Use of photochromic cadmium sulfide comb-shaped semiconductor micro-nano material

A technology of micro-nano materials and photochromism, which is applied in the direction of color-changing fluorescent materials, fiber raw material processing, chemical instruments and methods, etc., to achieve the effects of rich color changing range, simple production, and wide source of raw materials

Inactive Publication Date: 2013-10-30
刘瑞斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the new photochromic researches are concentrated on azos, diarylethenes and related heterocyclic compounds, and these materials can only achieve partial color transformation.

Method used

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  • Use of photochromic cadmium sulfide comb-shaped semiconductor micro-nano material
  • Use of photochromic cadmium sulfide comb-shaped semiconductor micro-nano material
  • Use of photochromic cadmium sulfide comb-shaped semiconductor micro-nano material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of cadmium sulfide comb semiconductor micro-nano material, this material is cadmium sulfide (CdS) doped with tin (Sn), calculated with the amount of the total substance of this material, with transmission electron microscope (TEM) or scanning electron microscope (SEM) The equipped energy spectrometer can characterize the molar content of tin within 1%.

[0028] A preparation method of cadmium sulfide comb semiconductor micro-nano material, the steps are: uniformly stirring cadmium sulfide and tin dioxide in a mortar for 10 minutes according to the molar ratio of 100:8; Clean it in the oven for 10 minutes, and after drying, use an ion sputtering device to plate gold for 60 seconds, and clean the porcelain boat and quartz tube for later use. Then put CdS and SnO 2Put the mixture into a porcelain boat, and place the porcelain boat in the center of the quartz tube. A gold-plated silicon wafer was placed in another porcelain boat, placed upstream of the gas flow of ...

Embodiment 2

[0030] A preparation method of cadmium sulfide comb semiconductor micro-nano material, the steps are: uniformly stirring cadmium sulfide and tin dioxide in a mortar for 10 minutes according to the molar ratio of 100:10; Clean it in the oven for 10 minutes, and after drying, use an ion sputtering device to plate gold for 60 seconds, and clean the porcelain boat and quartz tube for later use. Then put CdS and SnO 2 Put the mixture into a porcelain boat, and place the porcelain boat in the center of the quartz tube. A gold-plated silicon wafer was placed in another porcelain boat, placed upstream of the gas flow of the quartz tube, 11 cm from the center of the quartz tube. Put the quartz tube into the tube furnace. The upstream of the quartz tube is first connected to the flow meter, then connected to the exhaust system, and the downstream is connected to the exhaust gas treatment system, and then the mixed gas of argon and hydrogen is introduced. After exhausting for one hour, ...

Embodiment 3

[0036] A preparation method of cadmium sulfide comb semiconductor micro-nano material, the steps are: uniformly stirring cadmium sulfide and tin dioxide in a mortar for 10 minutes according to the molar ratio of 100:12; Clean it in the oven for 10 minutes, and after drying, use an ion sputtering device to plate gold for 60 seconds, and clean the porcelain boat and quartz tube for later use. Then put CdS and SnO 2 Put the mixture into a porcelain boat, and place the porcelain boat in the center of the quartz tube. A gold-plated silicon wafer was placed in another porcelain boat, placed upstream of the gas flow of the quartz tube, 11 cm from the center of the quartz tube. Put the quartz tube into the tube furnace. The upstream of the quartz tube is first connected to the flow meter, then connected to the exhaust system, and the downstream is connected to the exhaust gas treatment system, and then the mixed gas of argon and hydrogen is introduced. After exhausting for one hour, ...

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Abstract

The invention relates to a use of a photochromic cadmium sulfide comb-shaped semiconductor micro-nano material and belongs to the technical field of photochromism. The photochromic cadmium sulfide comb-shaped semiconductor micro-nano material can be used as an anti-counterfeit material, a military wave-absorbing material, a decorative material or a biological fluorescent labeling material and can be used for a laser display field, a laser television field, a biological chip field or a laser cryptography field. The invention provides a novel approach for a cadmium sulfide nano-comb doped with tin in color change application. The photochromic cadmium sulfide comb-shaped semiconductor micro-nano material has the characteristics of low cost, simple making method and wide raw material sources. Compared with the existing color-variable material, the photochromic cadmium sulfide comb-shaped semiconductor micro-nano material is obtained more easily, realizes real-time color change, and has more color change choices and wider color change ranges. The photochromic cadmium sulfide comb-shaped semiconductor micro-nano material has wide application prospects in fields of laser display, laser television, anti-counterfeit materials and military wave-absorbing materials.

Description

technical field [0001] The invention relates to the application of a cadmium sulfide comb semiconductor micro-nano material, which belongs to the technical field of photochromism. Background technique [0002] Every color that appears in the real world, whether it is the color of different lights at night or the colorful billboards we see during the day, has its inherent technical origin and material foundation. The existence of photochromic materials and photochromic technology makes it possible to freely switch various colors, thus making the world we live in more colorful. Usually, photochromism is defined as: under the excitation of an external excitation source, the phenomenon of a color change of a substance is called discoloration. Photochromism means that when a compound A is irradiated by light of a certain wavelength, a photochemical reaction can occur to obtain a product B, and the colors of A and B (that is, the absorption of light) are obviously different. B c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K9/00D21H21/48
Inventor 刘瑞斌
Owner 刘瑞斌
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