Macroscopic Electronic and Electrochemical Properties of Networks of Purified SWNTs

纯化单壁碳纳米管网络的宏观电子和电化学特性

• 批准号: 0906564
• 负责人: Marcus Lay
• 金额: $ 56.4万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0906564&HistoricalAwards=false
• 关键词: Macroscopic; Electronic; Electrochemical; Properties; Networks

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."Technical. This project will explore a novel method for deposition of large-scale ordered arrays of single-walled carbon nanotubes (SWNTs). The aim is to enhance current understanding of the properties of nanomaterials by: 1) investigating a mild technique for purification of SWNTs, 2) investigating the electrical applications of SWNT networks, and 3) studying the effect of SWNT density on electrochemical response. The SWNT deposition method involves formation of electrically continuous SWNT arrays from aqueous suspensions. A major advantage is expected since solution deposition processes decouple the growth process (which occurs at ~800C) from the deposition process (which occurs at room temperature). This allows purification of the material to remove residual impurities, as well as the use of heat sensitive substrates, presenting an increased area of potential applications. Non-Technical. The project addresses fundamental research issues in a topical area of electronic/photonic materials science having technological relevance. A major impediment to the incorporation of SWNTs into manufacturable electronic devices is the lack of low-temperature deposition methods for the formation of low-density arrays of aligned SWNTs. This effort provides a route to incorporation of molecular level systems into electronic systems that have direct applications in flexible electronics and optoelectronics. This research will also provide an excel-lent opportunity to teach the fundamental aspects of nanoscience investigations to a broad range of the populace. Integration of teaching and research will involve outreach at the elementary-, high school-, undergraduate- and graduate-level. The PI receives support for teaching and men-toring performed with the NSF-funded Peach State Louis Stokes Alliance for Minority Participation (PSLAMP) program. Further, the PI has recently recruited two African American female graduate students to this university. Research opportunities are extended to undergraduate stu-dents at nearby historically black colleges in Atlanta through the NSF-funded Summer Under-graduate Research Program (SURP) program. Undergraduate and graduate researchers will work together on this project, experiencing and building teamwork skills.

“该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。”本项目将探索单壁碳纳米管（SWNTs）大规模有序阵列沉积的新方法。其目的是通过：1)研究一种温和的碳纳米管净化技术，2)研究碳纳米管网络的电应用，以及3)研究碳纳米管密度对电化学响应的影响，来提高目前对纳米材料性质的理解。单壁碳纳米管沉积方法包括从水悬浮液中形成电连续的单壁碳纳米管阵列。由于溶液沉积过程将生长过程（发生在~800℃）与沉积过程（发生在室温下）分离，因此预计其主要优势。这允许对材料进行净化以去除残留杂质，以及使用热敏基材，从而增加了潜在应用领域。非技术。本项目旨在解决电子/光子材料科学中具有技术相关性的主题领域的基础研究问题。将单壁碳纳米管纳入可制造电子器件的一个主要障碍是缺乏低温沉积方法来形成低密度排列的单壁碳纳米管阵列。这项工作为将分子水平系统整合到电子系统中提供了一条途径，该系统在柔性电子和光电子领域具有直接应用。这项研究也将提供一个极好的机会，向广大民众教授纳米科学研究的基本方面。教学与研究的整合将涉及在小学、高中、本科和研究生阶段的推广。PI获得了由美国国家科学基金会资助的桃州路易斯·斯托克斯少数民族参与联盟（PSLAMP）项目的教学和指导支持。此外，PI最近还为这所大学招收了两名非裔美国女研究生。通过nsf资助的夏季本科生研究计划（SURP）计划，研究机会扩展到亚特兰大附近历史悠久的黑人学院的本科生。本科生和研究生将在这个项目中一起工作，体验和培养团队合作技能。