UNS: Tunable Plasmonic Nanostructures by Atomic Layer Deposition

UNS：通过原子层沉积可调谐等离子体纳米结构

• 批准号: 1511138
• 负责人: Brian Willis
• 金额: $ 30万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-15 至 2020-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1511138&HistoricalAwards=false
• 关键词: UNS; Tunable; Plasmonic; Nanostructures; Atomic

1511138(Willis)Plasmonics is a general term that describes a broad array of research activity to study the interaction of light with noble metal nanostructures. Noble metals are metals that are resistant to corrosion and oxidation in moist air. Ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, and gold are noble metals. The field of plasmonics is growing rapidly due an increasing number of studies on the applications of plasmonic materials. These applications are for their uses in photocatalysis, as biochemical sensors, as photodetectors, and for solar energy harvesting, including harvesting infrared (IR) wavelengths.The central features of plasmonic materials are localized surface plasmon resonances that lead to strong absorption and scattering of electromagnetic radiation by small metal particles. An experimental research program to investigate tunable plasmonic nano structures is planned, with an emphasis on process schemes for electrical connectivity. The central features of plasmonic materials are localized surface plasmon resonances that lead to strong absorption and scattering of visible and near-IR radiation by small noble metal particles. The resonances are sensitive to the size and shape of nanostructures as well as the dielectric properties of the materials and surroundings, and can be tuned throughout the visible/near-IR region. The coupling of optical phenomena and charge transfer processes is one of the exciting new areas of the science of plasmonic materials. In this work, the PI plans to investigate atomic layer deposition of noble metals on Pd nanostructures to tune the optical and electrical properties of electrically conductive nanostructures coupled by nanogaps on the order of a few nanometers. Atomic layer deposition will be used to create electrically coupled plasmonic nanostructures that combine optical and electrical phenomena at the nanoscale. This research should enhance the ability to engineer useful structures at the nanoscale with critical dimensions on the order of 1 nm.The broader impacts encompass STEM educational and outreach activities, including building infrastructure for education through new senior laboratory experiments, starting a new graduate student mentoring program, supporting undergraduate research and participation by underrepresented student populations, and hosting high school students and teachers for summer learning activities.

1511138（威利斯）等离子体是一个通用术语，它描述了一系列广泛的研究活动，以研究光与贵金属纳米结构的相互作用。贵金属是对潮湿空气中耐腐蚀和氧化能力的金属。 ruthenium，阳ium，钯，银，osmium，iridium，platinum和Gold是高贵的金属。由于对等离激元材料的应用的研究越来越多，因此，等离子间的领域正在迅速增长。这些应用是为了在光催化中的用途，作为生化传感器，光电探测器以及太阳能收集，包括收获红外（IR）波长。等离子体材料的主要特征是局部的表面等离子体共振，可导致小型金属颗粒的高吸收和散射电子辐射的强大吸收和散射。计划研究可调节等离子纳米结构的实验研究计划，重点是用于电连通性的过程方案。等离激元材料的主要特征是局部的表面等离子体共振，可通过小贵金属颗粒吸收强烈的吸收和散射近IR辐射。共振对纳米结构的大小和形状以及材料和周围环境的介电特性敏感，并且可以在整个可见/近IR区域进行调整。光学现象和电荷转移过程的耦合是等离激元材料科学的令人兴奋的新领域之一。在这项工作中，PI计划研究PD纳米结构上贵金属的原子层沉积，以调整由纳米胶质在几个纳米仪的顺序上耦合的可导电纳米结构的光学和电性能。原子层沉积将用于创建电气耦合的等离激元纳米结构，这些等离子纳米结构将光学和电现象结合在纳米级。这项研究应增强在纳米级上设计有用的结构的能力，其临界维度为1 nm。更广泛的影响包括STEM教育和外展活动，包括通过新的高级实验室实验建立教育基础架构，启动新的研究生指导计划，从事新的研究生指导计划，以支持未成年人的活动，以培训未成年人的活动，以培训未成年人的活动和教师的学生和教师的教师和教师的教师和教师等级学生和学生的高级学生。