Preparation of glass-based composites with green upconversion and persistent luminescence using modified direct doping method

被引：8

作者：

Lahti, V. ^{[1
]}

Ojha, N. ^{[1
]}

Vuori, S. ^{[2
,3
]}

Lastusaari, M. ^{[2
,4
]}

Petit, L. ^{[1
]}

机构：

[1] Tampere Univ, Photon Lab, FI-33101 Tampere, Finland

[2] Univ Turku, Dept Chem, FI-20014 Turku, Finland

[3] Univ Turku Grad Sch UTUGS, Doctoral Programme Phys & Chem Sci, FI-20014 Turku, Finland

[4] Turku Univ Ctr Mat & Surfaces MatSurf, Turku, Finland

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2021年 / 274卷

基金：

芬兰科学院;

关键词：

Upconversion; Persistent luminescence; Glass; Glass-ceramic; Composite; OXYFLUORIDE PHOSPHATE-GLASSES; EFFICIENCIES; GROWTH;

D O I：

10.1016/j.matchemphys.2021.125164

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New oxyfluorophosphate glass-based composites which exhibit not only green upconversion under 980 nm pumping but also green persistent luminescence (PeL) after being UV charged were successfully prepared using the direct doping method. The composites are composed of a glass-ceramic with Er3+ doped CaF2 crystals and of the persistent luminescent particles with the SrAl2O4:Eu,Dy composition. In the standard direct doping method, the glass melt is quenched few minutes after adding the PeL particles in the melt held at a temperature lower than the melting temperature. It is demonstrated that the direct doping method should be modified when preparing oxyfluoride glasses with PeL particles to limit not only the decomposition of the PeL particles in the glass but also the fluorine evaporation occurring during the glass preparation. Here, the composites were prepared by quenching the melt right after adding the PeL particles. The modified direct doping method allows the preparation of glass-based composites with strong green upconversion and homogeneous green persistent luminescence.

引用

页数：7

共 29 条

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