Nanostructure Synthesis at the Liquid-Substrate Interface: A New Strategy for Obtaining Plasmonic and Chemically Active Surfaces

液体-基质界面纳米结构合成:获得等离激元和化学活性表面的新策略

基本信息

  • 批准号:
    1707593
  • 负责人:
  • 金额:
    $ 32.93万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2016
  • 资助国家:
    美国
  • 起止时间:
    2016-07-01 至 2019-07-31
  • 项目状态:
    已结题

项目摘要

Non-technical AbstractThe key enablers for transformative nanotechnologies are breakthroughs in both the synthesis of nanomaterials and an understanding of the chemistry and physics which guides their formation. Applications typically require that the nanomaterials be suspended in liquids or immobilized on planar substrates such as glass or silicon. While substrate-based nanostructure synthesis techniques have undeniably given rise to an impressive list of technologically relevant nanomaterials, the scope and scale of this success is dwarfed by the many accomplishments of liquid-based syntheses. With financial support from both the Solid State and Materials Chemistry program and the Electronic and Photonic Materials program in the Division of Materials Research, the research project aims to remedy this disparity through a new synthetic strategy reliant on forming nanostructures on substrates while immersed in a liquid medium. If proven successful, the approach will allow the solution-based chemistry which has proved so successful to be practiced directly on substrates and, in doing so, establish the science needed to support applications in sensing, photovoltaics and catalysis. Research activities are being integrated with undergraduate education through the supervision of summer undergraduate research internships. Outreach initiatives are being directed toward the matriculation of women into the Engineering profession.Technical AbstractThis research project seeks to determine whether synthetic protocols reliant on seed-mediated colloidal chemistry are adaptable to a substrate-based platform reliant on substrate-immobilized templates. The overriding goal is to define the chemical controls and mechanistic framework needed to form organized surfaces of noble metal nanostructures and then establish their technological relevance by demonstrating the functionalities of the plasmonic and chemically active surfaces formed. Three thrust areas advancing additive, subtractive and multistage template-assisted growth modes, which are reliant on heterogeneous nucleation and/or galvanic replacement processes, are being used to isolate the exact roles played by the substrate, reaction kinetics, pH, template material and template surface modifications in determining the reaction product. Being targeted are synthetic protocols able to define periodic arrays of: (i) core-shell structures with advanced functionalities derived from the integration of materials with dissimilar physical and chemical properties into a single nanostructure architecture, (ii) caged nanostructures offering intense plasmonic near-fields and tunable spacings between the nanostructure and its cage and (iii) substrate-based nanoframes written into patterns with predetermined layouts. These synthetic trials, combined with simulations and the use of characterization techniques which are unique to the substrate-based platform, are providing the means to form intricate nanostructures whose shape and composition are engineered to realize a desired response.
非技术摘要变革性纳米技术的关键推动因素是在纳米材料合成方面的突破,以及对指导纳米材料形成的化学和物理的理解。应用通常要求纳米材料悬浮在液体中或固定在玻璃或硅等平面衬底上。虽然基于衬底的纳米结构合成技术已经产生了一系列令人印象深刻的技术相关纳米材料,但与基于液体的合成的许多成就相比,这种成功的范围和规模相形见绌。在材料研究部固态和材料化学计划以及电子和光子材料计划的资助下,该研究项目旨在通过一种新的合成策略来弥补这一差距,该合成策略依赖于在液体介质中在衬底上形成纳米结构。如果被证明是成功的,这种方法将允许已被证明如此成功的基于溶液的化学直接在基质上实践,并通过这样做,建立支持传感、光伏和催化应用所需的科学。通过指导暑期本科生科研实习,科研活动正在与本科教育相结合。这项研究项目旨在确定依赖于种子介导的胶体化学的合成方案是否适用于依赖于底物固定模板的底物平台。首要目标是确定形成贵金属纳米结构有序表面所需的化学控制和机械框架,然后通过展示形成的等离子体和化学活性表面的功能来确定它们的技术相关性。依赖于异相成核和/或原电池置换过程的三个推进相加、相减和多阶段模板辅助生长模式的推力区被用来分离底物、反应动力学、pH、模板材料和模板表面修饰在确定反应产物中所起的确切作用。目标是能够定义周期性阵列的合成协议:(I)具有先进功能的核壳结构,其源于将具有不同物理化学性质的材料集成到单一纳米结构体系中;(Ii)笼式纳米结构,其提供强烈的等离子体近场和在纳米结构及其笼子之间的可调间距;以及(Iii)写入具有预定布局的图案的基于衬底的纳米帧。这些合成试验,结合模拟和使用基片平台独有的表征技术,提供了形成复杂纳米结构的手段,其形状和组成经过设计以实现所需的响应。

