Research progress on diamond wire sawn monocrystalline silicon texturing
This paper introduces several common texturing techniques for monocrystalline silicon wa-fers,including additive-assisted alkaline etching,acidic etching,metal ion-catalyzed chemical textur-ing,and surface pretreatment(thermal treatment,mechanical polishing,and electrochemical pre-treatment)combined with alkaline etching.The texturing principles,technical characteristics,and ap-plication situations of these different processes are compared and analyzed.The comparative analysis indicates that the additive-assisted alkaline etching process is widely applied.The thermal treatment combined with alkaline etching process,compared to other texturing techniques,can reduce the con-sumption of chemical solutions and silicon material,and simplify process steps,thus achieving the goals of reducing the manufacturing cost of crystalline silicon solar cells and facilitating the thinning of silicon wafers.