Molecular Plasmonics: Single Molecules, Single Nanoparticles and Scanning Probe Microscopy

分子等离子体学：单分子、单纳米颗粒和扫描探针显微镜

• 批准号: 0911145
• 负责人: Richard Van Duyne
• 金额: $ 59.7万
• 依托单位: Northwestern University
• 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: 2009-08-01 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0911145&HistoricalAwards=false
• 关键词: Molecular; Plasmonics; Single; Molecules; Nanoparticles

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)." The Analytical and Surface Chemistry (ASC) program of the Division of Chemistry supports the research program of Professor Richard P. Van Duyne at Northwestern University. Professor Van Duyne and his coworkers are developing new concepts and experimental tools to study four topics. First, molecular generality of single molecule surface enhanced Raman spectroscopy will be explored. At present single molecule SERS is the only experimental method to chemically identify the structure of single molecules and represents the ultimate limit in analytical sensitivity. Second, the structures of the nanoparticles required for the implementation of single molecule SERS will be obtained using spatially correlated high resolution transmission electron microscopy. Third, the project will explore the use of aluminum as a new plasmonic material for ultraviolet surface-enhanced Raman spectroscopy. Finally, several new experimental methods will be employed to more deeply probe the fundamentals of molecular plasmonics. These include single nanoparticle spectroscopy and tip-enhanced Raman spectroscopy. This project will lead to fundamentally new understanding of the chemistry of single molecules adsorbed on surfaces and will impact many areas of science and technology such as molecular electronics, ultrasensitive bioassays for medical diagnostics, and dye sensitized solar cells. The graduates student and postdoctoral fellow who will work on this project will be trained to become independent and innovative research leaders. Prof. Van Duyne and his coworkers will continue their collaborative research with Dr. Francesca Casadio at the Art Institute of Chicago on the applications of surface enhanced Raman spectroscopy and tip-enhanced Raman spectroscopy to problems in art conservation science.

“这项奖励是根据2009年美国复苏和再投资法案（公法111-5）资助的。”化学系的分析和表面化学（ASC）项目支持西北大学Richard P. Van Duyne教授的研究项目。Van Duyne教授和他的同事们正在开发新的概念和实验工具来研究四个主题。首先，探讨单分子表面增强拉曼光谱的分子普遍性。目前单分子SERS是化学鉴定单分子结构的唯一实验方法，代表了分析灵敏度的极限。其次，利用空间相关的高分辨率透射电子显微镜获得实现单分子SERS所需的纳米颗粒结构。三是探索利用铝作为新型等离子体材料进行紫外表面增强拉曼光谱研究。最后，将采用几种新的实验方法来更深入地探索分子等离子体的基本原理。这些包括单纳米粒子光谱和尖端增强拉曼光谱。该项目将导致对表面吸附的单分子化学的全新理解，并将影响许多科学和技术领域，如分子电子学、用于医学诊断的超灵敏生物测定和染料敏化太阳能电池。参与该项目的研究生和博士后将被培养成为独立创新的研究带头人。Van Duyne教授及其同事将继续与芝加哥艺术学院的Francesca Casadio博士合作研究表面增强拉曼光谱和尖端增强拉曼光谱在艺术保护科学中的应用。