamuri, A. R.
Azhan, H.
Mohamed, Z.
author_facet Roslan, N. N. N.
Razali, W. A. W.
Tamuri, A. R.
Azhan, H.
Mohamed, Z.
author_sort Roslan, N. N. N.
title Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties
title_short Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties
title_full Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties
title_fullStr Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties
title_full_unstemmed Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties
title_sort synthesis of green phosphor sral2o4: eu2+, dy3+: rietveld refinement and optical properties
publisher S.C. Virtual Company of Phisics S.R.L
publishDate 2022
url http://eprints.utm.my/103034/1/AbdRahmanTamuri2022_SynthesisofGreenPhosphorSrAl2O4.pdf
http://eprints.utm.my/103034/
http://dx.doi.org/10.15251/CL.2022.192.83
_version_ 1781777635056025600
score 13.211869

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