SINGLE MOLECULE ELECTROCHEMISTRY AND SPECTROSCOPY

单分子电化学和光谱学

• 批准号: 2599507
• 金额: --
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2599507
• 关键词: SINGLE; MOLECULE; ELECTROCHEMISTRY; SPECTROSCOPY

We can capture single molecules, ranging from redox active organic molecular wires to organometallic complexes in nano-gap junctions and study their electrochemical and electrical properties down to the single molecule level. This is achieved by using a scanning tunnelling microscope (STM) which provides the ability to form single molecule junctions and to measure the current flow through the molecular bridge. In this project we will be capturing redox active molecules within molecular junctions and tuning their redox potential to achieve different redox states and studying any changes in conductance. As well as this, we will be looking at fast time-resolved electrical measurements of the dynamics in single-molecule junctions and spectroscopy. Using these methods, we can detect, and study transiently charged molecular states at the singular molecule level and configurational transitions of molecular bridges.

我们可以捕获单分子，从氧化还原活性有机分子线到纳米间隙连接中的有机金属络合物，并研究它们的电化学和电学特性直至单分子水平。这是通过使用扫描隧道显微镜 (STM) 来实现的，该显微镜能够形成单分子结并测量流经分子桥的电流。在这个项目中，我们将捕获分子连接内的氧化还原活性分子并调整其氧化还原电位以实现不同的氧化还原状态并研究电导的任何变化。除此之外，我们还将研究单分子结和光谱学中动力学的快速时间分辨电测量。使用这些方法，我们可以检测和研究奇异分子水平上的瞬态带电分子状态和分子桥的构型转变。