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A kind of rare earth infrared luminescent material and preparation method thereof

An infrared luminescence and rare earth technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of difficult preparation process, low energy transfer, increase production cost, etc., and achieve the effect of simple process and low cost of raw materials

Active Publication Date: 2017-01-18
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The rare earth infrared material currently used is still the traditional yttrium aluminum garnet material. The preparation process of this type of material is difficult and the reaction temperature is high. It must be pulled into a single crystal to achieve the commercial purpose of all-weather stable use. Therefore, the corresponding increase in production cost
The rare earth infrared materials reported at present are mostly oxysilicates or aluminosilicates activated by rare earth or bismuth ions. Their visible light luminescence effect is better, but the energy transfer between their ions is relatively low, so their infrared luminescence lower strength

Method used

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  • A kind of rare earth infrared luminescent material and preparation method thereof
  • A kind of rare earth infrared luminescent material and preparation method thereof
  • A kind of rare earth infrared luminescent material and preparation method thereof

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preparation example Construction

[0052] The invention provides a preparation method of a rare earth infrared luminescent material, comprising the following steps:

[0053] Mixing the Sr-containing compound, the M-containing compound, the X-containing compound and the Re-containing compound to obtain a first mixture;

[0054] Wrapping the first mixture with the second mixture, sintering, and removing the wrapping layer to obtain a rare earth infrared luminescent material;

[0055] The second mixture includes one or more of Sr-containing compounds, silicon dioxide, silicate, alumina, zirconia, X-containing compounds, Z-containing compounds and Re-containing compounds, and Z in the Z-containing compound One or more selected from Ga, Lu, Y, In, La, Gd and Bi;

[0056] The rare earth infrared luminescent material has the general formula shown in formula I:

[0057] [Sr (1-a-b-c) m a x b ]O:cRe formula I;

[0058] In formula I, M, X and Re are all dopant ions, a, b and c are mole percentage coefficients of co...

Embodiment 1

[0081] According to the chemical formula (Sr 0.85 Zr 0.04 Ca 0.10 )O:0.01Nd Accurately weigh SrO, ZrO 2 , CaO, Nd 2 o 3 After mixing well, and SiO 2 As a wrapping layer, sinter in air at 1400°C for 6 hours, after cooling to room temperature, remove the wrapping layer, and fully grind the sintered product without the wrapping layer to obtain a rare earth infrared luminescent material.

[0082] The present invention carries out X-ray diffractometer test to the obtained rare earth infrared luminescent material, and the test result is as follows: figure 1 as shown, figure 1 For the X-ray diffraction spectrum of the infrared luminescent material prepared in Example 1 to Example 14 of the present invention, from figure 1 It can be seen that the main phase of the rare earth infrared luminescent material prepared in Example 1 of the present invention is SrO.

[0083] The present invention carries out the test of excitation emission spectrum to the obtained rare earth infrared ...

Embodiment 2

[0085] According to the chemical formula (Sr 0.925 Si 0.02 Ca 0.05 )O:0.005Er Accurately weigh SrCO 3 , SiO 2 , CaCO 3 , Er 2 o 3 After mixing well, and ZrO 2 As a wrapping layer, sinter in air at 1400°C for 5 hours, after cooling to room temperature, remove the wrapping layer, and fully grind the sintered product without the wrapping layer to obtain a rare earth infrared luminescent material.

[0086] The present invention carries out X-ray diffractometer test to the obtained rare earth infrared luminescent material, and the test result is as follows: figure 1 as shown, figure 1 For the X-ray diffraction spectrum of the infrared luminescent material prepared in Example 2 of the present invention, from figure 1 It can be seen that the main phase of the rare earth infrared luminescent material prepared in Example 2 of the present invention is SrO. The present invention carries out the test of excitation emission spectrum to the obtained rare earth infrared luminescent...

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Abstract

The invention provides a rare earth infrared luminescent material and a preparation method thereof, the rare earth infrared luminescent material has a general formula of formula I: [Sr(1-a-b-c)MaXb]O:cRe formula I; wherein, a, b and c are mole percentage coefficients of corresponding doping ions relative to Sr atoms, a=0~0.05, b=0~0.15, c=0.0001~0.08; M includes B, Al, Ga, In, Zr, Si, One or more of Sc, Y, La, Gd, Lu and Bi; X includes one or more of Li, Na, K, Mg, Ca and Ba; Re includes Nd, Ho, Er, Tm and One or more of Yb. The host material of the rare-earth infrared luminescent material is strontium oxide, and when the host material absorbs energy, it transfers the energy to the infrared luminescent central ion, that is, the rare earth ion, and emits infrared light with high luminous intensity and high luminous efficiency.

Description

technical field [0001] The invention belongs to the technical field of infrared luminescent materials, and in particular relates to a rare earth infrared luminescent material and a preparation method thereof. Background technique [0002] Rare earth infrared luminescent material is a new type of luminescent material, which can effectively absorb ultraviolet or visible light and emit it in the form of specific narrow-wavelength light. It is widely used in night vision lighting, optical fiber communication, missile guidance, light amplification and bioluminescence. In the field of marking, due to the different attenuation of various infrared wavelengths in different substrates, infrared light has a high selectivity in the application field. Therefore, it is necessary to develop infrared light-emitting materials with multiple wavelengths. [0003] The rare earth infrared material currently used is still the traditional yttrium aluminum garnet material. The preparation process o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/67C09K11/59C09K11/55C09K11/64C09K11/78C09K11/74
Inventor 李成宇傅继澎庞然姜丽宏张粟
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI