CAREER: Electric Field-Assisted Assembly and Characterization of Freestanding Films of Nanoparticles

*技术摘要*该职业奖致力于研究和优化悬浮液中纳米颗粒的电泳沉积条件以及纳米颗粒膜与聚合物膜之间的相互作用，以制备大表面积的独立纳米颗粒膜。该奖项还旨在表征独立纳米颗粒膜的机械性能，如拉伸强度和杨氏模数，以探索纳米颗粒之间的粘附性在宏观范围内可以延伸到多大程度。对于一些纳米颗粒薄膜，如Fe3O4纳米晶薄膜，可以探测到系综的磁性，如磁偶极耦合。磁性的表征可以提供对这种磁性纳米颗粒之间的耦合的实质性洞察。这类新材料可能会刺激各种全新的复合材料和设备应用的发展，例如防腐防雾涂层和独立式、柔性视频显示设备。由于菲斯克-范德比尔特硕士到博士桥计划等现有项目，不同的和代表性不足的研究生和本科生以及高中生和中学教育工作者将参与这个项目。*非技术摘要*这个职业奖项侧重于研究由纳米材料集合形成的独立和可运输的宏观材料的组装和特征。这项研究旨在优化纳米粒子在溶液中的条件和纳米粒子在薄膜中的条件，以便能够制备宏观尺寸的纳米材料薄膜。该奖项还旨在表征独立纳米颗粒膜的机械性能，如拉伸强度，以探索这些纳米结构材料的强度。磁性的表征可以为磁性纳米颗粒之间的耦合提供实质性的洞察力。这类新材料可能会刺激广泛的技术发展和设备应用，如防腐和防雾涂层和独立式、柔性视频显示设备。由于菲斯克-范德比尔特硕士到博士桥计划等现有计划，研究生和本科生以及高中生和中学教育工作者的不同群体将参与这个项目。

****Technical Abstract*****This CAREER award focuses on an investigation and optimization of electrophoretic deposition conditions of nanoparticles in suspension and of nanoparticle film-polymer film interactions to fabricate large surface area freestanding nanoparticle films. The award also aims to characterize the mechanical properties of the freestanding nanoparticle films, such as the tensile strength and the Young's modulus, to probe how large the adhesion among nanoparticles can extend in the macroscopic scale. For some of the nanoparticle films, like the Fe3O4 nanocrystal films, the magnetic properties of the ensemble, such as the magnetic dipolar coupling, can be probed. Characterization of magnetic properties can provide substantial insight into the coupling between such magnetic nanoparticles. This new class of materials is likely to stimulate the development of wholly novel varieties of composite materials and device applications, such as anti-corrosion and anti-fogging coatings and freestanding, flexible video display devices. Diverse and underrepresented graduate and undergraduate students, as well as high school students and secondary school educators, will participate in this project thanks to existing programs, such as the Fisk-Vanderbilt Masters-to-PhD Bridge Program.****Non Technical Abstract****This CAREER award focuses on a study of the assembly and the characteristics of free-standing and transportable macroscopic materials formed from collections of nanomaterials. The investigation seeks to optimize the conditions for nanoparticles in a solution and for nanoparticles in film form, such that the fabrication of films of nanomaterials in macroscopic sizes can be achieved. The award also aims to characterize the mechanical properties of the freestanding nanoparticle films, such as the tensile strength, to probe how strong these nanostructured materials can be. Characterization of magnetic properties can provide substantial insight into the coupling between magnetic nanoparticles. This new class of materials is likely to stimulate wide ranging technical developments and device applications, such as anti-corrosion and anti-fogging coatings and freestanding, flexible video display devices. Diverse populations of underrepresented graduate and undergraduate students, as well as high school students and secondary school educators, will participate in this project thanks to existing programs, such as the Fisk-Vanderbilt Masters-to-PhD Bridge Program.