Texturing technology of diamond wire solar battery piece

Abstract

The invention provides a texturing technology of a diamond wire solar battery piece. The texturing technology solves technical problems that an antireflection effect of the existing conventional chemical method is not remarkable, cost of matching of whole technology of a black silicon technology is increased more than ten times, the existing diffusion technology is not matched with a polycrystalline diamond wire texturing technology, and so on. The texturing technology of the diamond wire solar battery piece comprises the following steps: a, texturing; b, washing a surface of a silicon wafer with ultrapure water; c, alkaline washing; d, washing the surface of the silicon wafer with the ultrapure water; e, washing with mixed acid solution of hydrofluoric acid and hydrochloric acid; f, washing with the ultrapure water and drying. The texturing technology of the diamond wire solar battery piece, provided by the invention, has the advantage of low reflectivity of polycrystalline.

Description

technical field [0001] The invention relates to a texture-making process of a diamond wire solar battery sheet. Background technique [0002] With the development of society, non-renewable resources such as coal and oil are decreasing day by day, and finding and developing new energy sources has become an urgent issue facing mankind. Photovoltaic power generation, as one of the most potential renewable energy utilization methods, has become the main technology to replace traditional petrochemical energy and support the sustainable development of mankind. It has achieved rapid development in recent years and will occupy the world's energy resources in the near future. An important seat for consumption. [0003] In recent years, as the market has higher and higher requirements for battery conversion efficiency and consumption and cost reduction. The cost of diamond wire-cut polycrystalline solar cells is much lower than that of the traditional ingot cutting process, especial...

AI Technical Summary

Problems solved by technology

[0004] ①Conventional chemical method; this method has simple process and low cost, but its anti-reflection effect is not significant;

[0005] ② Black silicon technology; the suede structure of the black silicon technology can be flexibly controlled between nanoscale and micron, and its anti-reflection effect is very good, but the cost is increased by more than ten times when the complete process is matched.

[0006] There is a problem that the existing diffusion process does not match the polycrystalline diamond wire texturing process

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