Rare earth ion doped SrI2 microcrystalline glass and preparation method thereof
A technology of glass ceramics and rare earth ions, which is applied in the field of SrI2 glass ceramics doped with rare earth ions and its preparation, can solve the problems of poor chemical stability and mechanical strength, easy moisture absorption of crystals, low phonon energy, etc., and achieve mechanical Good performance, high transmittance of blue-violet light, low phonon energy
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Embodiment 1
[0020] Er 3+ , Yb 3+ doped SrI 2 The molar percentage composition of glass-ceramic is: SiO 2 80mol%, SrI 2 15mol%, ErI 3 0.5mol%, YbI 3 4.5mol%, the process for preparing glass-ceramics of the above composition is as follows:
[0021] (1) Weigh strontium acetate, ytterbium acetate, and erbium acetate, and the parts are respectively composed of SrI in the above mole percentage 2 , YbI 3 , ErI 3 Weigh the molar percentage content, dissolve the above-mentioned acetate in deionized water to form an acetate solution, add triiodoacetic acid to the acetate solution to obtain a transparent mixed solution, wherein triiodoacetic acid and acetate solution The molar ratio of the sum of metal ions is 3:1;
[0022] (2) SiO in the same molar percentage composition as step (1) 2 The molar percentage content takes ethyl orthosilicate and dissolves it in ethanol to obtain ethyl orthosilicate solution, then mixes the mixed solution prepared in step (1) with ethyl orthosilicate solution...
Embodiment 2
[0027] Er 3+ 、Tm 3+ , Yb 3+ doped SrI 2 The molar percentage composition of glass-ceramic is: SiO 2 83mol%, SrI2 14mol%, ErI 3 0.1mol%, TmI 3 0.1mol%, YbI 3 2.8mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ 、Tm 3+ , Yb 3+ Doped SrI 2 Glass-ceramic. The glass-ceramic was measured with a TRIAX550 fluorescence spectrometer, under the excitation condition of a 970nm laser, strong blue, green and red upconversion luminescence were observed.
Embodiment 3
[0029] Er 3+ doped SrI 2 The molar percentage composition of glass-ceramic is: SiO 2 89.5mol%, SrI 2 10mol%, ErI 3 0.5mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ Doped SrI 2 Glass-ceramic. The glass-ceramic is subjected to a spectral test, and strong ultraviolet and purple up-conversion luminescence are observed when excited by light sources with wavelengths of 543nm and 548.8nm.
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