Method for producing film with high visible light absorption and high infrared radiation performances

Abstract

The invention discloses a method for producing a film with high visible light absorption and high infrared radiation performances. The film comprises a substrate, an absorption layer and a radiation layer, wherein the substrate is determined according to the application field and is general transparent material; the absorption layer comprises an adhesive layer and a carbonization layer, is a black colored fluffy substance formed by carbonization on the basis of a traditional adhesive layer and has a high visible light absorption performance; the radiation layer is formed by sputtering a high infrared radiation material on the basis of the absorption layer, so that the radiation layer has a rough surface of the traditional absorption layer, and thus the characteristic of the infrared radiation is further improved; and the material of the substrate, the thickness of the absorbing layer and the material and the thickness of the radiation layer are selected according to actual application. The absorbing radiation film can form various refined microstructures by using a micromachining process technologies as well as has high controllability, visible light absorption and infrared radiation performances.

Description

technical field [0001] The invention relates to the technical field of visible light absorption and infrared radiation, in particular to a method for manufacturing a thin film with high visible light absorption and high infrared radiation. Background technique [0002] The utilization of visible light energy, especially sunlight energy, is an important aspect of green energy. At present, the main way to utilize visible light is to absorb visible light energy and then convert it into other forms of energy that can be used, which involves photoelectric conversion materials, photothermal conversion materials, etc. The use of photothermal conversion materials is particularly common, such as solar water heaters, solar thermal power generation and solar houses, solar air conditioners, etc., all use photothermal conversion materials. The commonly used visible light absorbing materials are SiC and ceramics. [0003] The main factors affecting the visible light absorption performan...

AI Technical Summary

Problems solved by technology

However, there are very few materials that can have both high visible light absorption and high infrared radiation properties, and only some ceramic materials have been reported so far.

However, the manufacturing process of ceramic materials is complex, difficult to form, and poor in plasticity, so they cannot be applied in some fields that require microstructure processing.

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