Cation sites occupation and luminescence of novel red-emitting phosphors Ba6(Lu1–xEux)5B9O27 (x = 0.02

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Cation sites occupation and luminescence of novel red-emitting phosphors Ba₆(Lu_1–xEu_x)₅B₉O₂₇ (x = 0.02–0.2). / Bubnova, R. S.; Povolotskiy, A. V.; Biryukov, Y. P.; Kolesnikov, I. E.; Volkov, S. N.; Filatov, S. K.

в: Ceramics International, Том 48, № 11, 01.06.2022, стр. 15966-15974.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{24317c3ad9a54c5080c16ca2a4201825,

title = "Cation sites occupation and luminescence of novel red-emitting phosphors Ba6(Lu1–xEux)5B9O27 (x = 0.02–0.2)",

abstract = "The novel phosphors Ba6(Lu1–xEux)5B9O27 (x = 0.02, 0.04, 0.06, 0.08, 0.1, 0.14, 0.2) were obtained by cooling from a melt. Single-crystal X-ray diffraction experiments were provided for all the samples. No structural transitions caused by the Eu3+ → Lu3+ isomorphic substitution were revealed in this series of solid solutions. The data showed that an expected increase of cell parameters is caused by an increase in the Eu3+ content. First, the Eu3+ ions occupy large [Lu2O6] and [Lu3O6] polyhedra that are the most suitable ones for them, then (at x = 0.14) they start to occupy the smallest [Lu1O6] polyhedra. Luminescent properties of the Ba6(Lu1–xEux)5B9O27 (x = 0.02–0.2) phosphors were investigated. The highest emission intensity with quantum yield of 28% was demonstrated by Ba6(Lu0.92Eu0.08)5B9O27. The concentration quenching effect was revealed for the 0.1 ≤ x ≤ 0.2 samples that could be caused by a beginning of the substitution of the smallest [Lu1O6] polyhedra. It was shown that the successive substitution occurs at several cation positions of different sizes affects the quenching of luminescence.",

keywords = "Barium-lutetium borate, Cation sites occupation, Crystal structure, Europium-activated phosphor, Luminescence, Phosphors",

author = "Bubnova, {R. S.} and Povolotskiy, {A. V.} and Biryukov, {Y. P.} and Kolesnikov, {I. E.} and Volkov, {S. N.} and Filatov, {S. K.}",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = jun,

day = "1",

doi = "10.1016/j.ceramint.2022.02.139",

language = "English",

volume = "48",

pages = "15966--15974",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier",

number = "11",

}

RIS

TY - JOUR

T1 - Cation sites occupation and luminescence of novel red-emitting phosphors Ba6(Lu1–xEux)5B9O27 (x = 0.02–0.2)

AU - Bubnova, R. S.

AU - Povolotskiy, A. V.

AU - Biryukov, Y. P.

AU - Kolesnikov, I. E.

AU - Volkov, S. N.

AU - Filatov, S. K.

PY - 2022/6/1

Y1 - 2022/6/1

N2 - The novel phosphors Ba6(Lu1–xEux)5B9O27 (x = 0.02, 0.04, 0.06, 0.08, 0.1, 0.14, 0.2) were obtained by cooling from a melt. Single-crystal X-ray diffraction experiments were provided for all the samples. No structural transitions caused by the Eu3+ → Lu3+ isomorphic substitution were revealed in this series of solid solutions. The data showed that an expected increase of cell parameters is caused by an increase in the Eu3+ content. First, the Eu3+ ions occupy large [Lu2O6] and [Lu3O6] polyhedra that are the most suitable ones for them, then (at x = 0.14) they start to occupy the smallest [Lu1O6] polyhedra. Luminescent properties of the Ba6(Lu1–xEux)5B9O27 (x = 0.02–0.2) phosphors were investigated. The highest emission intensity with quantum yield of 28% was demonstrated by Ba6(Lu0.92Eu0.08)5B9O27. The concentration quenching effect was revealed for the 0.1 ≤ x ≤ 0.2 samples that could be caused by a beginning of the substitution of the smallest [Lu1O6] polyhedra. It was shown that the successive substitution occurs at several cation positions of different sizes affects the quenching of luminescence.

AB - The novel phosphors Ba6(Lu1–xEux)5B9O27 (x = 0.02, 0.04, 0.06, 0.08, 0.1, 0.14, 0.2) were obtained by cooling from a melt. Single-crystal X-ray diffraction experiments were provided for all the samples. No structural transitions caused by the Eu3+ → Lu3+ isomorphic substitution were revealed in this series of solid solutions. The data showed that an expected increase of cell parameters is caused by an increase in the Eu3+ content. First, the Eu3+ ions occupy large [Lu2O6] and [Lu3O6] polyhedra that are the most suitable ones for them, then (at x = 0.14) they start to occupy the smallest [Lu1O6] polyhedra. Luminescent properties of the Ba6(Lu1–xEux)5B9O27 (x = 0.02–0.2) phosphors were investigated. The highest emission intensity with quantum yield of 28% was demonstrated by Ba6(Lu0.92Eu0.08)5B9O27. The concentration quenching effect was revealed for the 0.1 ≤ x ≤ 0.2 samples that could be caused by a beginning of the substitution of the smallest [Lu1O6] polyhedra. It was shown that the successive substitution occurs at several cation positions of different sizes affects the quenching of luminescence.

KW - Barium-lutetium borate

KW - Cation sites occupation

KW - Crystal structure

KW - Europium-activated phosphor

KW - Luminescence

KW - Phosphors

UR - http://www.scopus.com/inward/record.url?scp=85125668888&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/4f78ac56-a1f3-3602-b3cd-ed70b2bf278f/

U2 - 10.1016/j.ceramint.2022.02.139

DO - 10.1016/j.ceramint.2022.02.139

M3 - Article

AN - SCOPUS:85125668888

VL - 48

SP - 15966

EP - 15974

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 11

ER -

ID: 93512391

Cation sites occupation and luminescence of novel red-emitting phosphors Ba6(Lu1–xEux)5B9O27 (x = 0.02–0.2)

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Cation sites occupation and luminescence of novel red-emitting phosphors Ba₆(Lu_1–xEu_x)₅B₉O₂₇ (x = 0.02–0.2)