飞秒激光作用下强双光子吸收金属配位聚合物的组装及光物理性质

项目名称： 飞秒激光作用下强双光子吸收金属配位聚合物的组装及光物理性质

项目编号： No.21271004

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： 田玉鹏

作者单位： 安徽大学

项目金额： 78万元

中文摘要： 发展合成新方法，导向制备新材料，在当代高科技材料领域占有重要地位。本项目利用飞秒激光热效应小，利用双光子吸收材料能吸收低能量光子，穿透力强，有极高的空间分辨力等优点，以强双光子吸收金属配合物为单体，在飞秒激光作用下实现自聚合组装金属配位聚合物，制作微纳结构新材料。项目首先设计合成刚柔相济、效应协同的双光子吸收小分子有机配体，选择不同系列的金属离子，调节飞秒激光的波长、能量和频率，制备新型强双光子吸收微纳金属簇、配合物及其配位聚合物微纳结构材料；然后，利用时间分辨荧光光谱、可调谐超快速激光光谱等先进技术，结合理论计算，系统研究材料内部各基元之间轨道匹配与电子转移机制、能量传递和双光子增强效应等光物理特性，探明构效关系。建立飞秒激光作用下双光子吸收金属配合物材料导向制备的新方法，探索所得材料在三维微细加工、功能微器件、生物显影和探针方面的应用，本项目研究将在双光子吸收材料领域取得原创性成果。

中文关键词： 飞秒激光技术；强双光子吸收；金属配位化合物；配位聚合物；光物理性质

英文摘要： Both developing new synthetic method and directed preparation of novel materials play a significant role in the field of modern high-technologies. Femtosecond laser has very low heat effect. Two-photon absorption materals can absorb low-energy photons with strong penetrability and highest spatial resolution. Based on the above considerations, we propose a novel strategy to prepare micro-nano strcuctured hybrid materials via two-photon initiated auto-polymerization process, in which metal-coordination complexes bearing strong two-photon absorption as monomer for polymerization with the aid of femtosecond laser. Firstly, small organic molecular ligands with both features of rigidity and flexibility, bearing synergistic effect, will be designed and synthesized, which can react with different series of metal ions to prepare the micro-, nano-metal clusters, metal coordiantion compounds, and coordination polymer micro-nano strcuctured materials. Secondly, the photophysical properties of the materials will be studied systematically to ascertain the relationships between the structures and properties with the aid of theroretical calculation and modern advanced determiantion technologies. These structure-effect studies include how to match the orbitals between different units in molecule, the electron transfer and energy

英文关键词： Femtosecond laser technology；strong 2-photon absorption；metal complexes；coordination compound polymers；photophysical properties