a kind of yb 3+ Activated cubic structure upconversion luminescent material and its preparation method and application

A technology of luminescent material and cubic structure, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of poor chemical stability of halides and fluorides, high synthesis conditions, unfavorable practical applications, etc., and achieves good repetition rate and low cost. , the effect of low price of raw materials

Active Publication Date: 2021-09-21
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies of the prior art, such as the poor chemical stability of halides and fluorides in the matrix of up-conversion luminescent materials, high synthesis conditions, and unfavorable practical application, and provide a Yb 3+ Activated Cubic Upconversion Luminescent Materials

Method used

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  • a kind of yb <sup>3+</sup> Activated cubic structure upconversion luminescent material and its preparation method and application
  • a kind of yb <sup>3+</sup> Activated cubic structure upconversion luminescent material and its preparation method and application
  • a kind of yb <sup>3+</sup> Activated cubic structure upconversion luminescent material and its preparation method and application

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Effect test

Embodiment 1

[0034] a Yb 3+ Activated cubic structure upconversion luminescent material, its chemical structure is Ba 3 Lu 1.89 Yb 0.1 Er 0.01 Zn 5 o 11 , prepared by the following preparation method.

[0035] Barium carbonate, lutetium oxide, zinc oxide, ytterbium oxide, and erbium oxide are selected as starting materials, and the molar ratio of each element is Ba:Lu:Zn:Yb:Er =3:1.89:5:0.1:0.01, corresponding to x=0.1 , y=0.01, 5 kinds of raw materials were weighed respectively, and the total weight of the raw material mixture was controlled to be 20 grams. Carry out thorough grinding and mixing, put it into a high-temperature furnace, bake at 1300°C for 4 hours, take it out when it is cooled to room temperature, and obtain a Yb after grinding and dispersing 3+ Activated cubic structure upconversion luminescent material composed of Ba 3 Lu 1.89 Yb 0.1 Er 0.01 Zn 5 o 11 .

[0036] figure 1 It is the XRD pattern of the up-conversion luminescent material obtained in Example 1 ...

Embodiment 2

[0038] a Yb 3+ Activated cubic structure upconversion luminescent material, its chemical structure is Ba 3 Lu 1.89 Yb 0.1 Ho 0.01 Zn 5 o 11 , prepared by the following preparation method.

[0039] Barium carbonate, lutetium oxide, zinc oxide, ytterbium oxide, and holmium oxide are selected as starting materials, and the molar ratio of each element is Ba:Lu:Zn:Yb:Ho =3:1.89:5:0.1:0.01, corresponding to x=0.1 , y=0.01, 5 kinds of raw materials were weighed respectively, and the total weight of the raw material mixture was controlled to be 20 grams. Carry out thorough grinding and mixing, put it into a high-temperature furnace, bake at 1400°C for 2 hours, take it out when it is cooled to room temperature, and obtain a Yb after grinding and dispersing 3+ Activated cubic structure upconversion luminescent material composed of Ba 3 Lu 1.89 Yb 0.1 Ho 0.01 Zn 5 o 11 . image 3 It is the luminescence spectrum diagram of the green up-conversion luminescent material obtaine...

Embodiment 3

[0041] a Yb 3+ Activated cubic structure upconversion luminescent material, its chemical structure is Ba 3 Lu 1.89 Yb 0.1 T m0.01 Zn 5 o 11 , prepared by the following preparation method.

[0042] Barium carbonate, lutetium oxide, zinc oxide, ytterbium oxide, and thulium oxide are selected as starting materials, and the molar ratio of each element is Ba:Lu:Zn:Yb:Tm =3:1.89:5:0.1:0.01, corresponding to x=0.1 , y=0.01, 5 kinds of raw materials were weighed respectively, and the total weight of the raw material mixture was controlled to be 20 grams. Carry out thorough grinding and mixing, put it into a high-temperature furnace, bake it at 1250°C for 10 hours, take it out when it is cooled to room temperature, and obtain a Yb after grinding and dispersing 3+ Activated cubic structure upconversion luminescent material composed of Ba 3 Lu 1.89 Yb 0.1 T m 0.01 Zn 5 o 11 . Figure 4 It is the luminescence spectrum diagram of the blue up-conversion luminescent material obt...

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Abstract

The present invention relates to a kind of Yb 3+ Activated cubic structure upconversion luminescent material and its preparation method and application. The chemical structural formula of the up-conversion luminescent material is: Ba 3 Lu 2‑x‑y Yb x m y Zn 5 o 11 , where M is the alkali metal ion Er 3+ 、Tm 3+ or Ho 3+ One of: 0.001≤x≤0.5, 0.001≤y≤0.1. The up-conversion luminescent material provided by the present invention uses oxide as the matrix material, has the advantages of low raw material price, good repetition rate, good chemical and thermal stability, etc., and can realize blue, green and orange up-conversion luminescence under the excitation of 980nm infrared light; It can be used in display lighting, laser anti-counterfeiting, fluorescent marking and other fields. The preparation method provided by the invention is simple and feasible, easy to operate, easy to mass produce, pollution-free and low in cost.

Description

technical field [0001] The invention belongs to the field of luminescent materials, in particular to a Yb 3+ Activated cubic structure upconversion luminescent material and its preparation method and application. Background technique [0002] Up-conversion luminescent material is an important functional material. Its special properties make it widely used in the fields of laser anti-counterfeiting, bioluminescent labeling and short-wavelength lasers. Therefore, new up-conversion materials with high conversion efficiency and stable performance can be prepared. Luminescent materials are one of the current hot spots of rare earth luminescent materials. [0003] Rare earth ion-doped upconversion luminescent material hosts are mainly divided into three categories: halides, fluorides and oxides. However, both halides and fluorides currently have significant drawbacks. Halides are chemically unstable and easy to absorb moisture, which is not conducive to practical application. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/78
CPCC09K11/7769
Inventor 吕伟康晓娇凌东雄
Owner DONGGUAN UNIV OF TECH
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