Molybdenum borate up-conversion luminescent material activated by ytterbium ion Yb<3+> and preparation method thereof

A technology of luminescent materials and ytterbium ions, applied in the directions of luminescent materials, chemical instruments and methods, can solve the problems of preparation that have not been reported in the literature, and achieve the effects of reducing production costs, stable performance and simple preparation process

Active Publication Date: 2014-03-19
扬州科丰高新产业投资开发集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the up-conversion luminescent material and its preparation of molybdenum borate activated by trivalent ytterbium ions have not been reported in the literature

Method used

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  • Molybdenum borate up-conversion luminescent material activated by ytterbium ion Yb&lt;3+&gt; and preparation method thereof
  • Molybdenum borate up-conversion luminescent material activated by ytterbium ion Yb&lt;3+&gt; and preparation method thereof
  • Molybdenum borate up-conversion luminescent material activated by ytterbium ion Yb&lt;3+&gt; and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] According to the chemical formula Eu 1.9 Yb 0.1 MoB 2 o 9 The stoichiometric ratio of each element in the element is weighed respectively as europium oxide Eu 2 o 3 : 0.059 g, ytterbium oxide Yb 2 o 3 : 1.248 g, ammonium molybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O: 0.601 g, boric acid H 3 BO 3 : 0.4204 grams, after grinding and mixing uniformly in an agate mortar, select the air atmosphere for the first calcining, the temperature is 350 ° C, and the calcining time is 8 hours, then cooled to room temperature, and the sample is taken out. After the first calcination of the raw materials, the mixture is fully mixed and ground again, and the second sintering is carried out at 700°C in an air atmosphere. The sintering time is 8 hours, cooled to room temperature, and the sample is 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 850°C in an air atmosphere. The sinteri...

Embodiment 2

[0036] According to the chemical formula Pr 1.8 Yb 0.2 MoB 2 o 9 The stoichiometric ratio of each element in , respectively weighed praseodymium oxide Pr 6 o 11 : 1.0214 g, ytterbium oxide Yb 2 o 3 : 0.1314 g, ammonium molybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O: 0.601 g, boric acid H 3 BO 3 : 0.4204 g, ground and mixed uniformly in an agate mortar, and then calcined for the first time in an air atmosphere at a temperature of 400 ° C for 7 hours, then cooled to room temperature, and the sample was taken out. After the first calcination of the raw materials, the mixture was fully mixed and ground again, and the second sintering was carried out at 630°C in an air atmosphere. The sintering time was 7 hours, cooled to room temperature, and the samples were taken out. After the raw materials are calcined for the second time, the mixture is fully mixed and ground evenly again, and then sintered for the third time at 900°C in an air atmosphere, the sintering time is 7 hours, an...

Embodiment 3

[0039] According to the chemical formula Nd 1.6 Yb 0.4 MoB 2 o 9 The stoichiometric ratio of each element in the formula is weighed to take neodymium oxide Nd 2 o 3 : 0.8973 g, ytterbium oxide Yb 2 o 3 : 0.2627 g, ammonium molybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O: 0.601 g, boron oxide B 2 o 3 : 0.2367 grams, ground in an agate mortar and mixed evenly, select the air atmosphere for the first calcining, the temperature is 500 ° C, the calcining time is 8 hours, then cooled to room temperature, and the sample is taken out. After the first calcination of the raw materials, the mixture was fully mixed and ground again, and the second sintering was carried out at 680°C in an air atmosphere. The sintering time was 7 hours, cooled to room temperature, and the samples were taken out. After the raw materials are calcined for the second time, the mixture is thoroughly mixed and ground evenly, and then sintered for the third time in an air atmosphere at 800°C for 6 hours and cool...

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Abstract

The invention discloses a molybdenum borate up-conversion luminescent material activated by ytterbium ion Yb<3+> and a preparation method thereof, and belongs to the technical field of inorganic luminescent materials. A chemical constitution of the up-conversion luminescent material is R2-2xYb2xMoB2O9, wherein R is one or any combination of a rare-earth lanthanum ion La<3+>, a praseodymium ion Pr<3+>, a neodymium ion <Nd3+>, a samarium ion Sm<3+>, a europium ion Eu<3+>, a gadolinium ion Gd<3+>, and a terbium ion Tb<3+>; x is ytterbium ion Yb<3+> doped mole percent, and x is more than 0.0001 and is not more than 1.0; glaucous up-conversion luminescence can be realized under the activation of 975nm of infrared laser, so that the molybdenum borate up-conversion luminescent material is applicable to the preparation of an up-conversion laser, the laser anti-counterfeiting, the three-dimensional stereo display and the like, and has wide application prospects in the field of medical diagnosis, laser technology, optoelectronics, high-density photomemory and the like.

Description

technical field [0001] The invention relates to a luminescent material, a preparation method and its application, in particular to an ytterbium ion Yb 3+ The preparation method and application of activated molybdenum borate up-conversion luminescent materials belong to the technical field of inorganic luminescent materials. Background technique [0002] Rare earth ytterbium ion Yb 3+ It is an active ion with very good luminescence performance. It has a wide absorption broadband. Its characteristic light absorption is in the wavelength range of 0.1-1.0 microns. It can be effectively coupled with the InGaAs semiconductor pump source. The pump wavelength is very close to the laser output wavelength. close, the fluorescence efficiency is very high; at the same time, Yb 3+ The energy level structure of ions is very simple, only 2 f 7 / 2 and 2 f 5 / 2 two energy levels; in addition, Yb 3+ Under the higher doping concentration of ions, there is no concentration quenching phenom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/78
Inventor 黄彦林韦之豪袁蓓玲徐传艳秦琳陶正旭关莹
Owner 扬州科丰高新产业投资开发集团有限公司
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