Rare earth ion doped GdI3 glass ceramic and preparation method thereof

A technology of glass-ceramics and rare earth ions, which is applied in the field of rare-earth ion-doped GdI3 glass-ceramics and its preparation, can solve the problems of poor chemical stability and mechanical strength, low phonon energy, and easy water absorption of crystals, and achieve mechanical Good performance, low phonon energy, and high up-conversion efficiency

Inactive Publication Date: 2016-02-03
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 ha

Method used

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  • Rare earth ion doped GdI3 glass ceramic and preparation method thereof
  • Rare earth ion doped GdI3 glass ceramic and preparation method thereof
  • Rare earth ion doped GdI3 glass ceramic and preparation method thereof

Examples

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Example Embodiment

[0019] Example 1

[0020] Er 3+ , Yb 3+ Doped GdI 3 The mole percentage composition of glass-ceramics is: SiO 2 75mol%, GdI 3 20mol%, ErI 3 0.5mol%, YbI 3 4.5mol%, the process for preparing glass ceramics with the above composition is as follows:

[0021] (1) Weigh gadolinium acetate, erbium acetate and ytterbium acetate, and the weights are respectively based on the GdI in the above molar percentage composition 3 , ErI 3 , YbI 3 Weigh the molar percentage of acetic acid, 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 the triiodoacetic acid and the acetate solution The molar ratio of the total metal ions is 3:1;

[0022] (2) According to the same mole percentage as step (1), SiO 2 Weigh the ethyl orthosilicate and dissolve it in ethanol to obtain the ethyl orthosilicate solution, then mix the mixed solution prepared in step (1) with the ethyl orthosilic...

Example Embodiment

[0026] Example 2

[0027] Tm 3+ , Yb 3+ Doped GdI 3 The mole percentage composition of glass-ceramics is: SiO 2 80.5mol%, GdI 3 15mol%, TmI 3 0.5mol%, YbI 3 4mol%, after the same preparation and heat treatment process as in Example 1, a transparent rare earth ion Tm is obtained 3+ , Yb 3+ Doped GdI 3 Glass-ceramic. The glass-ceramics were measured with a TRIAX550 fluorescence spectrometer, and under the excitation condition of a 970nm laser, strong blue upconversion luminescence was observed.

Example Embodiment

[0028] Example 3

[0029] Er 3+ , Tm 3+ , Yb 3+ Doped GdI 3 The mole percentage composition of glass-ceramics is: SiO 2 81mol%, GdI 3 14mol%, ErI 3 0.4mol%, TmI 3 0.2mol%, YbI 3 4.4mol%, after the same preparation and heat treatment process as in Example 1, a transparent rare earth ion Er 3+ , Tm 3+ , Yb 3+ Doped GdI 3 Glass-ceramic. The glass-ceramics were measured with a TRIAX550 fluorescence spectrometer, and under the excitation condition of a 970nm laser, strong blue, green and red upconversion luminescence was observed.

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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...

Claims

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Application Information

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IPC IPC(8): C03C10/16C03C4/12
Inventor 欧阳绍业张约品张为欢张志雄王倩
Owner NINGBO UNIV
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