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Vanadate up-conversion light-emitting material activated by erbium ions Er<3+> and preparation method thereof

A technology of luminescent materials and erbium ions, which is applied in the fields of luminescent materials and preparation, vanadate up-conversion luminescent materials and preparation, can solve the problems of poor thermal stability, poor mechanical strength, strong hygroscopicity, etc., and achieve stable performance and equipment requirements The effect of low cost and simple process

Inactive Publication Date: 2012-09-12
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the defects of strong hygroscopicity, poor mechanical strength, and poor thermal stability of fluoride or oxyfluoride substrates, their practical applications have been limited to a certain extent.

Method used

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  • Vanadate up-conversion light-emitting material activated by erbium ions Er&lt;3+&gt; and preparation method thereof
  • Vanadate up-conversion light-emitting material activated by erbium ions Er&lt;3+&gt; and preparation method thereof
  • Vanadate up-conversion light-emitting material activated by erbium ions Er&lt;3+&gt; and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh sodium carbonate Na 2 CO 3 : 0.53 g, yttrium oxide Y 2 o 3 : 0.5419 g, magnesium basic carbonate C 4 Mg 4 o 12 ·H 2 MgO 2 ·5H 2 O: 0.9713 g, ammonium vanadate NH 4 VO 3 : 1.7547 g, erbium oxide Er 2 o 3: 0.0383 g, after grinding and mixing uniformly in an agate mortar, select the air atmosphere for the first calcination, the temperature is 350 ℃, the calcination time is 8 hours, then cool to room temperature, and take out the sample. After the first calcination of the raw materials, the mixture was fully mixed and ground again, and the second sintering was carried out at 950°C in an air atmosphere. The sintering time was 8 hours, cooled to room temperature, and the samples were taken out. After the raw material is calcined for the second time, the mixture is fully mixed and ground evenly, and then sintered for the third time at 1380°C in an air atmosphere. The sintering time is 6 hours and cooled to room temperature to obtain a powder doped rare earth....

Embodiment 2

[0030] Weigh sodium carbonate Na 2 CO 3 : 0.53 g, gadolinium oxide Gd 2 o 3 : 0.8156 g, magnesium basic carbonate C 4 Mg 4 o 12 ·H 2 MgO 2 ·5H 2 O: 0.9713 g, ammonium vanadate NH 4 VO 3 : 1.7547 g, erbium oxide Er 2 o 3 : 0.0956 g, after grinding and mixing uniformly in an agate mortar, select the air atmosphere for the first calcination, the temperature is 400 ℃, the calcination time is 6 hours, then cool to room temperature, and take out the sample. After the first calcination of the raw materials, the mixture was thoroughly mixed and ground again, and then sintered for the second time at 1000°C in an air atmosphere. The sintering time was 7 hours, cooled to room temperature, and the samples were taken out. After the raw material is calcined for the second time, the mixture is fully mixed and ground evenly, and then sintered for the third time at 1350°C in an air atmosphere. The sintering time is 8 hours and cooled to room temperature to obtain powder doped rare ...

Embodiment 3

[0033] Weigh sodium nitrate NaNO 3 : 0.8499 g, dysprosium oxide Dy 2 o 3 : 0.651 g, magnesium basic carbonate C 4 Mg 4 o 12 ·H 2 MgO 2 ·5H 2 O: 0.9713 g, ammonium vanadate NH 4 VO 3 : 1.7547 g, erbium oxide Er 2 o 3 : 0.2869 grams, ground in an agate mortar and mixed evenly, select the air atmosphere for the first calcining, the temperature is 500 ℃, the calcining time is 4 hours, then cool to room temperature, take out the sample. After the first calcination of the raw materials, the mixture was fully mixed and ground again, and the second sintering was carried out at 1100°C in an air atmosphere. The sintering time was 5 hours, cooled to room temperature, and the samples were taken out. After the raw material is calcined for the second time, the mixture is fully mixed and ground evenly again, and then sintered for the third time at 1400°C in an air atmosphere. Na ion Erbium 2 Dy 0.7 Er 0.3 Mg 2 V 3 o 12 Up-converting luminescent phosphors.

[0034] See atta...

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Abstract

The invention discloses a vanadate up-conversion light-emitting material activated by erbium ions Er<3+> and a preparation method thereof. The molecular formula of the vanadate up-conversion light-emitting material is Na2R1-xErxMg2V3O12, wherein R is one or more of rare earth ions Gd<3+>, La<3+>, Y<3+> and Dy<3+>; x is the mol percentage of doped Er<3+>; and x is more than or equal to 0.001 and is less than or equal to 1. The preparation method comprises the following steps of: weighing raw materials according to a ratio and uniformly milling; carrying out primary pre-burning sintering at 300-950 DEG C; cooling and then uniformly milling; carrying out secondary sintering on the mixed material at 950-1300 DEG C; after uniformly milling, sintering the mixed material at 1300-1500 DEG C; and cooling and milling so as to obtain the vanadate up-conversion light-emitting material. The vanadate up-conversion light-emitting material has the advantages of good chemical stability and heat stability, and high brightness and high color purity under an infrared laser light source; and the vanadate up-conversion light-emitting material has a wide prospect in application fields of vanadate up-conversion fluorescent powder, high-density light storage, fluorescent probes, high-resolution display and the like.

Description

technical field [0001] The invention relates to a luminescent material and a preparation method, in particular to a vanadate up-conversion luminescent material and a preparation method, and belongs to the technical field of inorganic luminescent materials. Background technique [0002] An up-conversion material is a fluorescent material that emits visible light when excited by infrared light, that is, a material that converts infrared light into visible light. [0003] The up-conversion effect makes infrared light invisible to the human eye into visible light, and has broad application prospects in the fields of up-conversion phosphors, laser technology, high-density optical storage, fluorescent probes for biomolecules, and high-resolution displays. Manufacturing short-wavelength lasers and realizing laser upconversion is a prominent application of upconversion materials. Technologies such as high-density optical data storage technology, submarine optical communication, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/82
Inventor 黄彦林韦之豪袁蓓玲徐传艳
Owner SUZHOU UNIV
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