Collaborative Research: Charge Transport in Confined Molecular Assemblies

合作研究：限域分子组装体中的电荷传输

• 批准号: 1213962
• 负责人: Charles Drain
• 金额: $ 18.5万
• 依托单位: CUNY Hunter College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1213962&HistoricalAwards=false
• 关键词: Collaborative; Research; Charge; Transport; Confined

In this collaborative project, funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division, James D. Batteas at Texas A & M University and Charles Michael Drain at Hunter College of the City University of New York will design, synthesize and evaluate the conductive properties of porphyrinoids assembled on surfaces. Using directed assembly approaches to position molecules on surfaces, the team will examine: 1) how molecular connectivity and local molecular interactions (i.e. environment, nearest neighbor interactions) can be used to influence electron transport behavior and 2) how spatial confinement influences the assembly of molecules on surfaces in nanoscopic junctions. The overarching goal of this research is to develop a clear understanding of the role each part of the electroactive porphyrinoid, the substrate, and the environment, plays in the electronic properties of molecular based electronic devices. Furthering the understanding of these synergistic effects will enable the rational design of potential More-than-Moore devices, including enhanced photovoltaics, chemical sensors and molecular electronics. This work addresses a key intermediate of nanoscale molecular assemblies whose properties may show unique electrical behavior due to spatial confinement. Importantly, this work bridges the gap between single molecule and monolayer measurements where little research has been conducted. Students participating in this project will receive multidisciplinary training in materials science, nanoscience, surface chemistry and physics from both a theoretical and experimental perspective, allowing them to develop proficiency in multiple arenas. The outcomes of this work will be widely disseminated to a broad audience through a range of scientific publications and presentations made at informal public science events and research conferences. Aspects of the work will also be incorporated as demonstrations for elementary school students, with more advanced topics being brought right into the classrooms at Texas A & M University and Hunter College.

在这个由化学系大分子、超分子和纳米化学项目资助的合作项目中，詹姆斯·D·德克萨斯A M大学的Batteas和纽约亨特学院的Charles Michael Drain将设计、合成和评估组装在表面上的卟啉类化合物的导电性能。使用定向组装方法将分子定位在表面上，该团队将研究：1）分子连接性和局部分子相互作用（即环境，最近邻相互作用）如何用于影响电子传输行为，以及2）空间限制如何影响纳米级结中表面上分子的组装。 本研究的总体目标是发展一个清晰的理解的作用，每个部分的电活性卟啉，基板和环境，发挥基于分子的电子器件的电子性能。 进一步了解这些协同效应将使潜在的摩尔比摩尔设备，包括增强的光致发光，化学传感器和分子电子学的合理设计。这项工作解决了纳米级分子组装体的关键中间体，其性质可能由于空间限制而显示出独特的电行为。重要的是，这项工作弥合了单分子和单层测量之间的差距，其中很少进行研究。 参加该项目的学生将从理论和实验的角度接受材料科学，纳米科学，表面化学和物理学的多学科培训，使他们能够在多个领域发展熟练程度。 这项工作的成果将通过一系列科学出版物和在非正式公共科学活动和研究会议上所作的介绍，向广大受众广泛传播。这项工作的各个方面也将被纳入为小学生的示范，更先进的主题被带到得克萨斯州A M大学和亨特学院的教室。