Ultrafast Dynamics of Photoinduced Switching (A01)

A01项目将超快光谱和理论模拟相结合，以更详细地了解分子光开关的光诱导动力学。继以前在溶液中分离的发色团和具有耦合发色团的模型系统上的工作之后，现在将在与应用直接相关的环境中研究分子开关动力学：胶体微网和薄膜。系统特性的目标变化，如发色团-聚合物附着性、聚合物柔韧性和染料负载，将使我们能够分离自由体积、生色团-发色团耦合和应变对开关机制和产量的影响。预期的结果为合理改进重要的光响应功能系统提供了有价值的见解。

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.