POWRE: Far Infrared Frontiers: Low Energy Dynamics of Wide Band Gap Interfaces

本项目的重点是揭示吸附质振动的能量衰减途径和研究宽带隙材料生长过程中的低能量动力学。离子表面分子的远红外反射吸收光谱（Far- iras）将被用于直接测量振动线形。在金属和绝缘衬底上氧化薄膜原位生长过程中的实时远红外光谱测量也包括在研究中。频率相关的电导率和晶格振动将被测量，同时提供电子和形态信息。红外测量将通过传统的表面分析技术得到增强，包括LEED、RHEED、AES和TPD。这是在研究和教育领域妇女专业机会（POWRE）计划下提供的一项研究加强补助金。该研究将在基础水平上贡献新的材料科学知识。

9806055 Hirschmugl This project focuses on unraveling energy decay pathways for adsorbate vibrations and studying low energy dynamics during growth of wide band gap materials. Far infrared reflection absorption spectroscopy (Far-IRAS) of molecules adsorbed at ionic surfaces will be utilized to directly measure vibrational lineshapes. Real-time Far-IRAS measurements during in-situ growth of thin oxide films on metallic and insulating substrates is also included in the study. Frequency-dependent conductivity and lattice vibrations will be measured, providing electronic and morphological information simultaneously. The infrared measurements will be augmented by conventional surface analytical techniques, including LEED, RHEED, AES, and TPD. %%% This is a research enhancement grant made under the Professional Opportunities for Women in Research and Education (POWRE) program. The research will contribute new materials science knowledge at a fundamental level.