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

* 技术摘要 * 该职业奖的重点是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-聚合物膜相互作用，以制造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量，以探索纳米颗粒之间的粘附力在宏观尺度上可以延伸到多大程度。 对于一些纳米颗粒膜，如Fe 3 O 4纳米颗粒膜，可以探测系综的磁性，如磁偶极耦合。 磁特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开发全新的复合材料和设备应用，如防腐蚀和防雾涂层以及独立式柔性视频显示设备。 多样化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，将参加这个项目，这要归功于现有的计划，如菲斯克-范德比尔特硕士到博士桥梁计划。非技术摘要 * 这个职业奖的重点是组装和纳米材料的集合形成的独立和可运输的宏观材料的特性的研究。 该研究旨在优化纳米粒子在溶液中的条件和纳米粒子在膜的形式，这样可以实现宏观尺寸的纳米材料膜的制造。 该奖项还旨在表征独立纳米颗粒薄膜的机械性能，例如拉伸强度，以探索这些纳米结构材料的强度。 磁特性的表征可以提供对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广泛的技术发展和设备应用，如防腐蚀和防雾涂层以及独立式柔性视频显示设备。 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的不同人群，将参加这个项目由于现有的计划，如菲斯克-范德比尔特硕士到博士桥梁计划。

****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.