High quantum yield luminescence and magnetic properties of NaBa12(BO3 )7F4 phosphors

High quantum yield luminescence and magnetic properties of NaBa12(BO3 )7F4 phosphors Full article

Journal

PCCP: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN: 1463-9084

Output data

Year: 2026, Volume: 28, Number: 14, Pages: 8802-8810 Pages count : 9 DOI: 10.1039/d5cp03777h

Authors

Korotaev Evgeniy V. ^1,2 , Bekker Tatyana B. ^2,3,4 , Ryadun Alexey A. ^1,2 , Davydov Alexey V. ^2,3 , Baykalova Elena B. ²

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
2	Novosibirsk State University, 630090, Novosibirsk, Russia
3	Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
4	Novosibirsk State University of Architecture, Design and Arts (NSUADA), 630099, Novosibirsk, Russia

Funding (2)

1
2

Novel europium and phosphorus co-doped NaBa12(BO3)7F4 (NBBF) fluoroborates were synthesized for the first time. Structural analysis via X-ray powder diffraction indicates that the doping process initiates a change in the crystal symmetry, with the space group transitioning from P42bc to Pbam. Study of their photoluminescence properties revealed the appearance of red luminescence and a high quantum yield of up to 90–92%, which is higher in the case of the Eu-only-doped samples. Investigation of the magnetic properties uncovered a ferromagnetic contribution to the magnetic susceptibility and an unusually large effective magnetic moment associated with the europium ions. The high values of the effective magnetic moments and the high quantum yield were interpreted as evidence for the presence of nanoscale clusters. The combination of a high quantum yield and ferromagnetic properties makes Eu-doped NBBF interesting from the point of view of LED fabrication and magneto-optical applications.

Korotaev E.V. , Bekker T.B. , Ryadun A.A. , Davydov A.V. , Baykalova E.B.
High quantum yield luminescence and magnetic properties of NaBa12(BO3 )7F4 phosphors
PCCP: PHYSICAL CHEMISTRY CHEMICAL PHYSICS. 2026. V.28. N14. P.8802-8810. DOI: 10.1039/d5cp03777h WOS Scopus OpenAlex

Submitted:	Sep 30, 2025
Accepted:	Mar 6, 2026
Published online:	Mar 23, 2026
Published print:	Apr 15, 2026

≡ Web of science:	WOS:001720437100001
≡ Scopus:	2-s2.0-105033782191
≡ OpenAlex:	W7140080063