Multi-parallel photovoltaic synergistic micro-nano structure processing device and method

Abstract

The invention relates to a multi-parallel photovoltaic synergistic micro-nano structure processing device and method. The device comprises a workpiece, an adsorption platform, a motion module and a laser module, wherein the laser module is composed of a laser, a beam expander and a beam reflector, the laser emits a laser beam, and light spots are amplified by the beam expander and reflected to a light outlet of the laser module through the reflector; the motion module is composed of a servo motor, a coupling, a ball screw, a guide rail and a moving platform, the servo motor and the ball screw are connected through the coupling, and the moving platform is installed on the ball screw and the guide rail. The processing method comprises the steps that the laser module drives a laser head to locate light emission, and the laser head moves relative to the motion module below to obtain workpiece surface microstructures with different widths. The device and method have the advantages that multiple femtosecond lasers are combined to form multiple laser heads, the workpiece surface microstructures are prepared in parallel, and industrial application of the workpiece surface microstructures is achieved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing and production, and in particular relates to a multi-unit parallel photovoltaic synergistic micro-nano structure processing device and method. Background technique [0002] The primary issue of economic development is energy, and the current new energy technology is facing major changes. In the new energy industry strongly supported by the state, the development of green, clean and low-carbon energy has become an important task in response to climate and environmental changes. With the continuous improvement of energy demand, low-carbon, high-efficiency and clean energy is the main direction of world energy development. Therefore, my country Entering a period of major strategic opportunities. The continuous economic growth and increasing energy demand have brought huge challenges to carbon peaking and carbon neutrality, highlighting the importance of developing clean energy instead o...

AI Technical Summary

Problems solved by technology

Existing studies have shown that the micro-nano structure on the surface of solar workpieces can effectively increase the radiation absorption of the solar panel and increase the photoelectric conversion efficiency. However, glass is a hard and brittle material. Traditional processing methods will generate mechanical stress and break the glass. The waste solution of electrochemical etching pollutes the environment, so laser processing is widely used in the hard and brittle material processing industry as a non-contact, high-energy, efficient and economical processing method

[0004] However, there are great differences in the laser absorption rates of different materials for different wavelengths, and the use of ultrashort pulse lasers to process hard and brittle materials has become the first choice

However, when the surface microstructure of the workpiece is prepared on a large area, the efficiency of ultrafast laser processing is low.

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