纳米多孔玻璃制备及其全向减反性能

Porous Nanostructured Glass with Broadband Antireflective Property

相比于传统真空减反射镀膜技术对于样品的形状及大小的高要求和其自身工艺的复杂性，本实验对高温退火后的可分相玻璃采用酸液沥滤法实现玻璃的全向减反性能，方法简便易行，成本低廉，且可实现大规模批量生产。实验结果表明，经酸液沥滤处理后的玻璃上下表面可形成结实的纳米多孔SiO2薄膜，孔径大小为20～40nm，薄膜深度为120～150nm，透过率在不同波长上可提高4．0～7．O％，当光线入射角变化范围为O°～30°时，玻璃的反射率基本保持在1．0％～4．0％，全向减反性能优越。

Compared with the high requirements of samples＇ shape and size and the complexity of the process by traditional vacuum coating technology for generating antireflective films, this experiment showed a simple, inexpensive method for large scale production by using acid solution to leach phase separable glass to achieve broadband antireflective property. It shows that the both surfaces of treated glass turns to be steady porous SiOz nanostructured films, specifically the bore diameter is 20--40nm and the film depth is 120-- 150nm. The transmittance of treated glass can be improved 4.0--7.0% among visible light. When the angle of incident light ranges from 0°to 30°, the reflectivity of treated glass ranges from 1.0% to 4.0%.