A kind of super black material and its preparation method and application

A technology of ultra-black materials and light-absorbing materials, applied in the field of ultra-black materials and their preparation, can solve the problems of high cost and inability to carry out large-scale production, and achieve the effects of simple operation, low price of finished products, and easy control of process conditions

Active Publication Date: 2020-08-04
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these methods have the disadvantages of high cost and inability to carry out large-scale production.

Method used

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  • A kind of super black material and its preparation method and application
  • A kind of super black material and its preparation method and application
  • A kind of super black material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The invention provides a kind of preparation method of super black material, comprises the following steps:

[0040] (1) Place the quartz plate in alcohol, clean it with ultrasonic waves for 5 minutes, and dry it for later use;

[0041] (2) Copper acetylacetonate (Cu(acac) 2 , Aldrich Chemical Co, 97%;) placed in the quartz boat, stand-by;

[0042] (3) Place the copper acetylacetonate in the quartz boat in the evaporation zone in the tube furnace, raise the temperature to 150°C, and hold the temperature for 120min. The quartz glass plate (40mm×200mm×2mm) for collecting the samples is placed in the tube furnace. In the deposition area, the temperature is raised to 700°C, the holding time is 120min, and then the tube furnace is closed;

[0043] (4) Close all valves, turn on the vacuum pump to pump air, and after confirming that the system is airtight, set the experimental parameters, turn on the heating button, and feed the carrier gas Ar (flow rate: 200ml / min, purity: ...

Embodiment 2

[0046] The invention provides a kind of preparation method of super black material, comprises the following steps:

[0047] (1) Place the quartz plate in alcohol, clean it with ultrasonic waves for 5 minutes, and dry it for later use;

[0048] (2) Copper acetylacetonate (Cu(acac) 2 , Aldrich Chemical Co, 97%;) placed in the quartz boat, stand-by;

[0049] (3) Copper acetylacetonate in the quartz boat is placed in the evaporation zone in the tube furnace, and the temperature is raised to 150°C. The quartz glass plate (40mm×200mm×2mm) for collecting the samples is placed in the deposition zone of the tube furnace, and the temperature is raised to 150°C. 700°C, the holding time is 120min, and then the tube furnace is closed;

[0050](4) Close all valves, turn on the vacuum pump to pump air, and after confirming that the system is airtight, set the experimental parameters, turn on the heating button, and feed the carrier gas Ar (flow rate: 50ml / min, purity: 99.99%), and keep the...

Embodiment 3

[0053] The invention provides a kind of preparation method of super black material, comprises the following steps:

[0054] (1) Place the quartz plate in alcohol, clean it with ultrasonic waves for 5 minutes, and dry it for later use;

[0055] (2) Copper acetylacetonate (Cu(acac) 2 , Aldrich Chemical Co, 97%;) placed in the quartz boat, stand-by;

[0056] (3) Copper acetylacetonate in the quartz boat is placed in the evaporation zone in the tube furnace, and the temperature is raised to 180°C. The quartz glass plate (40mm×200mm×2mm) for collecting the samples is placed in the deposition zone of the tube furnace, and the temperature is raised to 180°C. 700°C, the holding time is 120min, and then the tube furnace is closed;

[0057] (4) Close all valves, turn on the vacuum pump to pump air, and after confirming that the system is airtight, set the experimental parameters, turn on the heating button, and feed the carrier gas Ar (flow rate: 500ml / min, purity: 99.99%), and mainta...

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Abstract

The invention discloses an ultra-black material and its preparation method and application, belonging to the technical field of nano-material preparation. The ultra-black material is composed of a matrix copper nano-cluster and a graphitized carbon layer loaded on its surface. The core-shell structure is composed of the following components by weight percentage: 51.9-84.3 wt% of copper nano-clusters; 15.7-48.1 wt%. In the present invention, copper acetylacetonate is used as the basic raw material, and the graphitized carbon layer is coated on the surface of copper nanoclusters to form a unique core-shell structure. The obtained ultra-black material has excellent light absorption characteristics, and has significant surface effects and quantum effects. Light loss, copper nano-cluster / carbon ultra-black material has a wide light absorption range, and has good light-absorbing performance in the wavelength range of 200-900nm; the preparation method of the ultra-black material of the present invention is easy to control the process conditions, easy to operate, and the price of the finished product Low cost, low process cost, and beneficial to industrialized production.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to an ultra-black material and its preparation method and application. Background technique [0002] Ultra-black material is a material with a reflectivity of less than 1% and an absorption rate of more than 99% for incident light within a certain range. In many optical devices, sensors, and solar energy converters, there is an urgent need for ultra-black materials in such devices because unnecessary reflection of incident light by the interface will have many adverse effects on performance. At the same time, due to the excellent stealth performance of the ultra-black material itself, it is also of great use in the military. [0003] In view of this, ultra-black materials have been extensively studied and applied in recent years. At present, the most outstanding performance is Vantablack developed by Surrey Nanosystems, which is mainly composed of vert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/02B22F9/30C08K9/12C08K3/08C08K3/04C08L63/00
CPCC08K3/04C08K3/08C08K9/12C08L63/00B22F9/30C08K2003/085C08K2201/011B22F1/16
Inventor 邓联文徐运超罗衡黄生祥王晓廖聪维
Owner CENT SOUTH UNIV
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