Sodium yttrium tungstate film material as well as preparation method and application thereof

The invention belongs to the technical field of the preparation of inorganic photoelectric functional materials, and discloses a sodium yttrium tungstate film material as well as a preparation methodand application thereof. According to the invention, FTO conductive glass is used as a substrate, a tetragonal NaY(WO4)2 film material is prepared by using a layer-by-layer dip-coating method for alternate coating, and the density and crystal growth orientation of the film are effectively improved by the alternate coating of a surfactant and a precursor film layer. The sintering temperature of theprocess ranges from 350 DEG C to 550 DEG C, a good energy-saving effect is achieved, production energy consumption and production cost can be remarkably and greatly reduced, and the application fieldof the film is expanded. 本发明属于无机光电功能材料制备技术领域，公开了一种钨酸钇钠薄膜材料及其制备方法和应用。本发明以FTO导电玻璃为基底，利用层层浸渍提拉法交替镀膜制备了一种四方晶系的NaY(WO4)2薄膜材料，通过表面活性剂与前驱体膜层交替镀膜有效改善膜的致密度及晶体生长取向。本发明工艺烧结温度在350~550°之间，具有较好的节能效果，可以显著、大幅度降低生产能耗和生产成本、拓展薄膜的应用领域。