Cadmium sulfide pectinate semiconductor micro/nano material and preparation method thereof

A micro-nano material, cadmium sulfide technology, applied in the field of photochromism, to achieve the effect of easy realization, rich color changing range and simple production

Inactive Publication Date: 2012-09-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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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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  • Cadmium sulfide pectinate semiconductor micro/nano material and preparation method thereof
  • Cadmium sulfide pectinate semiconductor micro/nano material and preparation method thereof
  • Cadmium sulfide pectinate semiconductor micro/nano material and preparation method thereof

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 cadmium sulfide pectinate semiconductor micro / nano material and a preparation method thereof, belonging to the technical field of photochromism. The preparation method comprises the following steps: putting cadmium sulfide and tin dioxide at the center of a quartz pipe of a pipe furnace, putting a gold-plated silicon wafer as a substrate into upstream or downstream the air flow of the quartz pipe of the pipe furnace, introducing carrier gas, heating, keeping the temperature for 1-3 hours, shutting down the pipe furnace, continuing introducing carrier gas, and cooling to room temperature to obtain the tin-doped cadmium sulfide pectinate micro / nano material. The tin-doped cadmium sulfide pectinate micro / nano material has the new application of color variations, and has the characteristics of low cost, simple preparation process and wide raw material sources. Compared with the existing photochromic material, the cadmium sulfide pectinate semiconductor micro / nano material is easier to implement, can implement color variations in real time, and has more color options, so that the photochromic range is more abundant. The invention can be widely applied to the fields of laser display, laser televisions, anti-counterfeiting materials and military wave-absorbing materials.

Description

technical field [0001] The invention relates to a cadmium sulfide comb-like semiconductor micro-nano material and a preparation method thereof, belonging 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G11/02B82Y40/00
Inventor 刘瑞斌邹炳锁张春花
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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