Manufacturing Heterogeneous Composite Nanostructures by Layer-by-Layer Deposition and Self-Assembly

通过层层沉积和自组装制造异质复合纳米结构

• 批准号: 1636356
• 负责人: Andrea Tao
• 金额: $ 30万
• 依托单位: University of California-San Diego
• 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: 2016-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1636356&HistoricalAwards=false
• 关键词: Manufacturing; Heterogeneous; Composite; Nanostructures; Layer

There is an increasing need for new manufacturing techniques that are capable of organizing nanoscale components. Such techniques would enable the manufacturing of next-generation materials and devices for a diverse range of applications, including energy, medicine, and telecommunication. For example, components can be organized into stacked or layered nano-scale architectures to create three-dimensional composite materials and structures. Nanoscale components can also undergo self-assembly, where they spontaneously organize into precise arrangements. This research will seek to combine these two nanomanufacturing techniques into an integrated fabrication process. The project will involve experiment and modeling to gain new insights into how such a process can be used to engineer and design nanostructured materials. The results of this work will be used in educational activities to show how basic science and engineering research can drive technological innovation. Nanomanufacturing concepts will be introduced to undergraduates, high school students, and K-12 educators through outreach activities that show how basic science and engineering research can drive technological innovation. These activities will be designed to engage underrepresented minorities and women in nanomanufacturing research. This research aims to combine the capabilities of both layer-by-layer deposition and self-assembly to fabricate stacked nanoparticle architectures with exquisite control over inter-planar as well as intra-planar organization. The underlying theme of this work is to rationally engineer the assembly of nanoparticles (NPs) in the presence of interfaces and to exploit the unique interactions between NPs both within and across layers, which will be achieved through a close-knit collaboration between experiment and modeling. Nanoparticle interactions will be controlled within each layer in a multilayered structure using orthogonal polymer processing to address specific layers within the stack. Inter-planar assembly will be controlled by designing long-range interactions that enable coupled, synergistic assembly between NPs in different layers of a stack.
Quantitative analyses of the assembly process will be carried out and an experiment-guided, predictive model of NP assembly will be developed. Computational modeling will also play an integral role in understanding particle interactions within and across layers, and will provide an opportunity to gain new, fundamental insights into how NPs assemble in quasi-3D geometries and the effect of interfaces on particle diffusion and localization. The results of this work will be used to develop a new fabrication toolbox for device-relevant stacked nanoparticle-polymer architectures.

对于能够组织纳米级组件的新制造技术的需求日益增加。 这些技术将使下一代材料和设备的制造能够用于各种应用，包括能源，医药和电信。例如，组件可以组织成堆叠或分层的纳米级架构，以创建三维复合材料和结构。纳米尺度的组件也可以进行自组装，在那里它们自发地组织成精确的排列。本研究将寻求将这两种纳米制造技术联合收割机结合成一个集成的制造过程。该项目将涉及实验和建模，以获得新的见解，了解如何使用这样的过程来工程和设计纳米结构材料。这项工作的成果将用于教育活动，以展示基础科学和工程研究如何推动技术创新。纳米制造的概念将通过展示基础科学和工程研究如何推动技术创新的外展活动介绍给本科生，高中生和K-12教育工作者。这些活动旨在让代表性不足的少数民族和妇女参与纳米制造研究。本研究的目的是联合收割机的逐层沉积和自组装的能力，以制造堆叠的纳米粒子结构与精致的控制面间以及面内组织。这项工作的基本主题是合理地设计存在界面的纳米颗粒（NPs）的组装，并利用层内和层间NPs之间的独特相互作用，这将通过实验和建模之间的紧密合作来实现。纳米粒子的相互作用将在多层结构中的每一层内使用正交聚合物处理来控制，以解决堆叠内的特定层。面间组装将通过设计长程相互作用来控制，所述长程相互作用使得堆叠的不同层中的NP之间能够耦合、协同组装。amp;#8232;将进行装配过程的定量分析，并开发NP装配的实验指导的预测模型。计算建模也将在理解层内和层间粒子相互作用方面发挥不可或缺的作用，并将提供一个机会，以获得新的，基本的见解，了解纳米粒子如何在准3D几何形状中组装，以及界面对粒子扩散和定位的影响。这项工作的结果将用于开发一个新的制造工具箱，用于与设备相关的堆叠纳米颗粒聚合物架构。

项目成果

Directed assembly of metal nanoparticles in polymer bilayers

• DOI: 10.1039/c7me00104e
• 发表时间: 2018-04-01
• 期刊: MOLECULAR SYSTEMS DESIGN & ENGINEERING
• 影响因子: 3.6
• 作者: Hsu, Su-Wen;Long, Yuhan;Tao, Andrea R.
• 通讯作者: Tao, Andrea R.

Orientational phase behavior of polymer-grafted nanocubes

• DOI: 10.1039/c9nr04859f
• 发表时间: 2019-09-14
• 期刊: NANOSCALE
• 影响因子: 6.7
• 作者: Lee, Brian Hyun-jong;Arya, Gaurav
• 通讯作者: Arya, Gaurav

Halide-Directed Synthesis of Square Prismatic Ag Nanocrystals by the Polyol Method

• DOI: 10.1021/acs.chemmater.8b01166
• 发表时间: 2018-07-24
• 期刊: CHEMISTRY OF MATERIALS
• 影响因子: 8.6
• 作者: Hsu, Su-Wen;Tao, Andrea R.
• 通讯作者: Tao, Andrea R.

Efficient light generation from enhanced inelastic electron tunnelling

• DOI: 10.1038/s41566-018-0216-2
• 发表时间: 2018-08-01
• 期刊: NATURE PHOTONICS
• 影响因子: 35
• 作者: Qian, Haoliang;Hsu, Su-Wen;Liu, Zhaowei
• 通讯作者: Liu, Zhaowei

Interfacial Assembly of Tunable Anisotropic Nanoparticle Architectures

• DOI: 10.1021/acsnano.8b08733
• 发表时间: 2019-04-01
• 期刊: ACS NANO
• 影响因子: 17.1
• 作者: Tang, Tsung-Yeh;Zhou, Yilong;Arya, Gaurav
• 通讯作者: Arya, Gaurav