Luminescence properties of rare-earth-doped fluoride borate crystals

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

Single crystals of undoped and Ce3+, Tb3+, and Eu3+/Tb3+/Ce3+ co-doped Ba12(BO3)6[BO3][LiF4] crystals were grown from high-temperature solutions. The Ba12(BO3)6[BO3][LiF4] compound crystallizes in the structural type of barium orthoborate Ba3(BO3)2 with porous Ba12(BO3)66+ cationic framework filled with disordered anionic groups. The PL and PLE spectra of undoped and rare-earth-doped crystals were studied. The photoluminescence temperature dependences in the range of 77–300 K were recorded. The shape and position of lines in the spectra are typical of cerium, terbium, and europium ions. Luminescence lifetime constants were measured in the range of 77–300 К. It was shown that at the excitation wavelength of 300 nm and 370 nm at 300 K, Ba12(BO3)6[BO3][LiF4]:Eu3+, Tb3+, Ce3+ crystals have luminescence close to daylight with CIE chromaticity coordinates and correlated color temperature of (0.335; 0.309), 5352 K and (0.295; 0.362), 7121 K, respectively. Our results indicate that rare-earth-doped Ba12(BO3)6[BO3][LiF4] crystals can be considered a candidate for the conversion of LED emission into white light.

Язык оригиналаанглийский
Номер статьи163343
ЖурналJournal of Alloys and Compounds
Том900
DOI
СостояниеОпубликовано - 15 апр. 2022

Предметные области OECD FOS+WOS

  • 2.05 ТЕХНОЛОГИЯ МАТЕРИАЛОВ
  • 2.03 МЕХАНИКА И МАШИНОСТРОЕНИЕ
  • 2.05.PZ МЕТАЛЛУРГИЯ И МЕТАЛЛУРГИЧЕСКАЯ ИНЖЕНЕРИЯ
  • 1.04 ХИМИЧЕСКИЕ НАУКИ

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