OP: Collaborative Research: Nanoscale Synthesis, Characterization and Modeling of Rationally Designed Plasmonic Materials and Architectures

OP：合作研究：合理设计的等离子体材料和结构的纳米级合成、表征和建模

• 批准号: 1709275
• 负责人: Philip Rack
• 金额: $ 33.12万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-01 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1709275&HistoricalAwards=false
• 关键词: OP; Collaborative; Research; Nanoscale; Synthesis

Nontechnical Description: This collaborative and interdisciplinary project brings together both experimentalists and theorists to explore advanced optical materials and devices. This is accomplished using new materials processing methods, advanced characterization techniques, and state-of-the-art theoretical/computational models. The materials and devices have practical applications such as improved solar energy conversion, chemical sensors, and faster as well as higher data storage capacity for computing. The project explores new material combinations and architectures to optimize the way different frequencies of light can be harnessed and manipulated. Advanced materials processing methods are developed to create complex two-dimensional and three-dimensional arrangements of these optical materials. One goal of the project is to train both graduate and undergraduate students to function in a collaborative and interdisciplinary environment. To accomplish this, the graduate students work closely with the collaborating institutions which cross-cut several research areas: materials synthesis (materials science and engineering), materials characterization (chemistry), and theory/simulation (chemistry and applied mathematics). Undergraduate students are impacted by the development of a new multi-institutional and interdisciplinary design project. Technical Description: The overarching goal of this activity is to study new plasmonic materials and architectures for advanced optical and metamaterial concepts with a broad spectral tunability across the visible and near-IR. This goal is realized via the execution of three overarching objectives. The first objective comprises a systematic study of the synthesis, characterization, and theory/modeling of Au-Al, Ag-Al binary, and Au-Ag-Al ternary alloys with the goal of correlating the materials nanostructure to the fundamental optical properties and full plasmonic spectrum. The second objective aims to rationally design, synthesize, and characterize innovative 2D plasmonic nanoarchitectures that incorporate multi-material dimer/oligomer systems, templated substrates that induce asymmetric dielectric coupling, and advanced lithographic/focused ion beam nanomachining for pushing the limits of small size/narrow gaps. The third objective seeks understanding of the far- and near-field optical properties of new 3D plasmonic nanoarchitectures synthesized via focused electron beam induced processing. These objectives are accomplished via a highly collaborative and multi-disciplinary approach which brings together distinctive expertise in the areas of thin film and nanoscale synthesis and characterization, optical and electron-beam plasmon spectroscopy, and advanced theory/simulation of optical- and electron-induced localized surface plasmon resonance phenomena. The multidisciplinary program provides a unique learning experience for both undergraduate and graduate student participants. Additionally, a new multi-disciplinary and multi-institutional design project extends this experience to other undergraduate students at all three participating institutions.

非技术描述：这个协作和跨学科项目汇集了实验者和理论家，以探索先进的光学材料和设备。 这是使用新材料处理方法，高级特征技术和最先进的理论/计算模型来完成的。 材料和设备具有实际应用，例如改进的太阳能转换，化学传感器以及更快的计算数据存储能力。 该项目探讨了新的材料组合和体系结构，以优化可以利用和操纵不同光频率的方式。 开发了先进的材料处理方法，以创建这些光学材料的复杂的二维和三维布置。 该项目的目标之一是培训研究生和本科生，以在协作和跨学科的环境中发挥作用。 为此，研究生与跨越几个研究领域的合作机构紧密合作：材料合成（材料科学和工程），材料表征（化学）和理论/仿真（化学和应用数学）。本科生受到新的多机构和跨学科设计项目的影响。 技术描述：这项活动的总体目标是研究新的等离子体材料和架构，用于高级光学和超材料概念，并在可见的和近IR上具有广泛的光谱可调性。通过执行三个总体目标来实现此目标。第一个目标包括对Au-Al，Ag-Al二元和Au-ag-Ag-Al三元合金的合成，表征和理论/建模的系统研究，目的是将材料纳米结构与基本光学特性和完整特性相关联等离子光谱。第二个目标旨在合理设计，合成和表征创新的2D等离激元纳米结构，这些纳米结构结合了多物质二聚体/低聚物系统，模板的底物，这些模板底物诱导不对称的介电介电介质耦合以及高级光刻/焦点/焦点束束以推动小尺寸/小尺寸的限制的限制狭窄的间隙。第三个目标寻求了解通过聚焦电子束诱导的加工合成的新3D等离子体纳米结构的远场和近场光学特性。这些目标是通过高度协作和多学科的方法来实现的，该方法在薄膜和纳米级合成和表征，光学和电子束等离子体光谱以及光学和电子诱导的高级理论/模拟的领域中汇集了独特的专业知识局部表面等离子体共振现象。 多学科课程为本科和研究生参与者提供了独特的学习体验。此外，一个新的多学科和多机构设计项目将这一经验扩展到了所有三个参与机构的其他本科生。

项目成果

Correlating the optical property evolution in the Au-Ni binary thin films: From metastable solid solution to phase separated alloy

关联 Au-Ni 二元薄膜的光学特性演变：从亚稳态固溶体到相分离合金

• DOI: 10.1016/j.jallcom.2019.04.207
• 发表时间: 2019
• 期刊: Journal of Alloys and Compounds
• 影响因子: 6.2
• 作者: Collette, Robyn;Wu, Yueying;Rack, Philip D.
• 通讯作者: Rack, Philip D.

Visualizing Electric and Magnetic Field Coupling in Au-Nanorod Trimer Structures via Stimulated Electron Energy Gain and Cathodoluminescence Spectroscopy: Implications for Meta-Atom Imaging

• DOI: 10.1021/acsanm.1c03171
• 发表时间: 2022-02
• 期刊: ACS Applied Nano Materials
• 影响因子: 5.9
• 作者: David A. Garfinkel;V. Iyer;Robyn Seils;Grace Pakeltis;Marc R. Bourgeois;A. Rossi;Clay Klein;B. Lawrie;D. Masiello;P. Rack

Focused Electron Beam Induced Deposition Synthesis of 3D Photonic and Magnetic Nanoresonators

• DOI: 10.1021/acsanm.9b02182
• 发表时间: 2019-12-01
• 期刊: ACS APPLIED NANO MATERIALS
• 影响因子: 5.9
• 作者: Pakeltis, Grace;Hu, Zhongwei;Rack, Philip D.
• 通讯作者: Rack, Philip D.

Infrared plasmonics: STEM-EELS characterization of Fabry-Pérot resonance damping in gold nanowires

红外等离子体激元：金纳米线中 Fabry-Pérot 共振阻尼的 STEM-EELS 表征

• DOI: 10.1103/physrevb.101.085409
• 发表时间: 2020
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Wu, Yueying;Hu, Zhongwei;Kong, Xiang-Tian;Idrobo, Juan Carlos;Nixon, Austin G.;Rack, Philip D.;Masiello, David J.;Camden, Jon P.
• 通讯作者: Camden, Jon P.

Exploring the composition, phase separation and structure of AgFe alloys for magneto-optical applications

• DOI: 10.1016/j.mseb.2021.115044
• 发表时间: 2021-01-18
• 期刊: MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
• 影响因子: 3.6
• 作者: Boldman, Walker L.;Garfinkel, David A.;Rack, Philip D.
• 通讯作者: Rack, Philip D.