Basic Properties of Diamond Coated Refractory Metal Mecroemitters

本项目旨在提高对难熔金属微针尖上cvd生长的金刚石膜的基本性质的理解，包括负电子亲和机制和表面钝化的影响。方法是研究有Cs和Ti、Mo等难熔金属微尖和经渗碳并涂有薄金刚石涂层的难熔金属微尖的CVD金刚石膜的光电阈值。在这项研究中使用的技术包括原子分辨率扫描隧道显微镜。紫外光电子能谱、拉曼能谱、x射线光电子能谱、扫描电子显微镜和透射电子显微镜。该项目涉及与电子和光子学技术相关的材料科学主题领域的基础研究问题。该研究将在基础水平上提供基础材料科学知识，为将金刚石薄膜应用于大面积显示器等设备提供基础。该计划的一个重要特点是通过在具有强技术相关性的研究领域培养学生，将研究和教育相结合。＊＊＊

9705187 Golden This project aims to improve understanding of fundamental properties of CVD-grown diamond films on refractory metal microtips, including the mechanism for negative electron affinity and the effects of surface passivation. The approach is to study the photoelectric threshold of CVD diamond films with and without adsorbates such as Cs and Ti, Mo and other refractory metal microtips, and refractory metal microtips that have been carburized and had thin diamond coatings applied. Techniques to be used in the study include atomic resolution scanning tunneling microscopy,. ultraviolet photoelectron spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. %%% The project addresses basic research issues in a topical area of materials science having technological relevance to electronics and photonics. The research will contribute basic materials science knowledge at a fundamental level to provide a basis for incorporating diamond films into devices such as large area displays. An important feature of the program is the integration of research and education through the training of students in a research area with strong technological relevance. ***