Structural Transformations in Irradiated Silicon Germanium Alloys

辐照硅锗合金的结构转变

• 批准号: 9616105
• 负责人: Laurie McNeil
• 金额: $ 14.94万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9616105&HistoricalAwards=false
• 关键词: Structural; Transformations; Irradiated; Silicon; Germanium

9616105 McNeil This research project aims to gain fundamental understanding of an unusual physical transformation in Ge. At very high Kr ion irradiation doses, Ge converts from an amorphous to a highly networked spongy structure. A similar transformation is not observed in Si, or most other materials. The approach is to investigate the transformation phenomena in a Si(1-x)Gex alloy series with x spanning the range of 1 to 0, and also to investigate and characterize the optical properties of the irradiated materials. The project is collaborative between UNC and Argonne National Laboratory, and the research is expected to provide new fundamental information and insights into radiation effects and optical properties of semiconductor materials. %%% The project is multidisciplinary combining materials physics and processing studies with advanced characterization tools and analysis methods to address forefront research issues in a topical area of technological relevance. The research will contribute basic materials science knowledge at a fundamental level to important aspects of processing and fabricating electronic/photonic devices and integrated circuitry. Additionally, the knowledge and understanding gained from this research project is expected to contribute in a general way 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. ***

9616105 McNeil本研究项目旨在获得对Ge中不寻常的物理转变的基本了解。在很高的氪离子辐照剂量，锗转换从一个非晶高度网状海绵状结构。在Si或大多数其他材料中没有观察到类似的转变。研究了Si（1-x）格克斯（x = 1 ~ 0）合金系中的相变现象，并对辐照材料的光学性质进行了研究和表征。该项目是美国国家实验室和阿贡国家实验室之间的合作，该研究有望为半导体材料的辐射效应和光学特性提供新的基础信息和见解。该项目是多学科的，将材料物理和加工研究与先进的表征工具和分析方法相结合，以解决技术相关性主题领域的前沿研究问题。 该研究将在基础层面上为处理和制造电子/光子器件和集成电路的重要方面提供基础材料科学知识。 此外，从该研究项目中获得的知识和理解预计将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，以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。***