CAREER: Spectroscopic Studies of Interface Structure and Strain in Low-dimensional Semiconductor Heterostructures by Laser-enhanced Nuclear Magnetic Resonance

职业：通过激光增强核磁共振对低维半导体异质结构中的界面结构和应变进行光谱研究

• 批准号: 0239560
• 负责人: Sophia Hayes
• 金额: $ 52.67万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-06-01 至 2008-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0239560&HistoricalAwards=false
• 关键词: CAREER; Spectroscopic; Studies; Interface; Structure

In this NSF-CAREER project, supported by the Experimental Physical Chemistry Program of the Chemistry Division, Hayes will examine the interfaces and defects in semiconductor heterostructures, such as AlGaAs/GaAs quantum wells or thin films of InGaP grown on InP, to obtain atomic-level information about the structure, geometry and the chemical nature of nanostructures present. Combined optically-polarized NMR and optically-detected NMR methods will be used to study the interfacial and defect structures, generally termed "laser-enhanced NMR." Because the information provided by each technique is complementary, the combination of the two types of spectroscopy in a single experiment can provide insights into structure and electronic properties of the material simultaneously.This multidisciplinary research program, through participation in the University's Materials Science initiative, will enhance the infrastructure for research and education. The research component of this project will be integrated with the graduate and undergraduate teaching efforts. Graduate and undergraduate students, as well as postdoctoral research associates will participate in the research and will thereby acquire skills and training for advanced studies or employment in industry, academia, or government laboratories.

在这个由化学部门实验物理化学项目支持的NSF-CAREER项目中，Hayes将研究半导体异质结构中的界面和缺陷，如AlGaAs/GaAs量子阱或生长在InP上的InGaP薄膜，以获得有关纳米结构的结构、几何形状和化学性质的原子级信息。结合光偏振核磁共振和光检测核磁共振方法将用于研究界面和缺陷结构，通常称为“激光增强核磁共振”。由于每种技术提供的信息是互补的，因此在单个实验中结合两种类型的光谱学可以同时提供对材料结构和电子特性的见解。这个多学科研究项目，通过参与大学的材料科学计划，将加强研究和教育的基础设施。该项目的研究部分将与研究生和本科生的教学工作相结合。研究生和本科生以及博士后研究助理将参与研究，从而获得技能和培训，以便在工业，学术界或政府实验室进行高级研究或就业。