Photoinduced non-equilibrium dynamics in molecular adsorbates: From ensemble to single-molecule experiments (A04)

分子吸附物中的光诱导非平衡动力学：从整体到单分子实验（A04）

• 批准号: 317472698
• 金额: --
• 依托单位: Physikalische Chemie - AG Schlücker
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/317472698?language=en
• 关键词: Photoinduced; non; equilibrium; dynamics; molecular

The aim is to understand and manipulate the non-equilibrium dynamics of the photochromic molecule 2-(2,4-dinitrobenzyl)pyridine (α-DNBP) in the condensed phase with varying solvent environments. We employ ultrafast pump/nonlinear resonance Raman probe spectroscopy since it offers the necessary time-resolution in combination with high chemical specificity. The second aim is to establish surface-enhanced nonlinear Raman spectroscopy for monitoring the non-equilibrium dynamics of only few/single molecules nearby highly reproducible, signal-enhancing plasmonic nanostructures such as ideal dimers of gold nanospheres.

目的是了解和操纵光致变色分子2-（2，4-二硝基苄基）吡啶（α-DNBP）在不同溶剂环境下的凝聚相非平衡动力学。我们采用超快泵浦/非线性共振拉曼探针光谱，因为它提供了必要的时间分辨率与高化学特异性相结合。第二个目的是建立表面增强非线性拉曼光谱，用于监测附近的高度可再现的信号增强等离子体纳米结构，如理想的二聚体的金纳米球的只有少数/单个分子的非平衡动力学。