Production method of light energy anti-reflection sheet provided with metal nano-particle array

Abstract

The invention relates to a production method of a light energy anti-reflection sheet provided with a metal nano-particle array, and belongs to the field of micro-nano optical and solar energy materials. The production method comprises the following steps of: preparing a laser beam collector and a nano-particle deposition substrate; preparing a nano-scale noble metal suspension; performing deposition; and washing and drying. According to the production method, a right rectangular pyramid platform made from transparent optical glass is used as the laser beam collector and the deposition substrate, four completely-same parallel laser beams which are respectively vertical to four side surfaces of the pyramid platform are shot into the right rectangular pyramid platform and the substrate, and two-dimensional laser evanescent wave sanding waves generated by laser total reflection are used for performing radiation treatment on the noble metal nano-particle suspension at normal temperature and normal pressure. Therefore, the production method has the characteristics that the structure of a deposition device and a deposition process are simple and reliable, the requirement on process condition is low, different noble metals can be deposited, the array cycle and the height can be conveniently adjusted, the energy consumption and the manufacturing cost are low, the deposition of the noble metal nano-particle array can be performed on a large area and the like.

Description

technical field [0001] The invention relates to the field of micro-nano optics and solar cell (material) production technology, in particular to a nanoparticle array of gold, silver, platinum and other precious metals (gold, silver, platinum, etc.) deposited on the surface of optical glass that can enhance light energy absorption. A production method of a light energy anti-reflection sheet, the light energy anti-reflection sheet can reduce the reflectivity of sunlight and improve the absorption efficiency of solar energy; it can be used to enhance the absorption of sunlight energy on the surface of solar cells, and can also be used to absorb electromagnetic wave energy in some frequency bands. enhanced absorption. Background technique [0002] Energy is an indispensable part of human life and production. Currently, fossil fuels are the main source of energy, but due to their limited storage and overexploitation, people have turned their attention to emerging energy sources ...

AI Technical Summary

Problems solved by technology

This method has the following defects: 1. The area of ​​the silicon wafer as the deposition base is limited and cannot be deposited on a large area; The period is half of the wavelength of the standing wave field of the laser. The period of the array is limited by the wavelength of the laser and cannot be changed, and point array deposition cannot be performed; that is, specific elements can only be made into an array with a specific period; thirdly, the temperature must be as high as 1575°C The atomic beam emitter is carried out in a vacuum environment and the atomic beam needs to be collimated; therefore, the device is complex, the precision of the whole device is high, the deposition time is long and limited by the size of the atom, etc.

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