Chemistry of Organic Molecules on (001) Surfaces of Group IV Semiconductor

本研究项目由威斯康星大学麦迪逊分校Robert Hamers教授的实验室进行，主要研究IV族半导体表面的有机功能化，特别是Si、Ge和金刚石的（001）表面。在分析和表面化学项目的支持下，Hamers和他的同事们正在研究各种有机分子与这些半导体（001）表面上的双键二聚体的反应。这是一条用有机覆盖层对这些表面进行修饰的途径，并利用这种化学物质对这些材料进行后续的功能化。这种化学在构建分子电子器件和开发“基因芯片”技术方面的应用是显而易见的。以可控和可复制的方式将有机分子附着在半导体衬底上的能力是本研究计划的重点。如果有机分子附着在这些表面上的可靠途径能够被开发出来，那么有机化学的合成能力和多样性就可以用于这些材料的功能化，用于电子设备制造和生物分析化学。一系列扫描探针方法与超高真空光谱探针相结合，用于表征和了解这种界面化学。

This research project, carried out in the laboratory of Professor Robert Hamers at the University of Wisconsin-Madison, is concerned with the organic functionalization of group IV semiconductor surfaces, specifically the (001) surfaces of Si, Ge, and diamond. With the support of the Analytical and Surface Chemistry Program, Hamers and his coworkers are investigating the reaction of various organic molecules with the double bonded dimer species present on the (001) surfaces of these semiconductors. This is a route to the modification of these surfaces with organic overlayers, and the use of this chemistry for the subsequent functionalization of these materials. Applications of this chemistry to the construction of molecular electronic devices, and the developing "gene chip" technologies are clear.The ability to attach organic molecules to semiconductor substrates in a controlled and reproducible fashion is the focus of this research program. If a reliable route to the attachment of organic molecules to these surfaces can be developed, the synthetic power and diversity of organic chemistry becomes available for the functionalization of these materials for applications in electronic device fabrication and in bioanalytical chemistry. A range of scanning probe methods coupled with ultra high vacuum spectroscopic probes is used to characterize and understand this interfacial chemistry.