Scanning tunneling microscopy of temperature dependent molecular processes at the solution-solid interface

华盛顿州立大学的克里·W·希普斯教授在化学系化学测量和成像(CMI)计划的支持下，开发了一种温度控制的样品室，便于在固液界面进行变温STM测量。新开发的STM装置将用于研究几个基本的表面科学问题，包括双分子物理吸附的结构和形成动力学的温度依赖性，共价连接的单分子膜中相变的温度依赖性，预制的有机附着层的化学转化的机理和动力学，以及氢键在弱结合自组装结构中的作用。能够看到分子在不同温度下表面的有序和重新排序将显著影响我们对这些基本化学过程的理解，这些过程在许多领域都非常重要，包括化学催化、传感器开发、太阳能电池和生物系统中的自组装。学生将接受尖端研究方法的培训，并将利用西德克萨斯州立大学的推广计划来帮助拉美裔和美洲原住民学生熟悉科学和数学。

Professor Kerry W. Hipps of Washington State University is supported by the Chemical Measurement and Imaging (CMI) Program in the Division of Chemistry to develop a temperature-controlled sample chamber which facilitates variable-temperature STM measurements at the solid liquid interface. The newly developed STM facility will be used to study several basic surface science problems, including the temperature dependence of the structures and formation kinetics of bimolecular physical adsorbates, the temperature dependence of phase transformations in covalently attached monolayers, the mechanisms and kinetics of chemical transformations of preformed organic adlayers, and the role of hydrogen bonding in weakly bound self-assembled structures. The ability to see the ordering and re-ordering of molecules on a surface at different temperatures will significantly impact our understanding of these elementary chemical processes, which are of great importance in many fields, including chemical catalysis, sensor development, solar cells and self-assembly in biological systems. Students will be trained in cutting edge research methods, and WSU outreach programs will be exploited to help Hispanic and Native American students become acquainted with science and math.