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

职业：纳米颗粒独立薄膜的电场辅助组装和表征

• 批准号: 1361068
• 负责人: James Dickerson
• 金额: $ 21.29万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-31 至 2016-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1361068&HistoricalAwards=false
• 关键词: CAREER; Electric; Field; Assisted; Assembly

****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.

****技术摘要*****该职业奖的重点是研究和优化悬浮纳米颗粒的电泳沉积条件以及纳米颗粒与聚合物薄膜的相互作用，以制造大表面积的独立式纳米颗粒薄膜。该奖项还旨在表征独立纳米颗粒薄膜的机械性能，如抗拉强度和杨氏模量，以探测纳米颗粒之间的粘附在宏观尺度上可以扩展到多大。对于某些纳米颗粒薄膜，如Fe3O4纳米晶体薄膜，可以探测到系综的磁性，如磁偶极耦合。磁性能的表征可以为这种磁性纳米颗粒之间的耦合提供实质性的见解。这类新材料可能会刺激全新复合材料和设备应用的发展，例如防腐和防雾涂层以及独立的柔性视频显示设备。由于现有的项目，如菲斯克-范德比尔特硕士到博士的桥梁项目，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，将参与这个项目。****非技术摘要****该职业奖侧重于研究由纳米材料集合形成的独立和可运输宏观材料的组装和特性。该研究旨在优化纳米颗粒在溶液中的条件和纳米颗粒以薄膜形式存在的条件，从而可以实现宏观尺寸的纳米材料薄膜的制造。该奖项还旨在表征独立纳米颗粒薄膜的机械性能，如抗拉强度，以探测这些纳米结构材料的强度。磁性能的表征可以为磁性纳米颗粒之间的耦合提供实质性的见解。这种新型材料可能会刺激广泛的技术发展和设备应用，例如防腐和防雾涂层以及独立式柔性视频显示设备。由于现有的项目，如菲斯克-范德比尔特硕士到博士的桥梁项目，不同群体的未被充分代表的研究生和本科生，以及高中生和中学教育工作者，将参与这个项目。