INSPIRE Track 1: Exploring New Route of Optically Mediated Self-Assembly: Final Material Properties Determine Its Structures

INSPIRE 轨道 1：探索光介导自组装的新途径：最终材料特性决定其结构

• 批准号: 1344290
• 负责人: Xiang Zhang
• 金额: $ 80万
• 依托单位: University of California-Berkeley
• 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: 2013-09-15 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1344290&HistoricalAwards=false
• 关键词: INSPIRE; Track; Exploring; New; Route

This INSPIRE award is partially funded by the Electronic and Photonic Materials Program and the Solid State and Materials Chemistry Program in the Division of Materials Research in the Directorate for Mathematical and Physical Sciences; and the Nanomanufacturing Program in the Division of Civil, Mechanical and Manufacturing Innovation in the Directorate for Engineering.Technical Description: Structure-property relationships have long driven the discovery of novel materials. Optical metamaterials, a composite through structural design to achieve unprecedented materials properties, e.g., negative index of refraction and cloaking, introduce a new dimension in materials science. Metamaterials research has conventionally taken a "structures-determine-properties" approach. Material properties using rationally designed symmetry-breaking structures that can be realized by top-down fabrication methods such as lithography result in strongly anisotropic but small-scale metamaterials. Conventional self-assembly approaches, which may offer advantages of scalability and cost effectiveness, often result in simple structures with high degree of symmetry because complex and symmetry-broken structures are usually not thermodynamically favorable. In this project, combining material chemistry with optical physics, the investigators aim to overcome aforementioned critical challenges by exploring a path-breaking new approach of "properties-determine-structures" for scalable synthesis of a new class of metamaterials with unique properties, or properties not found in nature. Through the study of the symmetry effects of nanocomposites and models of plasmon-mediated self-assemblies, the team is developing new feedback strategies for controlling self-assembly processes. Plasmon is collective oscillation of electrons on metal surfaces. Using such autonomous feedback mechanisms, the final material properties dictate the material structural evolution during self-assembly, thereby achieving the desired complex symmetry-breaking structures.Non-technical Description: This interdisciplinary project brings together researchers from optics and chemistry to develop a revolutionary self-assembly route to large-scale synthesis of materials with complex symmetries that go far beyond materials fabricated or synthesized through conventional techniques. Light itself is used to guide the assembly into the desired structures. The team integrates this research project with education activities. For instance, the nanochemistry, optical physics, fabrication, optical/chemical characterization, and computational techniques developed in this project provide a multidisciplinary setting for training students to be next generation of leaders in science and engineering. This collaborative project aims to reshape materials research in both optical physics and material chemistry with a profound impact on a broad range of applications in manufacturing, energy technology and health care.

该INSPIRE奖是由电子和光子材料计划以及材料研究局的数学和物理科学局材料研究部的固态和材料化学计划部分资助的；以及工程局的民用，机械和制造创新部的纳米制造计划。技术描述：结构 - 统治关系长期以来一直驱动了新型材料的发现。光学超材料是通过结构设计的复合材料，以实现前所未有的材料特性，例如折射和掩饰的负索引，引入了材料科学的新维度。超材料研究通常采用了“结构确定性”方法。使用合理设计的对称性结构的材料特性，可以通过自上而下的制造方法（例如光刻）实现，从而实现强烈的各向异性但小规模的超材料​​。常规的自组装方法（可能具有可伸缩性和成本效益的优势）通常会导致具有高度对称性的简单结构，因为复杂和对称性破裂的结构通常在热力学上不利。在该项目中，将材料化学与光学物理学相结合，研究人员的目的是通过探索“属性确定结构”的突破性新方法来克服上述关键挑战，以概括具有独特特性或本质中未发现的独特性质的新类型的属性类别。通过研究纳米复合材料的对称效应和等离子体介导的自组件的模型，该团队正在制定用于控制自组装过程的新反馈策略。等离子体是金属表面上电子的集体振荡。使用这种自主反馈机制，最终的材料特性决定了自组装过程中的材料结构进化，从而实现了所需的复杂对称性破坏结构。NON-CEchnical描述：该跨学科项目汇集了从光学和化学的研究人员，从而通过革命性的构成材料进行革命性的构造，从而使研究人员汇集了构成大型材料的范围，该材料的构造范围是构成的，该材料的构造是构成的，该材料的构成是构成的。技术。 光本身用于引导组件进入所需的结构。该团队将该研究项目与教育活动相结合。例如，该项目中开发的纳米化学，光学物理学，制造，光学/化学表征以及计算技术为培训学生成为科学和工程领域的下一代领导者提供了多学科环境。该协作项目旨在重塑光学物理和材料化学的材料研究，并对制造，能源技术和医疗保健中的广泛应用产生深远的影响。