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An orange luminescent material for infrared laser detection and its preparation

A technology of luminescent materials and infrared lasers, applied in luminescent materials, using electric radiation detectors for photometry, chemical instruments and methods, etc., can solve the problems of luminescence quenching, quantitative numerical identification and other problems, and achieve the goal of sensitive infrared detection Effect

Inactive Publication Date: 2015-08-12
SHANGHAI KEYAN PHOSPHOR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]The luminescent materials based on ZnS and CdS are the most 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. Similarly, in the ZnS matrix material, Pb and Cu activators are added, and after high-temperature sintering, an electron-capturing luminescent material is prepared, which produces green or orange under the excitation of infrared ray 800-2000nm Luminescence, the above Chinese patents 96121255.1, 96247084.8, 201010214340.6, 201010214358.6, 2013100020759 have been explained, but they can only identify infrared light qualitatively, and cannot realize quantitative numerical identification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 1000 grams of CdS matrix material, add cobalt acetate, and add Co content 1×10 to every gram of matrix material -3 ; Add copper sulfate, add Cu content 1×10 relative to every gram of matrix material -2 ; Add thallium nitrate, relative to the addition of Tl content per gram of matrix material 1 × 10 -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] Take 100 grams of CdS matrix material, add cobalt acetate, and add Co content 1×10 to each gram of matrix material -2 ; Add copper chloride, relative to adding Cu content 1×10 per gram of matrix material -3 ; Add thallium nitrate, relative to the addition of Tl content per gram of matrix material 1 × 10 -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 at the same time, heat slightly to dissolve. Soak the luminescent material for 1 hour, pour off the reacted liquid, repeat 3 times, then use deionize...

Embodiment 3

[0036] Take 500 grams of CdS matrix material, add cobalt nitrate, and add Co content 2×10 in every gram of matrix material -3 ; Add copper acetate, relative to the addition of Cu content per gram of matrix material 5 × 10 -3 ; Add thallium acetate, relative to the addition of Tl content per gram of matrix material 3 × 10 -4 ; Add indium acetate, relative to adding In content 1×10 per 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 deioni...

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PUM

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Abstract

The invention discloses an orange luminescent material for infrared laser detection and preparation thereof. The orange luminescent material comprises a CdS matrix material, wherein activating agents containing Co, Cu and Tl acid compounds are added, sulphur is added, the mixture is mixed evenly, luminescent material in a cubic phase structure is sintered at high temperature in the protective atmosphere of sulphur, mixed liquor of ammonium hydroxide and hydrogen peroxide is used for washing the luminescent material, deionized water is used for washing the luminescent material to neutral, and the luminescent material is dried by infrared. The emission spectrum of the orange luminescent material for the infrared laser detection is 550 to 590 nm, a prepared infrared electroluminescent detector can be used for detecting, tracking, checking and identifying invisible near-infrared light in a qualitative and quantitative mode, and the orange luminescent material can be widely applied to the fields of near-infrared laser detection, biological diagnosis and the like.

Description

technical field [0001] The invention belongs to the technical field of infrared laser detection and luminescent material application. Background technique [0002] Infrared lasers are commonly used products in the fields of industry, medical treatment, and military affairs. Since infrared light cannot be directly observed by the human visual system, the detection of infrared light highlights the practical application significance. The existing technology of using luminescent materials to detect infrared light is mainly through up-conversion luminescence or infrared quenching technology, and the detection of near-infrared light has been realized. The disadvantage is that photoluminescence detects infrared light, which cannot directly measure the infrared light numerically. strong and weak. [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 calci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/56G01J1/42
Inventor 郑岩周蕾崔越陈磊李兴华黄立华余锡宾
Owner SHANGHAI KEYAN PHOSPHOR TECH