Scanning Tunneling Microscopy of Molecular Conductors

化学部授予范德比尔特的启动奖 该大学支持桑德拉·J·罗森塔尔教授的研究。 的 本研究的主题是时间分辨扫描的发展 隧道显微镜用于研究新型光学器件中的电荷迁移 电子材料。 正在研究的初始材料是 由低聚噻吩衍生物组成的自组装单分子膜。 由不同数目的噻吩单体组成的低聚物， 以及它们形成有序结构的能力 单分子膜取决于用扫描探针探测的链长度 显微镜 低聚噻吩系统是理想的候选者， 结合到分子传输线中，用于演示 皮秒时间分辨和分子空间分辨 时间分辨扫描隧道显微镜的未来。 这项研究是直接研究长期研究计划的关键一步。 观察新材料的结构和功能，提供 定制新材料所需的信息， 设备应用。 设计新型导电材料的能力 为电子工业的发展做出了贡献。

This starter grant award of the Chemistry Division to Vanderbilt University supports the research of Professor Sandra J. Rosenthal. The theme of the research is the development of time-resolved scanning tunneling microscopy for the study of charge migration in novel optical and electronic materials. The initial material being studied is self-assembled monolayers composed of oligothiophene derivatives. Oligomers consisting of different numbers of the thiophene monomer are synthesized and the degree to which their ability to form ordered monolayers depends upon chain length explored with scanning probe microscopy. The oligothiophene systems are ideal candidates to be incorporated into a molecular transmission line to be used to demonstrate simultaneous picosecond time resolution and molecular spatial resolution of a time-resolved scanning tunneling microscope in the future. The research is a crucial step in a long-term research program for direct observation of both structure and function in novel materials, providing the information necessary to tailor new materials designed for specific device applications. The ability to design new conducting materials contributes to advances in the electronics industry.