The(precursor) sodium tungstate was converted into tungstenic acid by cation-exchange.Ethanol and PVA were used as additives to improve the performance of the film.

• 前驱体钨酸钠经阳离子交换得到钨酸溶液,讨论了乙醇和聚乙烯醇(PVA)作为添加剂和热处理温度对薄膜性能的影响。