Scanning Tunneling Microscopy Probes of Self-Assembled Molecular Layers Physisorbed at Liquid-Solid Interfaces

美国国家科学基金会化学部实验物理化学计划支持哥伦比亚大学化学系George W.Flynn教授在阐明控制在液-固界面物理吸附的手性和非手性分子膜中自组装、分子结构和官能团构象的因素方面所做的工作。一种非常独特的扫描隧道显微镜方法将被用来确定这些界面的化学结构和动力学。研究结果将对自组装界面的设计具有基本的兴趣和实际意义。对这些界面的观察、控制和操纵将对下一代微型光学和电子设备、化学传感器和在纳米尺度上发挥作用的生物医学监测器的发展具有重要意义。本科生、研究生和博士后助理将在纳米科学和纳米技术发展领域的各种物理方法方面获得丰富的经验和技能。

The Experimental Physical Chemistry Program of the Division of Chemistry, National Science Foundation, supports the work of Prof. George W. Flynn, Department of Chemistry, Columbia University, for his work on elucidating the factors that control self-assembly, molecular structure, and functional group conformation in chiral and achiral molecular films physisorbed at liquid-solid interfaces. A rather unique Scanning Tunneling Microscopy approach will be developed and used to determine chemical structure and dynamics at these interfaces.The results of the study will be of fundamental interest and of practical importance in the design of self-assembled interfaces. The observation, control and manipulation of these interfaces will be significant in the development of next generation microscopic optical and electronic devices, chemical sensors, and biomedical monitors that function on the nanoscale dimension. Undergraduate and graduate students, and post-doctoral associates will acquire considerable experience and skills in a variety of physical methods in the developing field of Nanoscience and Nanotechnology.