CAREER: Pulsed electrically detected magnetic resonance - Advancing underrepresented groups in science through breakthroughs in materials spin spectroscopy

职业：脉冲电检测磁共振 - 通过材料自旋光谱学的突破，推动科学领域中代表性不足的群体的发展

• 批准号: 0953225
• 负责人: Christoph Boehme
• 金额: $ 60.25万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-06-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0953225&HistoricalAwards=false
• 关键词: CAREER; Pulsed; electrically; detected; magnetic

In this CAREER award, funded by the Chemical Measurement and Imaging program of the Chemistry Division, Professor Boehme of the University of Utah will systematically explore the theoretical and experimental foundations of pulsed electrically detected magnetic resonance (pEDMR) spectroscopy. PEDMR is many orders of magnitude more sensitive than traditional magnetic resonance spectroscopy and is thus well suited for the investigation of the role of spin in microscopic electronic processes in very small and low dimensional semiconductor samples and devices. Magnetic resonance spectroscopy has profoundly impacted physics, chemistry and materials research, as well as medical diagnostics during the past decades. Nevertheless, the traditional detection of magnetic resonance through induction is insensitive when compared to other (e.g. optical) spectroscopies ? a limitation that has impeded applications to electronically improved semiconductor materials. This limitation will be overcome using a direct electrical detection scheme via electric current. The aim of this project is to allow the observation of microscopic processes which are responsible for efficiency limitations in devices like solar cells, light emitting diodes or processes that could be utilized for alternative information processing technologies. Professor Boehme will integrate the development of student recruitment tools with his research through high school student internships and undergraduate research projects, with the goal of increasing minority participation in STEM disciplines.

在这个由化学部化学测量和成像计划资助的职业奖中，犹他州大学的Boehme教授将系统地探索脉冲电检测磁共振（pEDMR）光谱的理论和实验基础。PEDMR的灵敏度比传统的磁共振光谱高出许多数量级，因此非常适合于研究非常小和低维半导体样品和器件中自旋在微观电子过程中的作用。在过去的几十年里，磁共振光谱学对物理、化学和材料研究以及医学诊断产生了深远的影响。然而，传统的检测磁共振通过感应是不敏感的相比，其他（如光学）光谱？这一限制阻碍了电子改进的半导体材料的应用。使用经由电流的直接电检测方案将克服该限制。该项目的目的是允许观察微观过程，这些过程是太阳能电池，发光二极管或可用于替代信息处理技术的过程等设备效率限制的原因。Boehme教授将通过高中学生实习和本科生研究项目将学生招聘工具的开发与他的研究相结合，目标是增加STEM学科的少数民族参与。