Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Novel CaBi2B4O10:Eu3+ red phosphorSynthesis, crystal structure, luminescence and thermal expansion. / Shablinskii, A. P.; Povolotskiy, A. V.; Yuriev, A. A.; Bubnova, R. S.; Kolesnikov, I. E.; Filatov, S. K.
в: Solid State Sciences, Том 106, № 106280, 106280, 08.2020, стр. 106280.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Novel CaBi2B4O10:Eu3+ red phosphorSynthesis, crystal structure, luminescence and thermal expansion
AU - Shablinskii, A. P.
AU - Povolotskiy, A. V.
AU - Yuriev, A. A.
AU - Bubnova, R. S.
AU - Kolesnikov, I. E.
AU - Filatov, S. K.
PY - 2020/8
Y1 - 2020/8
N2 - The europium doped calcium bismuth borates, CaBi2B4O10:xEu3+ (x = 0–0.3), were prepared using high-temperature solid state synthesis. The crystal structure of the CaBi2B4O10 was solved and refined from single crystal X-ray diffraction data to R1 = 0.029. The CaBi2B4O10 crystallizes in triclinic space group P1‾, a = 6.6665 (1), b = 6.8277 (1), c = 9.5478 (1) Å, α = 94.2420 (8)°, β = 108.5210 (8)°, γ = 101.2840 (8)°, V = 399.76 (1), Z = 2. This compound is isotypical to SrBi2B4O10. Crystal structure contains [B4O9]6– isolated tetraborate groups (4 B:3Δ□: ˂2Δ□˃Δ), Bi–O chains and interstitial Sr atoms. Tetraborate group consists of the triborate ring [B3O7]5– and branched BO3 triangle. Thermal expansion of CaBi2B4O10 was studied by powder HTXRD. The thermal expansion is highly anisotropic (α11 = 14.9 (7), α22 = 2.8 (1), α33 = 7.2 (4), αV = 25 (1) × 10−6 °C−1 at 25 °C). Maximal thermal expansion occurs between the planes of triborate ring and branched BO3 triangle. These solid solutions show an efficient red emission (λmax = 611 nm) when excited by UV-light (λex = 392 nm). The optimal europium doping concentration in CaBi2B4O10 host was found to be 10 at.% due to the area of miscibility of CaBi2-xEuxB4O10 (x = 0–0.225) solid solutions.
AB - The europium doped calcium bismuth borates, CaBi2B4O10:xEu3+ (x = 0–0.3), were prepared using high-temperature solid state synthesis. The crystal structure of the CaBi2B4O10 was solved and refined from single crystal X-ray diffraction data to R1 = 0.029. The CaBi2B4O10 crystallizes in triclinic space group P1‾, a = 6.6665 (1), b = 6.8277 (1), c = 9.5478 (1) Å, α = 94.2420 (8)°, β = 108.5210 (8)°, γ = 101.2840 (8)°, V = 399.76 (1), Z = 2. This compound is isotypical to SrBi2B4O10. Crystal structure contains [B4O9]6– isolated tetraborate groups (4 B:3Δ□: ˂2Δ□˃Δ), Bi–O chains and interstitial Sr atoms. Tetraborate group consists of the triborate ring [B3O7]5– and branched BO3 triangle. Thermal expansion of CaBi2B4O10 was studied by powder HTXRD. The thermal expansion is highly anisotropic (α11 = 14.9 (7), α22 = 2.8 (1), α33 = 7.2 (4), αV = 25 (1) × 10−6 °C−1 at 25 °C). Maximal thermal expansion occurs between the planes of triborate ring and branched BO3 triangle. These solid solutions show an efficient red emission (λmax = 611 nm) when excited by UV-light (λex = 392 nm). The optimal europium doping concentration in CaBi2B4O10 host was found to be 10 at.% due to the area of miscibility of CaBi2-xEuxB4O10 (x = 0–0.225) solid solutions.
KW - Luminescence
KW - Optical borate materials
KW - Oxoborate
KW - Red phosphor
KW - Thermal expansion
KW - Vibrational spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85085234465&partnerID=8YFLogxK
U2 - 10.1016/j.solidstatesciences.2020.106280
DO - 10.1016/j.solidstatesciences.2020.106280
M3 - Article
AN - SCOPUS:85085234465
VL - 106
SP - 106280
JO - Solid State Sciences
JF - Solid State Sciences
SN - 1293-2558
IS - 106280
M1 - 106280
ER -
ID: 53796567