Synthesis, crystal structure and photoluminescence of Eu3+ or Tb3+ doped solid solutions (Y1-xREx)4S3(Si2O7)

Maria S. Tarasenko, Alexey S. Berezin, Alexander S. Kiryakov, Dmitry A. Piryazev, Irina Yu Filatova, Nikolay G. Naumov

Результат исследования: Научные публикации в периодических изданияхстатья

1 Цитирования (Scopus)

Аннотация

Y4S3(Si2O7) and its solid solutions (Y1-xREx)4S3Si2O7 (RE = Eu x = 0.010–0.085, RE=Tb x = 0.010–0.500) were quantitatively prepared by reaction of starting compounds in molten CsCl. Single crystal X-Ray analysis revealed the difference in preference Eu3+ occupancy for two independent RE-sites coming from volume difference of these sites. This effect is negligible for the Tb-containing solid solution due to smaller difference in radii Tb3+ and Y3+ ions. Tb3+-containing samples are luminescent with typical emission of Tb3+, while Eu3+-containing samples are not luminescent. The 1%Tb3+-containing sample emits in blue or in green color depending on the excitation wavelength. Measured melting points are 1545 ± 15 °С for all investigated samples (Y1-xREx)4S3Si2O7.

Язык оригиналаанглийский
Страницы (с-по)36-41
Число страниц6
ЖурналJournal of Solid State Chemistry
Том265
DOI
СостояниеОпубликовано - 1 сен 2018

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