无机及其聚合物的介电性能研究

项目名称： 无机及其聚合物的介电性能研究

项目编号： No.21271099

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 游效曾

作者单位： 南京大学

项目金额： 80万元

中文摘要： 介电性是物质的重要属性之一，在化学和物理学中其研究内容和机理上日益得到发展。本项目针对目前无机及其聚合物的介电性能，通过分子设计与相应的的合成技术将具有特征结构的官能团和无机纳米粒子引入到新型化合物中。根据不同的应用，研究介电材料和制备方法，特别是无机-有机杂化的材料。重点放在过渡金属配位化合物和无机-有机杂化的硅氧烷聚合物体系。运用动态介电方法，和其他谱学方法相配合，从极化和电荷转移现象的"矢量和规则"、晶体或非晶态物理，以及宏观和微观间的联系，研究材料的结构-介电性能间的关系，进而优化光电无机分子材料的结构设计。介电方法对于无定形和溶液的无机配位聚合物的研究也有特别的优点，对微电子相关的应用性具有一定的指导意义；并期望能够推动介电方法在我国无机化学及相关学科在这方面的研究工作。

中文关键词： 介电性能；分子设计；配位化合物；硅氧烷；微电子材料

英文摘要： As a key intrinsic parameter of materials, dielectric property and its mechanism have received increasing attention in research fields from both chemistry and physics perspective. Molecular design and tailored synthesis method are proposed to be employed in this project according to the dielectric properties of inorganic and poly-inorganic compounds. Functional groups with characteristic structures, as well as nano-particles, are to be introduced to the materials; and preparation of different dielectric materials responding to different applied field will be studied in this project. The research will emphasize on hybrid inorganic-organic materials, such as transition metal coordination compounds and hybrid inorganic-organic polysiloxanes. By employing dynamic dielectric method and other spectroscopic techniques, phenomenas such as polarization, vector sum rule in charge transfer system, crystalline and amorphous physics will be studied to gain knowledge of the relationship between macroscopic and microscopic structures. Therefore, the correlation of the material structure to dynamic properties will be generalized, which helps to prepare inorganic and hybrid inorganic-organic dielectric materials with optimized chemical structures. Dynamic dielectric method is advantageous in studying the amorphous and solution i

英文关键词： dielectric properties；Molecular desiging;；coordination compounds；siloxane；Microelectronics