金属/陶瓷多层带隙材料界面特性及对光学性能的影响

项目名称： 金属/陶瓷多层带隙材料界面特性及对光学性能的影响

项目编号： No.50874079

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 电工技术

项目作者： 韩培德

作者单位： 太原理工大学

项目金额： 37万元

中文摘要： 可见光波段的光子晶体，其周期尺度在纳米级，尤其纳米金属膜的引入可起到宽带、增透的作用，而目前来看有关金属插层以及纳米薄膜间界面原子互扩散等对光学特性的影响规律和机理尚少有文献报道。本项目设计了一种由陶瓷矿物材料、金属膜构建的可见光波段多层膜带隙新材料，采用理论和实验相结合的方法，系统研究了陶瓷/金属层间界面原子互扩散、微观结构、渐变折射率等对光学性能的影响规律及物理机制。具体内容包括：理论上采用转置矩阵法设计由高、低介电陶瓷矿物材料构建的多层膜带隙材料，引入纳米金属层优化带隙结构；制备金属/陶瓷多层膜结构；研究界面原子互扩散、渐变折射率等不同界面结构对多层膜宏观光学性能的影响规律和机制。通过研究确定了界面结构参数对带隙特性的影响，并探讨了多层膜带隙材料在LED、光催化等领域的可能应用。

中文关键词： 陶瓷多层膜；金属薄膜；界面特性；光学性能；渐变折射率

英文摘要： Photonic crystals are structures with periodically modulated dielectric constants which the lattice constant reaches nano-scale in visible light. In particular, the introduction of nano-metal layers can play broadband antireflection effect. Because, the multiple interfaces have an important role on this behaviour, influencing the optical properties of the system. In this project, the optical properties, microstructure and graded-index of multilayer bandgap materials composed of ceramic material and metal layers are studied using a combined theoretical and experimental method. Topics include: a multilayers bandgap materials are designed by inserting a metal film sandwich structure into multilayer structures using the transfer matrix method. The metal / ceramic multilayer structures are prepared using magnetron sputtering. The effects of the diffusion, graded-index and interfacial roughness on the optical properties and bandgap structures in the multilayer with metal layer was studied. The objective of this study is to examine the interface structure, optical properties. These results may pave the way for studying LED and Photocatalytic.

英文关键词： Ceramic multilayer; Metal film; Interface features; Optical properties; graded-index