SINGLE MOLECULE ELECTROCHEMISTRY AND SPECTROSCOPY

我们可以捕捉单分子，从氧化还原活性有机分子线到有机金属络合物在纳米缝隙结中，并研究它们的电化学性质和电学性质，一直到单分子水平。这是通过使用扫描隧道显微镜(STM)实现的，它提供了形成单分子结和测量通过分子桥的电流的能力。在这个项目中，我们将捕获分子结中的氧化还原活性分子，并调整它们的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学测量。使用这些方法，我们可以在单个分子水平上检测和研究瞬时带电分子态和分子桥的构型跃迁。

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.