Ultrafast Dynamics of Photoinduced Switching (A01)

项目A01结合了超快光谱和理论模拟，以详细了解分子光开关的光致动力学。经过先前的工作孤立的发色团在溶液中和模型系统与耦合发色团，分子开关动力学现在将在直接相关的应用环境中进行研究：胶体微网和薄膜。有针对性的系统特性，如发色团-聚合物连接，聚合物的灵活性和染料负载的变化将使我们能够隔离自由体积，发色团-发色团耦合和应变对开关机制和产量的影响。预期的结果提供了宝贵的见解，合理的改善重要的光响应功能系统。

Project A01 combines ultrafast spectroscopy and theoretical simulations to understand the light-induced dynamics of molecular photoswitches in some detail. After previous work on isolated chromophores in solution and on model systems with coupled chromophores, the molecular switching dynamics will now be studied in environments directly relevant to applications: colloidal micronetworks and thin films. Targeted variations of system characteristics like chromophore-polymer attachment, polymer flexibility and dye load will allow us to isolate influences of free volume, chromophore-chromophore coupling and effects of strain on switching mechanisms and yields. The expected results provide valuable insights towards rational improvements of important photoresponsive functional systems.