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One time cleaning

editor:Realization method: Silicon wafer is floated above chemical reagent and oxidized strongly by nitric acid on nitrite surface. │ Release time:2018-06-26 

Purpose: To increase the absorption of light on the surface of the solar cell sheet and reduce reflection.

The method is realized: the high-concentration acid solution is used to corrode the surface of the silicon wafer to remove the mechanical damage layer, and the suede surface of the egg-like depression is formed to increase the absorption of sunlight and reduce the reflectivity.