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A green luminescent material for detecting infrared laser and its preparation

A technology of luminescent materials and infrared lasers, applied in luminescent materials, measuring devices, photometry, etc., can solve the problems of luminescence quenching and quantitative value identification, and achieve the effect of sensitive infrared detection

Inactive Publication Date: 2016-03-16
SHANGHAI KERUN PHOSPHOR TECH
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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 capture luminescent material is prepared, which produces green or orange luminescence under the excitation of infrared rays of 800-2000 nm, as described in the above Chinese patents 96121255.1, 96247084.8, 201010214340.6, 201010214358.6, 2013100020759 , they can only recognize infrared light qualitatively, and cannot realize quantitative numerical recognition

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 copper sulfate, add Cu 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 copper chloride, add Cu content 5×10 relative to 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 water to wash t...

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 copper acetate, add Cu content 3×10 relative to 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 , adding water to adjust the paste, adding 40 grams of sulfur, and drying 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 wash...

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PUM

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Abstract

A green luminescent material for detecting infrared lasers and its preparation, which includes a ZnS matrix material, which is added with an activator containing Co, Cu, and Tl acidic compounds, added sulfur, and uniformly mixed, and sintered at a high temperature in a sulfur protective atmosphere to form a cubic phase The structural luminescent material is cleaned with a mixture of ammonia water and hydrogen peroxide, then cleaned with deionized water to neutrality, and then dried by infrared; the infrared laser detects the emission spectrum of the green luminescent material at 520-540nm, and is prepared as an infrared electroluminescent detector . It can be used to realize qualitative and quantitative detection, tracking, proofreading, and identification of invisible near-infrared light, and can be widely used in multidisciplinary technical fields such as near-infrared laser detection, laser spot display, optical information storage, and medical diagnosis.

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] Known up-conversion luminescent materials and electron-capturing luminescent materials are mainly doped rare earth activators such as rare earth fluoride and strontium calcium sul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/56G01J1/58
Inventor 郑岩边静宇全丽华陈磊崔越周蕾余锡宾李兴华
Owner SHANGHAI KERUN PHOSPHOR TECH