Studies of Luminescence, Degradation, and Defects in II-VI Laser Diodes by Cathodoluminescence and X-Ray Microdiffraction

9722761嘉吉这GOALI建议地址之间的哥伦比亚大学和飞利浦实验室的合作计划的基本材料科学问题，以了解基本现象和电子空穴对复合，原子位移和缺陷生成的ZnSe基异质结之间的相互作用。在哥伦比亚的研究将涉及依赖于T的CL显微镜，光谱学，和微观结构和应变的X射线微束映射。飞利浦实验室将提供最先进的分子束外延生长的样品和器件，其特征在于电气和光学。联合活动包括与主要研究者和研究生在飞利浦的交流，以及与共同主要研究者T。M.飞利浦的马歇尔在哥伦比亚大学。此外，与Brookhaven NL正在进行的合作将继续与X射线微束工作有关。拟议的研究强调的基本机制和过程的理解沿着与电子/光子材料技术的一些实际方面。该项目由DMR/EM计划和MPS多学科活动办公室（OMA）支持。该项目解决了具有高技术相关性的材料科学主题领域的前沿材料科学研究问题。 该研究将在基本层面上为电子/光子器件和集成电路的重要方面提供基本的材料科学知识。 此外，从研究中获得的基础知识和理解有望通过提供设计和生产改进材料的基本理解和基础，有助于提高先进器件和电路的性能。 该计划的一个重要特点是通过在一个基本和技术上重要的领域对学生进行培训来整合研究和教育。***

9722761 Cargill This GOALI proposal addresses basic materials science issues in a collaborative program between Columbia University and Philips Laboratories to understand fundamental phenomena and interactions between electron-hole pair recombination, atomic displacements and defect generation in ZnSe-based heterostructures. Research at Columbia will involve T-dependent CL microscopy, spectroscopy, and x-ray microbeam mapping of microstructure and strain. Philips Laboratories will provide state-of-the-art MBE-grown samples and devices characterized electrically and optically. The joint activities include staff exchange with the PI and graduate students spending time at Philips, and with the co-PI, T. M. Marshall from Philips spending time at Columbia. Additionally, an on-going collaboration with Brookhaven NL will continue in connection with the x-ray microbeam work. The proposed research emphasizes understanding of fundamental mechanisms and processes along with some the practical aspects of electronic/photonic materials technology. This project is supported by the DMR/EM program and the MPS Office of Multidisciplinary Activities (OMA). %%% The project addresses forefront materials science research issues in a topical area of materials science having high technological relevance. The research will contribute basic materials science knowledge at a fundamental level to important aspects of electronic/photonic devices and integrated circuitry, in general. Additionally, the fundamental knowledge and understanding gained from the research is expected to contribute to improving the performance of advanced devices and circuits by providing a fundamental understanding and a basis for designing and producing improved materials. An important feature of the program is the integration of research and education through the training of students in a fundamentally and technologically significant area. ***