Preparation method of highly-transparent Yb<3+> single-doped fluorosilicate microcrystalline glass

Abstract

The invention belongs to the technical fields of special glass production and manufacturing, and particularly relates to a preparation method of highly-transparent Yb<3+> single-doped fluorosilicate microcrystalline glass. The method comprises the following steps: grinding raw material reagents, and performing stirring; performing melting in a high-temperature furnace to prepare a glass liquid, performing quenching on the glass liquid, and performing pressing by using a copper plate to obtain a transparent precursor glass sample; performing annealing treatment on the precursor glass sample; and performing heat treatment to make fluoride nanocrystals precipitated from the glass sample to obtain the microcrystalline glass, wherein the raw material reagents comprise the following chemical components, in percentages by mole: 55 mol% of SiO2, 22.5 mol% of KF, 22.5 mol% of ZnF2 and 0-0.9 mol% of a rare earth ion doped reagent, and the doped ions are formed by doping 0.1-0.9 mol% of YbF3 on the basis of a glass substrate. The preparation method provided by the invention has a simple preparation process, and can realize mass production; and the prepared microcrystalline glass has high transparency and high luminous efficiency, can realize strong blue light emission under 980 nm semiconductor laser pumping, has excellent chemical stability, can be used as a luminescent glass material used for illumination display, can be applied to the field of fiber lasers, and has broad prospects.

Description

technical field [0001] The invention belongs to the technical field of special glass production and manufacturing, in particular to a highly transparent Yb 3+ A method for preparing single-doped fluorosilicate glass-ceramics. Background technique [0002] Transparent glass-ceramic refers to a special glass in which nano-sized crystals are controllably precipitated in a uniform and transparent glass, and can be widely used as a gain material for lighting displays and fiber lasers. In the past researches on upconversion luminescent materials, most of them were based on rare earth ion doped crystal materials. Generally speaking, the preparation of crystal materials is difficult and the price is relatively high, which limits the application of rare earth ion doped up-conversion luminescent crystal materials. Rare-earth ion-doped transparent glass-ceramic not only has the excellent chemical stability, mechanical strength and high laser damage threshold of general oxide glass, b...

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Problems solved by technology

The preparation process of crystal materials is complicated, and its low physical and chemical stability also limits its application requirements in some harsh environments

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