Electric-Field Assembly of Particles via Anisotropic Interactions

通过各向异性相互作用进行粒子的电场组装

基本信息

批准号：
1336893
负责人：
Ning Wu
金额：
$ 37.17万
依托单位：
Colorado School of Mines
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2013
资助国家：
美国
起止时间：
2013-09-01 至 2017-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1336893&HistoricalAwards=false
关键词：
Electric Field Assembly Particles via

项目摘要

1336893PI: WuThis project aims at creating, tuning, and exploiting a variety of anisotropic interactions in colloidal particles by a combination that consists of varying geometric, compositional, and interfacial properties of the particles and an application of an external electric field. The objective is to use a complementary experimental and theoretical approach to elucidate the fundamental links between various types of microscopically anisotropic interactions and the resulting mesoscopically assembled phases. This fundamental understanding will also be used to develop a scalable process that integrates both electric and convective flow fields to build macroscopic functional coatings that exhibit novel optical properties.In-situ manipulation of the anisotropic interactions and dynamic pathways will typically lead to micro- and nano-structures with reduced symmetry and enhanced directionality. These structures can interact with a broad range of electromagnetic waves in unique ways and exhibit collective plasmonic, photonic, optoelectronic, and magneto-optical properties that are not manifested at the level of single particles. As a result, the scalable coating technique developed in this project could lead to economical fabrication of next-generation functional materials that have great potential in energy-related applications, such as high-efficiency solar cells, photonic crystals, and energy-saving displays. The research will be fully integrated with education and outreach efforts that consist of training public school teachers in the Denver area, developing the learning modules related to colloids, and participating in summer research program for high school students.

1336893PI：Wuthis项目旨在通过组合组合组合来创建，调整和利用各种各向异性相互作用，该组合由颗粒的几何形状，组成和界面特性组成，以及外部电场的应用。目的是使用互补的实验和理论方法来阐明各种类型的显微镜各向异性相互作用与所得的中镜组装相之间的基本联系。这种基本的理解还将用于开发可扩展的过程，该过程都集成了电气和对流流场，以构建具有新颖的光学特性的宏观功能涂层。对各向异性相互作用和动态途径的静态操纵通常会导致微型和微型和纳米。 - 具有降低对称性和增强方向性的结构。这些结构可以以独特的方式与广泛的电磁波相互作用，并表现出集体等离子，光子，光电子和磁光的特性，这些特性在单个颗粒的水平上未表现出来。结果，该项目中开发的可扩展涂层技术可能会导致下一代功能材料的经济制造，这些功能材料在能源相关的应用中具有很大的潜力，例如高效太阳能电池，光子晶体和节能。这项研究将与教育和外展工作完全融合，包括在丹佛地区培训公立学校教师，开发与胶体相关的学习模块，并参加高中生的夏季研究计划。