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Structural and spectroscopic properties of new noncentrosymmetric self-activated borate Rb3EuB6O12 with B5O10 unitsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 30 октября 2018 г.
- Авторы: Atuchin V.V., Subanakov A.K., Aleksandrovsky A.S., Bazarov B.G., Bazarova J.G., Gavrilova T.A., Krylov A.S., Molokeev M.S., Oreshonkov A.S., Stefanovich S.Yu
- Журнал: Materials and Design
- Том: 140
- Год издания: 2018
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 488
- Последняя страница: 494
- DOI: 10.1016/j.matdes.2017.12.004
- Аннотация: New noncentrosymmetric double borate Rb3EuB6O12 was synthesized by solid state reaction method, and their crystallographic parameters were obtained by Rietveld analysis. This borate crystallizes in the trigonal space group R32 with cell parameters of a = 13.4604(2) Å, c = 30.7981(5) Å, Z = 15. Their structure features a three-dimensional framework composed of [B5O10]5- groups that are bridged by Eu-O polyhedra. The existence of B5O10 group in the structure was confirmed by vibrational spectroscopy. Rb3EuB6O12 melts incongruently at 1101 K. The second harmonic generation effect of Rb3EuB6O12 is 16 times higher than that of α-quartz standard. In the luminescence spectrum, the domination of a single prominent narrow line from hypersensitive 5D0 - 7F2 manifold of Eu3+ ions is observed, while 5D0 - 7F1 manifold and ultranarrow 5D0 - 7F0 line are of comparable peak intensity. These features are explained by specific local symmetry of Eu ion within the crystal structure of Rb3EuB6O12.
- Добавил в систему: Стефанович Сергей Юрьевич