Rare earth ion doped K3LuCl6 glass ceramic and preparation method thereof

Abstract

The invention discloses rare earth ion doped K3LuCl6 glass ceramic which comprises the following elements by mole percent: 87-94mol% of SiO2, 5.6-10mol% of K3LuCl6 and 0.4-3mol% of LnCl3, wherein LnCl3 is at least one of YbCl3, ErCl3, TmCl3 and HoCl3. The rare earth ion doped K3LuCl6 glass ceramic has the advantages as follows: the prepared rare earth ion doped K3LuCl6 glass ceramic is transparent, deliquescence-proof, good in mechanical property and relatively high in blue-violet light transmittance, has the properties of low phonon energy, high up-conversion efficiency, and the like, and enables the efficiency of an up-conversion laser to be improved greatly, in addition, a preparation method for the glass ceramic is simple and the production cost is relatively low.

Description

technical field [0001] The present invention relates to a rare earth ion doped glass ceramics, in particular to a rare earth ion doped K glass used as an up-conversion luminescent material 3 LuCl 6 Glass-ceramic and its preparation method. Background technique [0002] The up-conversion luminescence of rare earth ions refers to the phenomenon that when a sample doped with rare earth ions is irradiated with excitation light with a longer wavelength, light with a wavelength shorter than that of the excitation light is emitted. Utilizing the up-conversion properties of rare earth ions, an inexpensive fiber laser that can work at room temperature and continuously output violet-blue-green light can be obtained. Violet-blue-green up-conversion lasers can be used in various fields such as color displays, data storage, information technology, laser printing, and medical treatment. To improve the efficiency of upconversion luminescence, it is necessary to reduce the phonon energy ...

AI Technical Summary

Problems solved by technology

K 3 LuCl 6 Crystals have lower phonon energy than fluoride, and are more suitable as rare earth-doped upconversion luminescent hosts, rare earth ion-doped K 3 LuCl 6 crystals have higher upconversion efficiency than fluoride crystals doped with rare earth ions, but K 3 LuCl 6 Crystals are easy to absorb moisture, require special handling and storage, are difficult to prepare, and have poor chemical stability and mechanical strength, which affect the practical application of up-conversion luminescent materials.

But there is no trivalent rare earth ion Yb 3+ 、Er 3+ 、Tm 3+ and Ho 3+ Doped K 3 LuCl 6 Published reports on the use of glass-ceramics in upconversion luminescent materials

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