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Blue luminescent material for infrared laser detection and preparation method

A blue luminescent material, infrared laser technology, applied in the field of infrared laser detection and luminescent material application, can solve the problems of luminescence quenching, only qualitative identification, unable to achieve quantitative identification, etc., to achieve the effect of sensitive infrared detection

Active Publication Date: 2015-05-13
SHANGHAI DONGZHOU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The luminescent material based on ZnS is the most common and widely used luminescent material, such as: electroluminescent material, long afterglow luminous material, CRT luminescent material, etc. Usually, near-infrared light has a serious quenching effect on its luminescence, and the same ZnS matrix In the material, Pb and Cu activators are added, and after high-temperature sintering, an electron-capturing luminescent material is prepared, which produces green or orange luminescence under the excitation of infrared rays of 800-2000nm. , they can only qualitatively identify infrared light, and cannot achieve quantitative identification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Get 1000 grams of ZnS matrix material, add cobalt acetate, and add Co content 1X10 in relative to every gram of matrix material -3 ; Add silver sulfate, add Ag content 2X10 relative to every gram of matrix material -2 ; Add thallium nitrate, relative to adding Tl content 1×10 per gram of matrix material -4 ; Add water to adjust the paste, add 20 grams of sulfur, and dry at 120 degrees. Add 3% sulfur to the above powder and grind it evenly. Put the dried material into an alumina crucible, cover and seal it; sinter in an electric furnace at 750 degrees for 10 hours, take it out, cool and pulverize it, and then anneal at a temperature of 300 degrees for 8 hours.

[0031] Configure 10 liters of a mixture of 15% ammonia water and 20% hydrogen peroxide in a beaker, soak the luminescent material for 1 hour, pour off the reacted liquid, repeat 3 times, then use deionized water to wash to neutral, and 120 degrees dry.

Embodiment 2

[0033] Get 100 grams of ZnS matrix material, add cobalt acetate, and add Co content 1X10 in the matrix material relative to each gram -2 ; Add silver chloride, relative to adding Ag content 5×10 in every gram of matrix material -2 ; Add thallium nitrate, relative to adding Tl content 1×10 per gram of matrix material -3 Add water to adjust the paste, add 3 grams of sulfur, and dry at 120 degrees. Add 3% sulfur to the above powder and grind it evenly. Put the dried material into a quartz tube, cover and seal it; sinter in an electric furnace at 800 degrees for 8 hours, take it out, cool and pulverize it, and then anneal at a temperature of 300 degrees for 10 hours.

[0034] Prepare 1 liter of a mixture of 15% ammonia water and 20% hydrogen peroxide in a beaker, add 50 grams of ammonium carbonate and 50 grams of ammonium chloride, and heat slightly to dissolve. Soak the luminescent material for 1 hour, pour off the reacted liquid, repeat 3 times, then use deionized wat...

Embodiment 3

[0036] Get 500 grams of ZnS matrix material, add cobalt nitrate, and add Co content 2X10 in relative every gram matrix material -3 ; Add silver acetate, relative to adding Ag content 3×10 in every gram of matrix material -2 ; Add thallium acetate, relative to adding Tl content 3×10 per gram of matrix material -4 ; Add indium acetate, add In content 1X10 relative to every gram of matrix material -4 , add water to adjust the paste, add 40 grams of sulfur, and dry at 120 degrees. Add 3% sulfur to the above powder and grind it evenly. Put the dried material into an alumina crucible, cover and seal it; sinter in an electric furnace at 750 degrees for 10 hours, take it out, cool and pulverize it, and then anneal at a temperature of 300 degrees for 8 hours.

[0037] Configure 5 liters of a mixture of 15% ammonia water and 20% hydrogen peroxide in a beaker, soak the luminescent material for 1 hour, pour off the reacted liquid, repeat 3 times, and then use deionized water to ...

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PUM

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Abstract

The invention discloses a blue luminescent material for infrared laser detection and a preparation method. The blue luminescent material comprises a ZnS substrate material. The preparation method comprises the following steps: adding an activating agent containing Co, Ag and Tl acid compounds; adding sulfur; uniformly mixing; sintering into a luminescent material having a cubic phase structure at high temperature under a sulfur protective atmosphere; washing with mixed liquid of ammonium hydroxide and hydrogen peroxide; washing to neutrality with deionized water; and drying with infrared rays. The emission spectrum of the blue luminescent material for infrared laser detection is 430-470 nm; an infrared electroluminescent detector prepared through the blue luminescent material has the infrared laser intensity which is inversely proportional to the working current of the luminescent material. The blue luminescent material can be applied to qualitative and quantitative detection, tracking, calibration and identification for invisible near-infrared light and can be widely applied to the fields such as near-infrared laser detection, biological diagnosis and medical monitoring.

Description

Technical field [0001] The invention is the field of infrared laser detection and lighting materials. Background technique [0002] Infrared laser is commonly used in industrial, medical, military and other fields. Since infrared light has the characteristics of human visual systems that cannot directly observe, the detection of infrared light highlights the actual application significance.The existing use of luminous materials to detect infrared light technology is mainly through the transformation of luminous or infrared ham, which has achieved the detection of near -infrared light. The disadvantage is that the light emittering detects infrared light. It cannot directly measure the infrared light.Strong and weak. [0003] Known transformation of light -emitting materials and electronic capture luminous materials are mainly doped rare earth activists such as rare earth fluoride and vulcanized calcium calcium. After absorbing near infrared energy, it generates light. China Patent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/56
Inventor 郑岩黄立华周蕾崔越黄惠杰李兴华
Owner SHANGHAI DONGZHOU IND