Rare earth ion doped GdI3 glass ceramic and preparation method thereof

Abstract

The invention discloses rare earth ion doped GdI3 glass ceramic which comprises the following elements by mole percent: 75-90mol% of SiO2, 9.5-20mol% of GdI3 and 0.5-5mol% of LnCl3, wherein LnCl3 is at least one of YbCl3, ErCl3, TmCl3 and HoCl3. The rare earth ion doped GdI3 glass ceramic has the advantages as follows: the prepared rare earth ion doped GdI3 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 GdI used as an up-conversion luminescent material 3 Glass-ceramic and its preparation method. Background technique [0002] Upconversion luminescence is a process that utilizes the absorption of multiple photons to generate radiative transitions, and the energy of the radiated photons is usually higher than that of the pump photons. 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 of the host material, mainly because the lower phonon energy c...

AI Technical Summary

Problems solved by technology

QUR 3 Crystals have lower phonon energy than fluoride, and are more suitable as rare earth doped upconversion luminescent hosts, rare earth ion doped GdI 3 crystals have higher upconversion efficiency than fluoride crystals doped with rare earth ions, but GdI 3 Crystals are easy to absorb water, require special handling and storage, are difficult to prepare, and have poor chemical stability and mechanical strength, which affect their practical applications.

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

Images