A Photoluminescence Study of Eu3+, Tb3+, Ce3+ Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba4−xSr3+x(BO3)4−yF2+3y (BSBF)

The present study is aimed at unveiling the luminescence potential of Ba4−xSr3+x(BO3)4−yF2+3y (BSBF) crystals...

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Main Authors:	Tatyana B. Bekker, Alexey A. Ryadun, Sergey V. Rashchenko, Alexey V. Davydov, Elena B. Baykalova, Vladimir P. Solntsev
Format:	Article
Language:	English
Published:	MDPI AG 2023-07-01
Series:	Materials
Subjects:	borates dopants rare-earth elements photoluminescence
Online Access:	https://www.mdpi.com/1996-1944/16/15/5344

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author	Tatyana B. Bekker Alexey A. Ryadun Sergey V. Rashchenko Alexey V. Davydov Elena B. Baykalova Vladimir P. Solntsev
author_facet	Tatyana B. Bekker Alexey A. Ryadun Sergey V. Rashchenko Alexey V. Davydov Elena B. Baykalova Vladimir P. Solntsev
author_sort	Tatyana B. Bekker
collection	DOAJ
description	The present study is aimed at unveiling the luminescence potential of Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF) crystals doped with Eu<sup>3+</sup>, Tb<sup>3+</sup>, and Ce<sup>3+</sup>. Owing to the incongruent melting character of the phase, the NaF compound was used as a solvent for BSBF crystal growth. The structure of BSBF: Eu<sup>3+</sup> with Eu<sub>2</sub>O<sub>3</sub> concentration of about 0.7(3) wt% was solved in the non-centrosymmetric point group <i>P</i>6<sub>3</sub><i>mc</i>. The presence of Eu<sub>2</sub>O<sub>3</sub> in BSBF: Eu<sup>3+</sup> leads to a shift of the absorption edge from 225 nm to 320 nm. The photoluminescence properties of the BSBF: Ce<sup>3+</sup>, BSBF: Tb<sup>3+</sup>, BSBF: Eu<sup>3+</sup>, and BSBF: Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> crystals have been studied. The unusual feature of europium emission in BSBF is the intensively manifested <sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>0</sub> transition at about 574 nm, which is the strongest for BSBF: Eu<sup>3+</sup> at 370 nm excitation and for BSBF: Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> at 300 nm and 370 nm excitations. No evidence of Tb<sup>3+</sup>→Eu<sup>3+</sup> energy transfer was found for BSBF: Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup>. The PL spectra of BSBF: Eu<sup>3+</sup> at 77 and 300 K are similar with CIE chromaticity coordinates of (0.617; 0.378) at 300 nm excitation and (0.634; 0.359) at 395 nm excitation and low correlated color temperature which implies application prospects in the field of lightning. Due to the high intensity of <sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>0</sub> Eu<sup>3+</sup> transition at 370 nm excitation, the BSBF: Eu<sup>3+</sup> emission is yellow-shifted.
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id	doaj.art-d2f58a9f316746e3b4abfc6d2a94951b
institution	Directory Open Access Journal
issn	1996-1944
language	English
last_indexed	2024-03-11T00:23:51Z
publishDate	2023-07-01
publisher	MDPI AG
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spelling	doaj.art-d2f58a9f316746e3b4abfc6d2a94951b2023-11-18T23:12:06ZengMDPI AGMaterials1996-19442023-07-011615534410.3390/ma16155344A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF)Tatyana B. Bekker0Alexey A. Ryadun1Sergey V. Rashchenko2Alexey V. Davydov3Elena B. Baykalova4Vladimir P. Solntsev5Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaSobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaSobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaDepartment of Geology and Geophysics, Novosibirsk State University, 630090 Novosibirsk, RussiaSobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaThe present study is aimed at unveiling the luminescence potential of Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF) crystals doped with Eu<sup>3+</sup>, Tb<sup>3+</sup>, and Ce<sup>3+</sup>. Owing to the incongruent melting character of the phase, the NaF compound was used as a solvent for BSBF crystal growth. The structure of BSBF: Eu<sup>3+</sup> with Eu<sub>2</sub>O<sub>3</sub> concentration of about 0.7(3) wt% was solved in the non-centrosymmetric point group <i>P</i>6<sub>3</sub><i>mc</i>. The presence of Eu<sub>2</sub>O<sub>3</sub> in BSBF: Eu<sup>3+</sup> leads to a shift of the absorption edge from 225 nm to 320 nm. The photoluminescence properties of the BSBF: Ce<sup>3+</sup>, BSBF: Tb<sup>3+</sup>, BSBF: Eu<sup>3+</sup>, and BSBF: Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> crystals have been studied. The unusual feature of europium emission in BSBF is the intensively manifested <sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>0</sub> transition at about 574 nm, which is the strongest for BSBF: Eu<sup>3+</sup> at 370 nm excitation and for BSBF: Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> at 300 nm and 370 nm excitations. No evidence of Tb<sup>3+</sup>→Eu<sup>3+</sup> energy transfer was found for BSBF: Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup>. The PL spectra of BSBF: Eu<sup>3+</sup> at 77 and 300 K are similar with CIE chromaticity coordinates of (0.617; 0.378) at 300 nm excitation and (0.634; 0.359) at 395 nm excitation and low correlated color temperature which implies application prospects in the field of lightning. Due to the high intensity of <sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>0</sub> Eu<sup>3+</sup> transition at 370 nm excitation, the BSBF: Eu<sup>3+</sup> emission is yellow-shifted.https://www.mdpi.com/1996-1944/16/15/5344boratesdopantsrare-earth elementsphotoluminescence
spellingShingle	Tatyana B. Bekker Alexey A. Ryadun Sergey V. Rashchenko Alexey V. Davydov Elena B. Baykalova Vladimir P. Solntsev A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF) Materials borates dopants rare-earth elements photoluminescence
title	A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF)
title_full	A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF)
title_fullStr	A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF)
title_full_unstemmed	A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF)
title_short	A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF)
title_sort	photoluminescence study of eu sup 3 sup tb sup 3 sup ce sup 3 sup emission in doped crystals of strontium barium fluoride borate solid solution ba sub 4 i x i sub sr sub 3 i x i sub bo sub 3 sub sub 4 i y i sub f sub 2 3 i y i sub bsbf
topic	borates dopants rare-earth elements photoluminescence
url	https://www.mdpi.com/1996-1944/16/15/5344
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A Photoluminescence Study of Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup> Emission in Doped Crystals of Strontium-Barium Fluoride Borate Solid Solution Ba<sub>4−<i>x</i></sub>Sr<sub>3+<i>x</i></sub>(BO<sub>3</sub>)<sub>4−<i>y</i></sub>F<sub>2+3<i>y</i></sub> (BSBF)

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