SGER: Fabrication and Optimization of Highly Ordered Assemblies of Metallic Nanowire and Nanocrystal Arrays

SGER：金属纳米线和纳米晶体阵列高度有序组件的制造和优化

• 批准号: 0642217
• 负责人: Regina Ragan
• 金额: $ 5万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-15 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0642217&HistoricalAwards=false
• 关键词: SGER; Fabrication; Optimization; Highly; Ordered

ABSTRACTProposal Number: CTS-0642217Principal Investigator: Regan, ReginaAffiliation: University of California-IrvineProposal Title: SGER: Fabrication and Optimization of Highly Ordered Assemblies of Metallic Nanowire and Nanocrystal Arrays Intellectual Merit:The fabrication of noble metal nanostructures immobile on Si substrates via self-assembly with feature sizes less than 10 nm and more notable inter-particle spacing on the order of nanometers via a self-assembled template is unique to this proposal. This experimental study is combined with ab initio structural calculations of interfaces involved in phase aggregation that leads to nanostructure formation. Theory and experiment are combined in order to optimize structure and to apply these principles to obtain a variety of structures and vary material in the structure. Characterization of optical properties of nanostructures will be addressed to demonstrate the feasibility of using these structures in surface plasmon resonance biological sensors. Metal nanoparticles with diameters much less than the wavelength of light and narrow inter-particle spacing have strong near field coupling due to a local enhancement of the electromagnetic field around these particles. Thus, in order to achieve maximum enhancement to the electromagnetic signal, the inter-particle spacing should be on the order of nanometers. By using self-assembly, the feature size, 8 nm, and inter-particle spacing achievable, ~10 nm, is smaller than that obtained with electron beam lithography and the throughput is much higher.Broader Impacts:The approach proposed uses self-assembly as a low-cost method to fabricate nanostructure arrays composed of noble metal nanocrystals and nanowires. The development and fundamental understanding of fabricating large-areas of uniformly-sized ensembles of noble metal nanocrystals and nanowires and investigating an efficient readout method will foster the emergence of low-cost and highly sensitive biosensing devices in addition to other applications such as transport of electromagnetic energy along metallic nanowires, and catalysis. This proposal will support the training of undergraduate and graduate students in a highly interdisciplinary area of science. Interest and experience in science and engineering will also be fostered via curriculum development, computer simulations and experimental data from this project incorporated in undergraduate and graduate courses.

摘要提案编号：CTS-0642217主要研究者：Regan，Regina附属机构：加州大学欧文分校提案标题：SGER：金属纳米线和纳米晶体阵列的高度有序组装的制造和优化智力优点：通过自组装在Si衬底上固定的贵金属纳米结构的制造，其特征尺寸小于10 nm，并且通过自组装模板在纳米量级上具有更显著的颗粒间间距，这是该提案所独有的。这项实验研究与导致纳米结构形成的相聚集所涉及的界面的从头算结构计算相结合。将理论与实验相结合，以优化结构，并应用这些原则，以获得各种结构和结构中的各种材料。纳米结构光学性质的表征将被解决，以证明在表面等离子体共振生物传感器中使用这些结构的可行性。直径远小于光的波长和窄的颗粒间间距的金属纳米颗粒由于这些颗粒周围的电磁场的局部增强而具有强的近场耦合。因此，为了实现对电磁信号的最大增强，颗粒间间距应该在纳米量级上。通过使用自组装，特征尺寸，8纳米，和可实现的粒子间间距，~10纳米，是小于与电子束光刻获得的和吞吐量是higher.Broader影响：提出的方法使用自组装作为一种低成本的方法来制造由贵金属纳米晶体和纳米线的纳米结构阵列。制造大面积的均匀尺寸的贵金属纳米晶体和纳米线的集合体以及研究有效的读出方法的发展和基本理解将促进低成本和高灵敏度的生物传感装置的出现以及其他应用，例如电磁能沿着金属纳米线的传输和催化。该提案将支持在高度跨学科的科学领域培养本科生和研究生。在科学和工程的兴趣和经验也将通过课程开发，计算机模拟和实验数据从这个项目纳入本科和研究生课程培养。