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Fluoroaluminate near-infrared quantum cutting material, and preparation method and application thereof

A technology of quantum tailoring and fluoroaluminate, applied in luminescent materials, chemical instruments and methods, photovoltaic power generation, etc., can solve problems such as damage to human health and pollution of the environment, and achieve the effect of easy operation and simple synthesis method.

Inactive Publication Date: 2012-07-18
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the preparation process, gases harmful to the human body and the environment will be produced, which will damage human health and pollute the environment.

Method used

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  • Fluoroaluminate near-infrared quantum cutting material, and preparation method and application thereof
  • Fluoroaluminate near-infrared quantum cutting material, and preparation method and application thereof
  • Fluoroaluminate near-infrared quantum cutting material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Fluoroaluminate near-infrared quantum tailoring material Sr 2.97 AlO 4 F:0.01Ce 3+ preparation of

[0034] Strontium carbonate (SrCO 3 )0.7324g, strontium fluoride (SrF 2 ) 0.1256g, alumina (Al 2 o 3 )0.1019g, cerium oxide (CeO 2 ) 0.0034g. Grind and mix the above raw materials in an agate mortar, put them into a corundum crucible, put them into a high-temperature furnace, and raise the temperature to 1200°C at 600°C / h under a reducing atmosphere of CO, keep the temperature at 1200°C for 4 hours, cool, and take out The bulk material is ground to obtain a powder sample. The XRD diffraction pattern of this sample is shown in figure 1 , by combining with SrAlO 4 Compared with the standard card of F, it is found that the positions of the diffraction peaks are exactly the same, indicating that a small amount of Ce is doped 3+ Has no effect on the lattice structure of the matrix. The sample is excited at 401nm, and the room temperature excitation and em...

Embodiment 2

[0035] Example 2: Fluoroaluminate near-infrared quantum tailoring material Sr 2.94 AlO 4 F:0.01Ce 3+ , 0.01Yb 3+ preparation of

[0036] Strontium carbonate (SrCO 3 )0.7279g, strontium fluoride (SrF 2 ) 0.1256g, alumina (Al 2 o 3 )0.1019g, cerium oxide (CeO 2 )0.0034g and ytterbium oxide (Yb 2 o 3 ) 0.0039g. Grind and mix the above-mentioned raw materials in an agate mortar, put them into a corundum crucible, put them into a high-temperature furnace, and raise the temperature to 1200°C at 600°C / h under a reducing atmosphere of CO, keep the temperature at 1200°C for 4 hours, cool, and take out The bulk material is ground to obtain a powder sample. The XRD diffraction pattern of this sample is shown in figure 2 , by combining with SrAlO 4 Compared with the standard card of F, it is found that the positions of the diffraction peaks are exactly the same, indicating that a small amount of Ce is doped 3+ , Yb 3+ Has no effect on the lattice structure of the matrix. ...

Embodiment 3

[0037] Example 3: Fluoroaluminate near-infrared quantum tailoring material Sr 2.82 AlO 4 F:0.01Ce 3+ , 0.05Yb 3+

[0038] Strontium carbonate (SrCO 3 )0.7103g, strontium fluoride (SrF 2 ) 0.1256g, alumina (Al 2 o 3 )0.1019g, cerium oxide (CeO 2 )0.0034g and ytterbium oxide (Yb 2 o 3 ) 0.0197g. Grind and mix the above-mentioned raw materials in an agate mortar, put them into a corundum crucible, put them into a high-temperature furnace, and raise the temperature to 1200°C at 600°C / h under a reducing atmosphere of CO, keep the temperature at 1200°C for 4 hours, cool, and take out The bulk material is ground to obtain a powder sample. The XRD diffraction pattern of this sample is shown in image 3 , by combining with SrAlO 4 Compared with the standard card of F, it is found that the positions of the diffraction peaks are exactly the same, indicating that a small amount of Ce is doped 3+ , Yb 3+ Has no effect on the lattice structure of the matrix. The sample is ex...

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Abstract

The invention discloses a fluoroaluminate near-infrared quantum cutting material, and a preparation method and application thereof. The fluoroaluminate near-infrared quantum cutting material has a chemical formula: Sr3(0.99-x)AlO4F: 0.01Ce<3+> and xYb<3+> (x is not less than 0 and not more than 0.1). The preparation method for the fluoroaluminate near-infrared quantum cutting material comprises the followings steps of: weighing a strontium raw material, an aluminium raw material, a cerium raw material and a ytterbium raw material according to the molar ratio in the chemical formula; and grinding each material and mixing uniformly, then heating to 1200 DEG C at the speed of 600 DEG C / h under the CO reducing atmosphere, keeping the constant temperature of 1200 DEG C for 4 h, and cooling to obtain the powdered fluoroaluminate near-infrared quantum cutting material. The fluoroaluminate near-infrared quantum cutting material disclosed by the invention has the advantages of high luminous intensity, good stability, high quantum efficiency and environment-friendliness.

Description

technical field [0001] The invention relates to a novel near-infrared quantum tailoring material and its preparation method and application, in particular to a fluoroaluminate near-infrared quantum tailoring material and its preparation method and application. Background technique [0002] Quantum clipping (down-conversion) near-infrared luminescent material: it clips a high-energy photon (usually in the wavelength range of 300-500nm) into multiple near-infrared photon quanta with wavelength λ≈1000nm. The tailoring effect can realize the tailoring process through the energy level transition of a single ion, the energy transfer between ion pairs, and the energy transfer between ions and substrates. [0003] Previous studies on the quantum tailoring effect were limited to the visible light region, and have begun to expand to the near-infrared region in recent years. Near-infrared quantum tailoring refers to the conversion of one visible photon into two near-infrared photons, ...

Claims

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Application Information

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IPC IPC(8): C09K11/64H01L31/055
CPCY02E10/50Y02E10/52
Inventor 孙家跃杜海燕孙翊宁
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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