Polymer self-assembly directed hybrid nanostructures: from amorphous to polycrystalline to single crystal materials

聚合物自组装定向杂化纳米结构：从非晶到多晶再到单晶材料

• 批准号: 1104773
• 负责人: Ulrich Wiesner
• 金额: $ 39.6万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-15 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1104773&HistoricalAwards=false
• 关键词: Polymer; self; assembly; directed; hybrid

TECHNICAL SUMMARY:With a program on polymer self-assembly of directed hybrid nanostructures the PI will pursue the synthesis, characterization and structure-property correlation studies for novel classes of nanostructured amorphous, polycrystalline and single crystal materials with expitaxial relations to their substrates. Networked morphologies are targeted as obtained from self-assembly of ABC triblock terpolymers used as structure directing agents for inorganic materials including oxides, metals and semiconductors. The aim of the proposed program is to understand the underlying fundamental chemical, thermodynamic, and kinetic formation principles enabling generalization of results over a wider class of materials systems. The research includes synthesis of all necessary organic/polymer and inorganic components, characterization of assembly structures using various scattering and electron microscopy techniques, study of specific properties, and investigation of optoelectronic devices. Interdisciplinarity will be a central feature of the effort. The project will also involve extensive interactions with several researchers at Cornell and abroad (Cambridge and Oxford Universities, UK) who have complementary expertise.NON-TECHNICAL SUMMARY:The PI proposes to study the fundamental principles for successfully nanostructuring various materials such as oxides, metals, and semiconductors with the help of specially designed polymers. These polymers should enable assembly of highly complex structures. If successful, this program will have significant impact in a broad range of areas from microelectronics to energy conversion and storage enabled by novel ways to organize matter into nanostructures with functionalities not previously available. The program will promote an interdisciplinary way of teaching, training, and learning for students at all levels. It will further involve the participation of underrepresented groups, enhancement of the infrastructure for research and education, and industrial outreach. The PI will work with high school teachers in a nearby school district to promote learning and understanding related to materials science and engineering.

技术摘要：通过定向混合纳米结构的聚合物自组装计划，PI 将致力于与其基底具有外延关系的新型纳米结构非晶、多晶和单晶材料的合成、表征和结构-性能相关性研究。网络形态是通过 ABC 三嵌段三元共聚物的自组装获得的，用作无机材料（包括氧化物、金属和半导体）的结构导向剂。该计划的目的是了解基本的化学、热力学和动力学形成原理，从而能够将结果推广到更广泛的材料系统中。该研究包括所有必要的有机/聚合物和无机成分的合成、使用各种散射和电子显微镜技术表征组装结构、特定性能的研究以及光电器件的研究。跨学科性将是这项工作的核心特征。 该项目还将与康奈尔大学和国外（英国剑桥大学和牛津大学）的几位具有互补专业知识的研究人员进行广泛的互动。非技术摘要：PI建议研究成功纳米结构各种材料（例如氧化物、金属）的基本原理，以及借助专门设计的聚合物的半导体。 这些聚合物应该能够组装高度复杂的结构。 如果成功，该计划将在从微电子到能量转换和存储的广泛领域产生重大影响，通过新的方法将物质组织成具有以前不可用的功能的纳米结构。该计划将为各个级别的学生推广跨学科的教学、培训和学习方式。它将进一步涉及代表性不足群体的参与、加强研究和教育基础设施以及工业推广。 PI 将与附近学区的高中教师合作，促进材料科学与工程相关的学习和理解。