Effects of Surface Structure on Ordering in III/V Systems

9704576 Stringfellow该项目致力于通过金属有机化学气相沉积（MOCVD）生长III-V族材料的基础研究问题，MOCVD生长过程的原位和非原位原子尺度表征，其科学目标是了解MOCVD晶体生长过程中的基本化学和物理过程以及有序化的基本机制。 该方法结合了表面科学光谱和显微技术，以测量结构，化学和表面过程中的一个国家的最先进的MOCVD反应器。 该项目强调与表面特征，如重建和步骤订购。 该项目解决了材料科学领域的前沿研究问题，与微电子学和光子学具有高度的技术相关性。 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和材料组合的基本理解和基础，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。***

9704576 Stringfellow This project addresses fundamental research issues in the growth of III-V materials by metallo-organic chemical vapor deposition(MOCVD), in-situ and ex-situ atomic-scale characterization of the MOCVD growth process, with the scientific goal to understand the basic chemical and physical processes and the fundamental mechanism of ordering during crystal growth by MOCVD. The approach combines surface science spectroscopic and microscopic techniques to measure structure, chemistry, and surface processes within a state-of-the-art MOCVD reactor. The project emphasizes relating surface features such as reconstruction and steps to ordering. %%% The project addresses forefront research issues in a topical area of materials science having high technological relevance to microelectronics and photonics. 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, and materials combinations. 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. ***