Combustion preparation method of red infrared up-conversion material

An infrared up-conversion, red technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of time-consuming, complicated, and high consumption, and achieve the effects of shortening the reaction cycle, low cost, and reducing the heat treatment temperature

Inactive Publication Date: 2009-06-17
JIAYING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two preparation methods are time-consuming, complicated, and consume a lot of energy. There are no relevant reports on the preparation of red infrared up-conversion materials by combustion method.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Weigh the solid 0.25g NaF, sonicate until it is completely dissolved in twice distilled water to obtain a clear solution A; respectively pipette the pre-prepared concentration of 0.2M Y 3+ 16.0ml, Yb 3+ 3.4ml, Er 3+ 0.6ml of the three solutions were thoroughly mixed to obtain solution B. Mix A and B solutions, stir magnetically at constant temperature for 10 minutes, add 0.6 g of glycine and mix evenly, place in a crucible and heat in an electric furnace. A lot of thick smoke came out in about 10 minutes, and the residue suddenly swelled and burned violently, producing a large amount of snowflake-like white solid. After cooling, a white and powdery red infrared up-conversion material sample was obtained, which emitted bright red light when excited by a 980nm infrared light source.

Embodiment 2

[0012] Weigh the solid 0.175g NaF, and ultrasonically dissolve it in secondary deionized water to obtain a clear solution A; respectively pipette the pre-prepared concentration of 0.2M Y 3+ 16.0ml, Yb 3+ 3.4ml, Er 3+ 0.7ml of the three solutions were mixed thoroughly to obtain solution B. Mix A and B with constant temperature and magnetic stirring for 10 minutes, add 0.3 g of glycine and mix evenly, place in a crucible and heat in an electric furnace. A large amount of thick smoke came out in about 14 minutes, and the residue suddenly swelled and burned violently, producing a large amount of snowflake-like white solid. After cooling, a white and powdery red infrared up-conversion material sample was obtained, which emitted bright red light when excited by a 980nm infrared light source.

Embodiment 3

[0014] Weigh the solid 0.2g NaF, sonicate until it is completely dissolved in the secondary deionized water to obtain a clear solution A; respectively pipette the pre-prepared concentration of 0.2M Y 3+ 20.0ml, Yb 3+ 3.4ml, Er 3+ 1.2ml of the three solutions were thoroughly mixed to obtain solution B. Mix A and B with constant temperature magnetic stirring for 10 minutes, add 0.8 g of glycine and mix evenly, place in a crucible and heat in an electric furnace. A large amount of thick smoke came out in about 9 minutes, and the residue suddenly expanded and burned violently, producing a large amount of snowflake-like white solid. After cooling, a white and powdery red infrared up-conversion material sample was obtained. It emits bright red light when excited by a 980nm infrared light source.

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PUM

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Abstract

The present invention discloses a conflagate preparation method of conversion material on red infrared which belongs to the technical field of luminescent material preparation. In the invention, NaF is taken as base material and adulterated with Y3 + , Yb3+ and Er3+; glycine is taken as incendiary; the conversion material on red infrared is synthesized after burning for more than ten minutes under normal temperature and normal pressure. The present invention significantly reduces heat treating temperature, greatly shortens reaction period with low cost and simple process; the produced material has uniform granularity, good repeatability, regular sample appearance, no need seat grinding, and suitable for industrial scale production. The problem of energy consumption, time consuming, miscellaneous and little varieties of luminous colors of current conversion material on infrared are solved, the application range is expanded, the development and progress of application of conversion material on infrared on biology tag, false proof etc. is promoted.

Description

technical field [0001] The invention belongs to the technical field of luminescent material preparation, and in particular relates to a combustion preparation method of a red infrared up-conversion material. technical background [0002] Infrared up-conversion materials are a type of energy up-conversion materials that are excited by infrared light to convert visible light. In November 2008, the patent information published by the "State Intellectual Property Office of the People's Republic of China" was checked, and there were only 2 patents related to the synthesis of red up-conversion materials. One is "Red Up-conversion Phosphor Powder and Its Preparation Method" (200710144828.4) invented by Harbin Institute of Technology. The core technology is the hydrothermal method, which is reacted after stirring, heat preservation, cooling, centrifugation, cleaning and drying. things. Another patent is "red up-conversion material" (01138926.5) invented by Changchun Kerun Optoelect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/85
Inventor 黄敏文
Owner JIAYING UNIV
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