Triple molybdate scheelite-type upconversion phosphor NaCaLa(MoO4)3:Er3+/Yb3+: structural and spectroscopic properties
URI (for links/citations):http://elib.sfu-kras.ru/handle/2311/28052
Lim, C. S.
Aleksandrovsky, A. S.
Molokeev, M. S.
Oreshonkov, A. S.
Ikonnikov, D. A.
Atuchin, V. V.
Институт инженерной физики и радиоэлектроники
Базовая кафедра фотоники и лазерных технологий
Journal Name:Dalton Transactions
Journal Quartile in Scopus:Q1
Journal Quartile in Web of Science:Q1
Bibliographic Citation:Lim, C. S. Triple molybdate scheelite-type upconversion phosphor NaCaLa(MoO4)3:Er3+/Yb3+: structural and spectroscopic properties [Текст] / C. S. Lim, A. S. Aleksandrovsky, M. S. Molokeev, A. S. Oreshonkov, D. A. Ikonnikov, V. V. Atuchin // Dalton Transactions. — 2016. — . — .
Triple molybdate NaCaLa(1-x-y)(MoO4)3:xEr3+,yYb3+ (x = y = 0, x = 0.05 and y = 0.45, x = 0.1 and y = 0.2, x = 0.2 and y = 0) phosphors were successfully synthesized by the microwave sol-gel method for the first time. Well-crystallized particles formed after heattreatment at 900°C for 16 h showed a fine and homogeneous morphology with particle sizes of 2-3 μm. The structures were refined by Rietveld method in space group I41/a. The optical properties were examined comparatively using photoluminescence emission and Raman spectroscopy. Under the excitation at 980 nm, the NaCaLa0.7(MoO4)3:0.1Er3+,0.2Yb3+ and NaCaLa0.5(MoO4)3:0.05Er3+,0.45Yb3+ particles exhibited a strong 525-nm emission band, a weaker 550-nm emission band in the green region, and weak 655-nm, 490-nm and 410-nm emission bands in the red, blue and violet regions. The pump power dependence and Commission Internationale de L'Eclairage chromaticity of the upconversion emission intensity were evaluated in detail.