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Preparation for luminescent material for probing and distinguishing middle and far infrared lasers

A technology of infrared lasers and luminescent materials, which is applied in the direction of luminescent materials, chemical instruments and methods, and can solve problems such as near-infrared light luminescence quenching

Inactive Publication Date: 2013-04-03
SHANGHAI KERUN PHOSPHOR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ZnS-based luminescent materials are common and widely used luminescent materials, such as: electroluminescent materials, long-lasting luminescent materials, CRT luminescent materials, etc., usually near infrared Light has a serious quenching effect on its luminescence. In the same ZnS matrix material, Pb and Cu activators are added, and after high temperature sintering, an electron capture luminescent material is prepared, which produces green or orange luminescence under the excitation of infrared 800-2000nm. Chinese patents 96121255.1, 96247084.8, 201010214340.6, 201010214358.6 have explained that they can only detect near-infrared lasers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Get 100 grams of ZnSe matrix material, add lead acetate, and add Pb content 1X10 in relative to every gram of matrix material -4 ; Add copper sulfate, add Cu content 1x10 relative to every gram of matrix material -3 Add 3 grams of flux lithium fluoride, add 3 grams of sulfur. Use water to mix well and dry at 120 degrees. Put the dried material into an alumina crucible, cover and seal it; sinter in an electric furnace at 800 degrees for 3 hours, take it out and cool it.

[0029] The material prepared by the method produces yellow light when irradiated by ultraviolet light, and produces black spots when irradiated by an infrared 10 micron laser light source.

Embodiment 2

[0031] Take 1000 grams of CdSe matrix material, add 300 grams of ZnS material, add lead acetate, and add Ag content 5X10 per gram of matrix material -3 ; Add copper nitrate, relative to adding Cu content 7x10 per gram of matrix material -3 Add 20 grams of fluxing agent sodium chloride, add 50 grams of sulfur. Use water to mix well and dry at 120 degrees. Put the dried material into an alumina crucible, cover and seal it; sinter in an electric furnace at 800 degrees for 4 hours, take it out and cool it.

[0032]The material prepared by the method produces yellow-green light when irradiated by ultraviolet light, and produces black spots when irradiated by an infrared 8-micron laser light source.

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PUM

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Abstract

The invention provides a preparation method for a luminescent material for probing and distinguishing middle and far infrared lasers. The preparation method adopts a ZnSe or CdSe base material. The preparation method is characterized by comprising the following steps in sequence: adding a Cu-containing dominant activator of an acid compound and at least one coactivator containing Pb, Au and Ag of the acid compound; uniformly mixing the dominant activator with the coactivator; drying; and sintering at a high temperature in protective atmosphere, wherein the material can emit visible light of 480 to 610nm after absorbing the ultraviolet ray, and the visible light is quenched under the irradiation of infrared rays of 2 to 10 microns, and black spots are generated at the same time, thus the luminescent material can be used for probing, tracking, calibrating and distinguishing the middle and far infrared lasers, and is applied to the fields such as the laser detecting field and the bio-labeling field.

Description

technical field [0001] The invention belongs to the technical field of far-infrared laser detection and identification applications. Background technique [0002] Infrared lasers are commonly used products in the fields of industry, medical treatment, and military affairs. The existing technology has realized the detection of near-infrared light through up-conversion luminescence or quenching, and it is mainly used in the infrared band of 0.7-1.6 microns. With the development of infrared technology, the use of mid- and far-infrared lasers is becoming more and more widespread. At this stage, detection mainly relies on complex and expensive large-volume infrared thermal imaging instruments. [0003] The known up-conversion luminescent materials and electron-capturing luminescent materials are mainly doped rare earth activators such as rare earth fluoride and strontium calcium sulfide. After absorbing near-infrared energy, they emit light, but they cannot be sensitive to invisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/88
Inventor 郑岩杨瑞馥边静宇余锡宾周蕾黄惠杰黄少华徐征赵谡玲孟立建
Owner SHANGHAI KERUN PHOSPHOR TECH