Collaborative Research: Characterization of the Microstructure and Charge Transport at Interfaces of Semiconducting Polymers

合作研究：半导体聚合物微观结构和界面电荷传输的表征

• 批准号: 0906457
• 负责人: Harald Ade
• 金额: $ 31.76万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0906457&HistoricalAwards=false
• 关键词: Collaborative; Research; Characterization; Microstructure; Charge

ARRA STATEMENT:This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).TECHNICAL SUMMARY:This collaborative project aims to study the detailed interfacial structure of semiconducting and dielectric polymers. The influence of interfacial interactions on the molecular ordering and the electrical properties of rigid-rod semiconducting polymers is poorly understood. The proposed experiments will attempt to disaggregate, for the first time, the impact of molecular organization, dipolar interactions, and roughness on charge transport at interfaces of semiconducting polymers. The tasks to achieve this goal include: (1) controlled fabrication of interfaces of semiconducting and dielectric polymers, (2) characterization of the microstructure at their interface, and (3) electrical characterization to determine the electronic structure at the interface. Advanced synchrotron x-ray scattering methods, such as soft x-ray scattering, will be used to interrogate the structure at polymer-polymer interfaces. Detailed temperature dependent electrical measurements on thin film transistors will be used to examine the electronic density of states in the semiconducting polymer. The successful outcome of this effort will be an understanding of how molecular interactions at interfaces affect the transport of carriers in semiconducting polymers. NON-TECHNICAL SUMMARY:Semiconducting polymers are important materials for low-cost flexible electronics such as displays, distributed sensors, and solar cells. The detailed understanding of these materials gained through this research will be important for their future commercialization. The proposed collaborative research is highly multidisciplinary and will train students in a combination of materials science, chemistry, and electronics. Graduate students and the principal investigators will mentor summer high school and undergraduate students from underrepresented minorities allowing them to gain exposure to advanced research at large-scale synchrotron research facilities. The potential of organic electronics technology for society will be disseminated through demonstrations at local science night programs. This project will also aid in the development of a new integrated lecture course sequence on organic electronic materials at UCSB. International collaboration will be fostered through collaboration with researchers in the U.K.

ARRA声明：该奖项是根据2009年的《美国复苏与再投资法》（公法111-5）进行资助的。技术摘要：该协作项目旨在研究半导体和介电聚合物的详细界面结构。 界面相互作用对分子有序和刚性半导体聚合物的电性能的影响很差。 提出的实验将尝试首次将分子组织，偶性相互作用和粗糙度对半导体聚合物界面的电荷传输的影响进行分解。 实现此目标的任务包括：（1）对半导体和电介质聚合物的界面进行控制的制造，（2）微观结构在其界面处表征，以及（3）电气表征以确定界面处的电子结构。 高级同步加速器X射线散射方法（例如软X射线散射）将用于询问聚合物聚合物接口处的结构。 薄膜晶体管上的详细温度依赖性电测量将用于检查半导体聚合物中状态的电子密度。 这项工作的成功结果将是对界​​面的分子相互作用如何影响半导体聚合物中载体的运输。非技术摘要：半导体聚合物是低成本柔性电子（例如显示器，分布式传感器和太阳能电池）的重要材料。 通过这项研究获得的对这些材料的详细理解对于它们未来的商业化至关重要。 拟议的合作研究是高度多学科的，将培训学生结合材料科学，化学和电子产品。 研究生和主要研究人员将指导夏季高中和来自代表性不足的少数民族的本科生，从而使他们能够在大规模同步研究设施的高级研究中获得接触。 有机电子技术对社会的潜力将通过当地科学夜计划的示威来传播。 该项目还将有助于开发UCSB上有机电子材料的新综合讲座课程。 国际合作将通过与英国研究人员的合作来培养。