NIRT: Optical and Electronic Processes in Metal Nanoparticle-Conjugated Organic Materials

本项目的重点是金属纳米粒子上共轭有机生色团的制备和研究。 研究人员将，a）合成有机发色团-金属纳米颗粒系统B）研究稳态和时间分辨吸收和荧光特性，c）确定双光子吸收光谱特性，d）表征电荷传输特性，e）利用扫描隧道显微镜探测表面的电子相互作用。 具体而言，该项目将探测有机发色团和金属颗粒表面等离子体状态之间的电子耦合（由于多极和电子重叠相互作用）。 该项目的更广泛影响将包括生产新型纳米颗粒系统，其在荧光传感，非线性光学和纳米级电子器件（如DNS传感器）中具有潜在应用。 该计划的活动将与工业合作伙伴密切相关，这些合作伙伴也非常专注于创造革命性的材料和训练有素的科学和工程劳动力。 参加该计划的学生将在最先进的研究实验室接受综合跨学科研究培训，这将有助于毕业生在工业和学术机构找到未来的职位。 来自代表性不足群体的学生的经验将有助于建立参与这一科学研究领域的兴趣和信心。该项目涉及创造由有机染料附着在小金属颗粒上组成的新型纳米材料。 这两种组分的相互作用可能会产生新的和有趣的特性，这些特性可应用于生物医学成像、新型眼睛保护材料以及超小型电子器件。 该项目将开发新材料，随后将通过各种敏感的光学和表面实验技术进行研究。 这些实验将帮助我们了解有机染料与小金属颗粒的连接行为。 该NSF-NIRT计划的活动将涉及与工业合作伙伴的合作，这些合作伙伴也对开发和理解可用于电子和光学设备的新材料感兴趣。 参加该计划的学生将在尖端研究实验室和设备制造设施中接受综合的跨学科研究培训。 这种经验将有助于研究生在工业和学术机构的未来职位。 来自代表性不足群体的学生的经验将有助于建立参与这一科学研究领域的兴趣和信心。

The preparation and investigation of conjugated organic chromophores attached to metal nanoparticles is the focus of this NIRT project. The investigators will, a) synthesize organic chromophore-metal nanoparticle systems b) investigate steady-state and time-resolved absorption and fluorescence properties, c) determine two-photon absorption spectroscopic properties d) characterize charge transport properties and e) probe electronic interactions at the surface utilizing scanning tunneling microscopy. Specifically, this project will probe the electronic coupling (due to multipolar and electronic overlap interactions) between the states of the organic-chromophore and the metal particle surface plasmon. The broader impacts of this project will include the production of novel nanoparticle systems with potential applications in fluorescence sensing, nonlinear optics, and nanoscale electronic devices such as DNS sensors. The activities of this program will be closely correlated with industrial partners that are also intensely focused on creating revolutionary materials and better trained scientific and engineering workforce. Students participating in this program will receive integrated interdisciplinary research training in state-of-the-art research laboratories which will help graduates find future positions in industrial and academic institutions. The experience for students from underrepresented groups will help build interest and confidence in participating in this area of scientific research.This project concerns the creation of new nanoscale materials composed of organic dyes attached to small metal particles. The interaction of these two components may give rise to new and interesting properties which may be applied to biomedical imaging, novel eye protection materials, as well as ultra-small electronic devices. The project will develop new materials which will subsequently be investigated by various sensitive optical and surface experimental techniques. These experiments will help us to develop an understanding of the behavior of organic dyes connected to small metal particles. The activities of this NSF-NIRT program will involve collaboration with industrial partners that are also interested in developing and understanding new materials that can be useful for electronic and optical devices. Students participating in this program will receive an integrated interdisciplinary research training in cutting-edge research laboratories and device fabrication facilities. This experience will help graduate students in future positions at industrial and academic institutions. The experience for students from underrepresented groups will help build interest and confidence in participating in this area of scientific research.