A METHOD OF PREPARATION OF A NOVEL SOL FOR DEPOSITION OF ELECTROCHROMIC TUNGSTEN OXIDE THIN FILMS

摘要

40-120 ml of water at ambient temperature, treating the solution so obtained with mineral acid of concentration in the range of 3N-6N to obtain a precipitate, separating the precipitate from the mother liquor by filtration, washing the precipitate with water free from organic and inorganic contaminants till complete removal of metal cation of the tungstate and anion of the acid, •4 dissolving the washed precipitate in a mixture of 20-30% aqueous solution of Q hydrogen peroxide with glacial acetic acid in a ratio in the range of H2O2 O