New Solar Cell Thin Film
Author: Source: Datetime: 2016-10-15 13:59:17
The new applications of picosecond laser technology are just emerging. The main applications include: semiconductor industry, solar powered portable generator energy industry (especially thin film technology), flat display industry, diamond micro-casting, precise aperture and electrode structure, micro-processing, high compression Cylinder injection nozzle and thin glass tube material cutting and drilling. Picosecond laser is a cold vaporization cutting method, pulse picosecond laser power in the high-power laser beam irradiation, the energy quickly injected into a small role in the region 10μm, an instant high-energy density deposition of electron absorption and movement of the way to avoid, Laser linear absorption, energy transfer and diffusion, fundamentally changed the laser-material interaction mechanism. The material is rapidly heated to a gasification temperature without significant melting by the instantaneous heating of the peak power so that the material escapes from the material surface in the form of gas. Shanghai to Capgemini laser, laser beam through the high-speed displacement scanning galvanometer mirror reflection after the flat field lens focused on the surface of the material, repeated circular motion, the material can be completely cut through the separation. Another kind of optical fiber laser is a hot-melt cutting method. When laser and nitrogen are cut, the instantaneous heat or cold is generated, which is easy to produce small cracks and edge rupture. It is easy to hang slag and high operating cost (nitrogen cost 300 yuan / 24 hours)
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