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Novel NASICON-type Na3.6Y1.8-(PO4)3:xDy3+ phosphor: Structure and luminescenceстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 декабря 2021 г.
- Авторы: Krutyak Nataliya, Spassky Dmitry, Nagirnyi Vitali, Antropov Andrey V., Deyneko Dina V.
- Журнал: Optical Materials
- Том: 122
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 111738
- DOI: 10.1016/j.optmat.2021.111738
- Аннотация: Single-phase Na3.6Y1.8-x(PO4)3:xDy3+ phosphors were synthesized by high-temperature solid- tate reaction. Powder X-ray diffraction study reveals that a homogeneous solid solution with a NASICON-type structure is formed at 0 ≤ x ≤ 0.4. Luminescence properties of the phosphors were studied using the methods of UV and VUV spectroscopy. Narrow emission bands originating from intraconfigurational transitions in Dy3+ were detected in the region 450–800 nm and optimal concentration of the dopant determined. The concentration quenching of Dy3+ emission is shown to be due to dipole-interaction. In addition, two broad bands were detected in the UV and blue spectral regions, which were tentatively ascribed to the intrinsic emission of self-trapped excitons and defect-related centers, respectively. Optical bandgap energy of Na3.6Y1.8(PO4)3 was estimated to Eg ~ 7.1 eV. Influence of temperature on luminescence characteristics was studied.
- Добавил в систему: Крутяк Наталия Романовна
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