在太阳能电池生产中,有两种电沉积硅的方法可以采用。第一种方法是把多晶硅直接电沉积到可以重复使用的衬底或是低成本衬底上。硅原料为氟硅酸钾(K_2SiF_6),这是肥料生产中的一种低成本副产品。K_2SiF_6溶于750℃的氟化钾/氟化锂熔液中,通以直流电,在阴极上沉积出硅。 银和石墨作为衬底材料。沉积电流密度为10— In solar cell production, there are two methods of electrodepositing silicon that can be used. The first method is to directly deposit polycrystalline silicon onto reusable substrates or low cost substrates. The silicon feedstock is potassium fluorosilicate (K 2 SiF 6), a low-cost by-product of fertilizer production. K_2SiF_6 is dissolved in a potassium fluoride / lithium fluoride melt at 750 ° C and DC is applied to deposit silicon on the cathode. Silver and graphite as backing material. Deposition current density of 10-