红外与毫米波学报, 2015, 34 (3): 297, 网络出版: 2015-08-25  

聚合物含量对锆钛酸铅多层膜光学特性的影响

Effect of polymer content on the optical properties of PbZr0.4Ti0.6O3 multilayers
作者单位
中国科学院上海技术物理研究所 红外物理国家重点实验室, 上海 200083
摘要
利用溶胶-凝胶法, 由添加高分子聚合物聚乙烯吡咯烷酮(PVP)的化学溶液制备了锆钛酸铅(PbZr0.4Ti0.6O3, PZT)多层膜, 研究了溶液中聚合物PVP的含量对多层膜光学性能的影响.测试表明, PZT多层膜呈现出由致密层和多孔层交替排布的层状结构, 在可见光区具有单一的高反射率带, 且反射带中心波长在一定范围内随着溶液中PVP浓度的升高向长波方向移动.在PVP的相对摩尔比为x=1.0时, 多层膜反射性能达到最优, 室温绝对反射率高达89%, 反射带宽为44nm.
Abstract
PbZr0.4Ti0.6O3 (PZT) multilayers were prepared by sol-gel method using chemical solutions containing polymer of Polyvinylpyrrolidone (PVP). Effects of PVP content on optical properties of PZT multilayers have been investigated. Tests demonstrated that these multilayers display a layered structure consisting of dense and porous PZT layers and these dense and porous layers are alternately arranged in the layered structure. The reflectance spectra in visible region exhibit a single optical reflection-band with high reflectivity. The central wavelength of the reflection-band shifts to longer wavelength with the increase of PVP concentration within a given polymer content range. The multilayer derived from chemical solution containing PVP with a relative molar ratio of x = 1.0 exhibits the optimal performance with highest optical reflectivity of 89% and largest stop-band width of 44 nm.

丛蕊, 胡古今, 俞国林, 褚君浩, 戴宁. 聚合物含量对锆钛酸铅多层膜光学特性的影响[J]. 红外与毫米波学报, 2015, 34(3): 297. CONG Rui, HU Gu-Jin, YU Guo-Lin, CHU Jun-Hao, DAI Ning. Effect of polymer content on the optical properties of PbZr0.4Ti0.6O3 multilayers[J]. Journal of Infrared and Millimeter Waves, 2015, 34(3): 297.

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