CAREER: Synthesis, Surface Functionalization and Charge Carrier Injection in 1D Nanostructures

职业：一维纳米结构的合成、表面功能化和载流子注入

• 批准号: 0348585
• 负责人: Moonsub Shim
• 金额: $ 69.15万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-03-01 至 2010-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0348585&HistoricalAwards=false
• 关键词: CAREER; Synthesis; Surface; Functionalization; Charge

This CAREER project aims to elucidate intentionally and unintentionally introduced chemical groups' effects on the electronic properties of carbon nanotubes. In particular, effects of oxygen adsorption and chemical oxidation on charge carrier injection and photo-induced processes will be investigated. Variations in synthesis and fabrication procedures to be developed for these studies will be utilized in creating surface modifications to control optical and electrical properties and to create organized nanostructures of various chemical compositions. Expected outcomes include insights into chemical reactivity and electronic properties of nanotubes, and fundamental materials science knowledge and insights into relatively unexplored areas of optoelectronics and photochemistry of carbon nanotubes. Understanding how electronic properties are affected by surface functional groups is expected to be useful in rational design of organized nanostructures and developing nanotube-based sensor technology. Synthetic efforts to control chemical compo-sition and electronic properties may also lead to new nanoscale materials.%%%The project addresses fundamental research issues in electronic materials science having techno-logical relevance. The educational program will enrich undergraduate curricula and research opportunities. Improvement of existing topics and introduction of new topics for courses on introductory materials science and engineering and nanoscience will be carried out. By developing a new online version of an introductory materials science and engineering course, which will be available to students at Clark Atlanta University and other minority-serving institutions, en-hanced course availability for students of underrepresented groups will be provided. Research opportunities created for undergraduate students at the PI's laboratory will directly integrate research into the educational process. The PI's graduate students will participate as teaching assistants for the on-line course and as research mentors providing them with important mentoring experiences and awareness of diversity issues. Research and educational collaborations with faculty at Clark Atlanta will promote diversity and interaction between institutions. The educational program outlined here will be an integral part of a partnership between the PI's department at UIUC and Clark Atlanta University and will create infrastructure and resources to enhance education and research. Multifaceted challenges to be directly tackled here will provide ample educational opportunities needed especially for researchers in emerging cross-disciplinary fields. ***

本项目旨在阐明有意和无意引入的化学基团对碳纳米管电子特性的影响。特别是，氧吸附和化学氧化对载流子注入和光诱导过程的影响将被研究。为这些研究开发的合成和制造过程的变化将用于创建表面修饰，以控制光学和电学性质，并创建各种化学成分的有组织的纳米结构。预期的结果包括对纳米管的化学反应性和电子性质的见解，以及对碳纳米管的光电子学和光化学相对未开发领域的基础材料科学知识和见解。了解表面官能团对电子性质的影响将有助于合理设计有组织的纳米结构和开发基于纳米管的传感器技术。控制化学成分和电子性质的合成努力也可能导致新的纳米级材料。该项目涉及具有技术相关性的电子材料科学基础研究问题。该教育计划将丰富本科课程和研究机会。材料科学与工程与纳米科学导论课程将对现有主题进行改进，并引入新的主题。通过开发一个新的材料科学与工程入门课程的在线版本，克拉克亚特兰大大学和其他少数族裔服务机构的学生将可以使用，这将为代表性不足的群体的学生提供更多的课程。在PI实验室为本科生创造的研究机会将直接将研究融入教育过程。PI的研究生将作为在线课程的助教和研究导师参与，为他们提供重要的指导经验和对多样性问题的认识。与克拉克亚特兰大学院的研究和教育合作将促进机构之间的多样性和互动。这里概述的教育计划将是UIUC的PI部门和克拉克亚特兰大大学合作伙伴关系的一个组成部分，并将创建基础设施和资源，以加强教育和研究。这里将直接解决多方面的挑战，为新兴跨学科领域的研究人员提供充足的教育机会。＊＊＊