Raman Spectroscopy of Carbon-based Molecular Electronic Junctions

俄亥俄州立大学的Richard McCreery教授受到分析和表面化学项目的支持，研究分子隧道结系统的结构和机制。当汞滴接近石墨表面时，探测拴在石墨表面的化合物的单分子薄膜。拉曼光谱是一种原位方法。硝基偶氮苯等分子被用作吸附剂。对该系统的传导和导电开关机理进行了研究。有机层的分子结构如何影响碳基结的电子性能？这项工作与分子电子学在高密度数据存储、分子晶体管、光电探测器、显示技术和化学传感器等应用领域的发展有关。利用分子作为电子元件是纳米技术的一个目标。

Professor Richard McCreery of Ohio State University is supported by the Analytical and Surface Chemistry Program to study the structure and mechanisms of molecular tunneling junction systems. Monomolecular films of a compound tethered to a graphite surface are probed as a mercury drop approaches the surface. Raman spectroscopy is employed in an in-situ manner. Molecules such as nitroazobenzene are utilized as adsorbates. The mechanism of conduction and conductive switching of this system is being investigated. How does the molecular structure of the organic layer affect the electronic properties of carbon based junctions? The work is relevant to the development of molecular electronics for applications such as high density data storage, molecular transistors, photodetectors, display technology and chemical sensors. Using molecules as electronic elements is a goal of nanotechnology.