New red phosphor Na3EuB8O15 with an open-window tubular structure.
Acta Crystallogr C Struct Chem
; 77(Pt 5): 235-239, 2021 May 01.
Article
em En
| MEDLINE
| ID: mdl-33949339
ABSTRACT
A new rare-earth polyborate, trisodium europium octaborate, Na3EuB8O15, was prepared using the high-temperature molten-salt method and structurally determined by single-crystal X-ray diffraction analysis. It crystallizes in the triclinic space group P-1 and contains a one-dimensional [B8O15]∞ tube structure that is constructed from BO3 and BO4 polyhedra. The Eu3+ and Na+ cations reside in this structure to ensure cohesion and neutrality. The excitation spectra, emission spectra, decay time and Commission Internationale de l'Éclairage (CIE) chromaticity index of Na3EuB8O15 were studied. Under near-UV light excitation (393â
nm), the polyborate shows an intense red emission, which mainly originates from the highest intensities of the 5D0â7F1 and 5D0â7F2 transitions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Acta Crystallogr C Struct Chem
Ano de publicação:
2021
Tipo de documento:
Article