Formula of single-crystal silicon texturing additive containing polysaccharide and alcohol

The invention relates to an additive of a single-crystal silicon texturing liquid. The components of the additive are a polysaccharide, an alcohol, an organic acid sodium salt, sodium silicate and deionized water, wherein the polysaccharide is one or a mixture of more of water-soluble chitin, polyfructose, water-soluble starch, beta-cyclodextrin, and dextrin, and a weight ratio of the polysaccharide to water is 0.1-1.0:100; the alcohol is a lower alcohol, and is one or a mixture of more of n-propanol, 1,2-propanediol, n-butanol, 1,2-butanediol and tert-butanol, and a weight ratio of the alcohol to water is 1.0-3.0:100; the organic acid sodium salt is one or a mixture of more of sodium acetate, sodium formate, sodium propionate, sodium benzoate, and sodium phenylacetate, and a weight ratioof the organic aicd sodium salt to water is 0.1-1.0:100; and a weight ratio of sodium silicate to water is 0.1-1.0:100. A formula of a single-crystal silicon surface texturing agent is as follows: 30.0-50.0 mL of a NaOH solut