U.S.-Venezuela Cooperative Research: Hybrid Materials: Electron Dynamics in Molecular Nanoassemblies

9803046RatnerThis Americas Program award将资助博士之间的合作研究项目。西北大学的Mark Ratner和委内瑞拉中央大学的Vladimiro Mujica，对金属表面结合的单个分子的行为进行了实验/理论研究。这项研究的目的是试图解决电荷如何在电极和单分子线结构之间静态和动态转移的问题。为了实现这一目标，研究人员将制备混合材料界面，利用静态光谱、显微镜、输运测量、静态电子结构理论和直接计算耗散以及超交换电流来表征它们及其行为。这项工作与新兴的纳米技术有关。多年来，分子电子学一直是物理化学和材料领域的重要研究领域之一，随着扫描探针和原子力显微镜的出现，现在有可能研究纳米和亚纳米长度尺度上的结构和电荷转移。合作者在开展这项研究所需的各个跨学科领域都有经验，并为合作带来互补的技能和兴趣。大多数实验工作和电子结构计算将在西北大学完成，而许多正式开发和许多身体分析将在加拉加斯完成

9803046RatnerThis Americas Program award will fund a cooperative research project between Drs. Mark Ratner, Northwestern University and Vladimiro Mujica, Universidad Central de Venezuela, for an experimental/theoretical investigation into the behavior of individual molecules bonded at metal surfaces. The aim of the research is to try to solve the problem of how charge is transferred, both statically and dynamically, between electrodes and single molecular wire structures. To accomplish this, the researchers will prepare hybrid material interfaces, characterize them and their behavior using static spectroscopy, microscopy, transport measurements, static electronic structure theory and direct computation of the dissipative, as well as the superexchange, currents. The proposed work is of relevance to emerging nanotechnologies. The general area of molecular electronics has been one of substantive interest in physical chemistry and materials for a number of years, and with the advent of scanning probe and atomic force microscopies it is now possible to study both structure and charge transfer on nanometer and subnanometer length scales. The collaborators are experienced in the various cross-disciplinary areas necessary to carry out this research and bring complementary skills and interest to the collaboration. Most of the experimental work and electronic structure calculations will be done at Northwestern, and much of the formal development and many body analysis will be done in Caracas.***