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

基本信息

批准号：
2107728
负责人：
Svetlana Neretina
金额：
$ 45万
依托单位：
University of Notre Dame
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-09-01 至 2024-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2107728&HistoricalAwards=false
关键词：
Tailoring Nanophotonic Nanoelectronic Properties Nanometals

项目摘要

With the support of the Macromolecular, Supramolecular, and Nanochemistry Program in the Division of Chemistry, Dr. Svetlana Neretina of the University of Notre Dame will investigate how oxides can be used to control the growth of metal nanoparticles on substrates with spatial registration. Improvements in the understanding of metal nanoparticle growth mechanisms are expected to result in new synthetic strategies for nanostructure templating that could be exploited for applications in active plasmonics, nanoelectronics, and chiral plasmonics. Dr. Neretina is actively involved in the Building Bridges Mentoring Program and the Advancing Women Leaders Program as well several outreach initiatives that focus on the development of in-lab high school research projects. These activities open up opportunities for Dr. Neretina and her group to actively engage students in areas that are not typically covered in standard curricula.This research involves the advancement of a liquid-state seed-mediated chemistry for the syntheses of on-chip metal nanostructures that are responsive to the synthetic controls imposed by an impinging oxide. Oxides that steer horizontal Au nanowire growth trajectories along deterministic pathways that self-terminate upon an encounter with an electrode, confine plasmonic nanostructures within liquid-filled oxide capsules where their resulting mobility makes them responsive to externally applied stimuli, and selectively react in liquid media are exploited. This approach builds on traditional chemical controls that are accessible through colloidal syntheses and physical controls that are obtainable when a growing metal encounters a chemically inert oxide barrier that is firmly affixed to the substrate surface. By exploiting the synthetic inactivity and passive behavior of oxides to impose steric barriers that act in opposition to or frustrate the natural tendencies associated with nanometal syntheses, the research team seeks to produce reaction products that are typically unobtainable. The work will leverage existing capabilities stemming from a synthetic strategy in which seed-mediated colloidal growth modes are practiced on periodic arrays of substrate immobilized seeds. Overall, this research seeks to develop oxide-directed solution-based chemistry that targets the formation of organized surfaces of nanomaterials with tailored nanoelectronic and nanophotonic properties. Reduction to practice of such an approach to constructing organized surfaces with tailored properties would likely have broad scientific impact.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在化学司的大分子，超分子和纳米化学计划的支持下，巴黎圣母院大学的Svetlana Neretina博士将研究如何使用氧化物来控制具有空间注册的底物上金属纳米颗粒的生长。预计对金属纳米颗粒生长机制的理解的改善有望为纳米结构的新合成策略提供模板的新合成策略，这些策略可以用于活性等离子体，纳米电子和手性等离子体体体中的应用。 Neretina博士积极参与建筑桥梁指导计划和前进的女子领导计划，以及一些关注LAB INB High School研究项目发展的宣传计划。这些活动为Neretina博士及其小组提供了积极吸引学生参与通常不受标准课程的领域的机会。这项研究涉及液态种子介导的化学促进芯片金属纳米结构合成的化学反应，这些化学措施响应于芯片金属纳米结构，这些化学措施响应于构成氧化物所构成的合成控制。沿确定性途径的水平Au纳米线生长轨迹引导水平的氧化物，这些途径在与电极相遇时自我终止，在液体填充的氧化物胶囊内的等离激元纳米结构，使它们产生的迁移率使它们对外部施加的刺激有响应，并在液态培养基中选择性地反应。这种方法建立在传统的化学控制基础上，这些化学控制可通过胶体合成和物理控制访问，当增长的金属遇到化学惰性氧化物屏障时，这些胶体合成和物理控制可获得。通过利用氧化物的合成不活跃和被动行为来施加对反对或挫败与纳米合成相关的自然趋势的空间屏障，研究小组试图产生通常无法获得的反应产品。这项工作将利用综合策略的现有能力，在该策略中，在底物固定种子的定期阵列上实行种子介导的胶体生长模式。总体而言，这项研究旨在开发基于氧化溶液的化学性质，以靶向具有量身定制的纳米电信和纳米光性特性的纳米材料的有组织表面。减少了这种用量身定制的物业来构建有组织的表面的方法的实践，这可能会产生广泛的科学影响。该奖项反映了NSF的法定任务，并且使用基金会的知识分子优点和更广泛的审查标准，被认为值得通过评估来获得支持。

项目成果

期刊论文数量（5）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Large-area arrays of epitaxially aligned silver nanotriangles seeded by gold nanostructures

DOI：
10.1039/d3qm01184d
发表时间：
2024-02-02
期刊：
MATERIALS CHEMISTRY FRONTIERS
影响因子：
7
作者：
Lawson，Zachary R.;Xu，Kaikui;Neretina，Svetlana
通讯作者：
Neretina，Svetlana

Periodic arrays of structurally complex oxide nanoshells and their use as substrate-confined nanoreactors

结构复杂的氧化物纳米壳的周期性阵列及其作为基底限制纳米反应器的用途

DOI：
10.1039/d3nr04345b
发表时间：
2023
期刊：
Nanoscale
影响因子：
6.7
作者：
Tuff, Walker J.;Hughes, Robert A.;Nieukirk, Brendan D.;Ciambriello, Luca;Neal, Robert D.;Golze, Spencer D.;Gavioli, Luca;Neretina, Svetlana
通讯作者：
Neretina, Svetlana