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Terbium-containing borate compound, terbium-containing borate polycrystalline compound, optical crystal, preparation method and use thereof

A technology of optical crystals and compounds, applied in boron oxide compounds, chemical instruments and methods, borates, etc., can solve the problems of TGG crystal difficulties, crystal inclusions, serious volatilization, etc., and achieve wide transmission spectrum range, transmission Good performance and low cost

Active Publication Date: 2020-11-10
DEZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Terbium Gallium Garnet Tb 3 Ga 5 o 12 (TGG) crystal is a relatively mature rare earth magneto-optic crystal in the field of magneto-optic crystals. It has high transmittance in the visible and near-infrared regions (Laser Phys. Lett. 2005, 2(10); 489–492) , but there are still some difficulties in obtaining TGG crystals with high optical quality and large size. This is because the raw material Ga 2 o 3 Severe volatilization can easily lead to inclusions inside the crystal (Appl Optics 2002,41(3),483-492)
Another commercial magneto-optic crystal Y 3 Fe 5 o 12 (YIG), low transmittance at 1100nm wavelength

Method used

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  • Terbium-containing borate compound, terbium-containing borate polycrystalline compound, optical crystal, preparation method and use thereof
  • Terbium-containing borate compound, terbium-containing borate polycrystalline compound, optical crystal, preparation method and use thereof
  • Terbium-containing borate compound, terbium-containing borate polycrystalline compound, optical crystal, preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Synthesis of Terbium-Containing Rb by High Temperature Solid State Method 2 ikB 2 o 6 Borate polycrystalline compounds:

[0066] Raw materials: Rb 2 CO 3 0.001mol, Li 2 CO 3 0.005mol, Tb 4 o 7 0.00025mol, H 3 BO 3 0.001mol, the purity of the above raw materials is analytically pure.

[0067] Steps: Weigh the above raw materials, grind them thoroughly, mix them evenly, put them in a 10ml corundum crucible, then place the corundum crucible containing the mixed raw materials in a muffle furnace, heat to 630-670°C, and grind them repeatedly to powder Shape, obtain the terbium-containing borate polycrystalline compound Rb of the present invention 2 ikB 2 o 6 .

[0068] Utilize X-ray powder diffraction to the prepared Rb of embodiment 1 2 ikB 2 o 6 Phase analysis of polycrystalline powder, figure 1 is Rb 2 ikB 2 o 6 The XRD pattern of the polycrystalline compound, where the ordinate is the diffraction intensity, and the abscissa is the diffraction ang...

Embodiment 2

[0071] Growth of Borate Compound Rb Containing Terbium by Flux Method 2 ikB 2 o 6 Single crystal:

[0072] Raw materials: Rb 2 CO 3 0.23mol, Li 2 CO 3 0.15mol, Tb 4 o 7 0.025mol, H 3 BO 3 0.5mol, the purity of the above raw materials is analytically pure. The above raw materials are equivalent to Rb 2 CO 3 Rubidium element in: Li 2 CO 3 Lithium element in: Tb 4 o 7 Terbium element in: H 3 BO 3 The boric acid element in 4.6:3:1:5.

[0073] Steps: 1) Weigh the above-mentioned raw materials, grind and mix them evenly, place them in a platinum crucible, place the platinum crucible containing the mixed raw materials in a muffle furnace, and raise the temperature to 600°C at a rate of 60°C / h to obtain crystals Raw material for growth.

[0074] 2) Put the raw material for crystal growth into a platinum crucible, put it into a crystal growth furnace, heat to melt, and stir for 1-2 days. When the surface temperature of the mixed melt is 1-3°C higher than the sat...

Embodiment 3

[0077] Growth of Terbium-Containing Borate Compound Rb by Flux Pulling Method 2 ikB 2 o 6 Single crystal:

[0078] Raw materials: Rb 2 CO 3 0.23mol, Li 2 CO 3 0.15mol, Tb 4 o 7 0.025mol, H 3 BO 3 0.5mol, the purity of the above raw materials is analytically pure. The above raw materials are equivalent to Rb 2 CO 3 Rubidium element in: Li 2 CO 3 Lithium element in: Tb 4 o 7 Terbium element in: H 3 BO 3 The boric acid element in 4.6:3:1:5.

[0079] Steps: 1) Weigh the above-mentioned raw materials, grind and mix them evenly, place them in a platinum crucible, place the platinum crucible containing the mixed raw materials in a muffle furnace, and raise the temperature to 600°C at a rate of 60°C / h to obtain crystals Raw material for growth.

[0080] 2) Put the raw material for crystal growth into an iridium crucible, put it into a crystal pulling furnace, fill it with nitrogen protection, heat to melt, stir for 1-2 days, and the surface temperature of the mix...

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Abstract

The invention discloses a terbium-containing borate compound. The chemical formula of the terbium-containing borate compound is Rb2LiTbB2O6. The invention also discloses a polycrystalline compound ofthe terbium-containing borate compound, an optical crystal, and a preparation method and application of the optical crystal. The polycrystalline compound can be used as a fluorescent powder matrix, and the optical crystal can be used as a magneto-optical crystal. The terbium-containing borate compound is simple in synthesis and low in cost, grows easily, and has important economic value and scientific research value in the field of solid-state illumination and magneto-optical materials.

Description

technical field [0001] The invention relates to the field of optical crystals. More specifically, it relates to a terbium-containing borate compound, a terbium-containing borate polycrystalline compound, an optical crystal, and a preparation method and use thereof. Background technique [0002] Magneto-optical materials can be used to make magneto-optic modulators, magneto-optic sensors and magneto-optic isolators, etc., and have important application prospects in the fields of laser, computer and optical fiber communication technologies. [0003] Terbium Gallium Garnet Tb 3 Ga 5 o 12 (TGG) crystal is a relatively mature rare earth magneto-optic crystal in the field of magneto-optic crystals. It has high transmittance in the visible and near-infrared regions (Laser Phys. Lett. 2005, 2(10); 489–492) , but there are still some difficulties in obtaining TGG crystals with high optical quality and large size. This is because the raw material Ga 2 o 3 Severe volatilization c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B28/10C30B29/22C01B35/12C09K11/78
Inventor 贾贞张秀玲邢建欣
Owner DEZHOU UNIV
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