项目成果

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Svetlana Neretina其他文献

Philosophy of culture before and after October
  • DOI:
    10.1007/bf01074735
  • 发表时间:
    1994-09-01
  • 期刊:
  • 影响因子:
    0.500
  • 作者:
    Svetlana Neretina
  • 通讯作者:
    Svetlana Neretina

Svetlana Neretina的其他文献

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{{ truncateString('Svetlana Neretina', 18)}}的其他基金

Lithography-Free Manufacturing of Metal Structures Separated by Nanogaps
纳米间隙分隔金属结构的无光刻制造
  • 批准号:
    2207664
  • 财政年份:
    2022
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Standard Grant
Tailoring the Nanophotonic and Nanoelectronic Properties of Nanometals using Oxide-Directed Syntheses
使用氧化物定向合成定制纳米金属的纳米光子和纳米电子特性
  • 批准号:
    2107728
  • 财政年份:
    2021
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Standard Grant
Single-Crystal Nanostructures with Oxide Claddings for Durable Refractory Plasmonics
用于耐用耐火等离子体的具有氧化物包层的单晶纳米结构
  • 批准号:
    1911991
  • 财政年份:
    2019
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Standard Grant
Transforming Noble Metal Nanostructure Synthesis Using Unconventional Synthetic Levers
使用非常规合成杠杆转变贵金属纳米结构合成
  • 批准号:
    1803917
  • 财政年份:
    2018
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Continuing Grant
New Nanomanufacturing Techniques for the Fabrication of Plasmonic Surfaces for Photovoltaic, Catalytic and Sensing Applications
用于光伏、催化和传感应用等离子表面制造的新型纳米制造技术
  • 批准号:
    1707595
  • 财政年份:
    2016
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Standard Grant
Nanostructure Synthesis at the Liquid-Substrate Interface: A New Strategy for Obtaining Plasmonic and Chemically Active Surfaces
液体-基质界面纳米结构合成:获得等离激元和化学活性表面的新策略
  • 批准号:
    1505114
  • 财政年份:
    2015
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Standard Grant
New Nanomanufacturing Techniques for the Fabrication of Plasmonic Surfaces for Photovoltaic, Catalytic and Sensing Applications
用于光伏、催化和传感应用等离子表面制造的新型纳米制造技术
  • 批准号:
    1536483
  • 财政年份:
    2015
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Standard Grant
CAREER: Group II-VI Semiconductor Vapor Phase Epitaxy Guided by Kinetically Active Surface Agents
职业:动力学活性表面剂引导的 II-VI 族半导体气相外延
  • 批准号:
    1053416
  • 财政年份:
    2011
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Continuing Grant
NUE: A Sustainable Urban Environment Advanced by Engineers Empowered with Nanotechnology
NUE:由纳米技术赋能的工程师推动的可持续城市环境
  • 批准号:
    1042071
  • 财政年份:
    2010
  • 资助金额:
    $ 32.93万
  • 项目类别:
    Standard Grant

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新型滤波器综合技术-直接综合技术(Direct synthesis Technique)的研究及应用
  • 批准号:
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