Fundamentals of Conjugated Ionomer Electronics

共轭离聚物电子学基础

• 批准号: 0519489
• 负责人: Mark Lonergan
• 金额: $ 32.1万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2009-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0519489&HistoricalAwards=false
• 关键词: Fundamentals; Conjugated; Ionomer; Electronics

This technical component of this project deals with certain fundamental principlesunderlying the application of ionically functionalized conducting polymers, so calledconjugated ionomers, to electronics. The three primary goals of the project are: (1) toelucidate the mechanism of current rectification at pn junctions based on conjugatedionomers; (2) to elucidate the mechanism of steady-state rectification in a new class ofheteroionic junctions formed between an undoped anionic and cationic ionomer; (3) toexplore a non-traditional method of doping conjugated polymers that relies on non-Faradaic processes. To achieve these goals, a comprehensive suite of electrical andelectrochemical characterization methods are applied to study a series of rationallydesigned polymer bilayer structures. These studies are complemented by studies onsingle layer structures and rely heavily on the availability of a family of conjugatedionomers or varying ionic functional group density. The results of the characterizationmethods are to be compared to both theories developed for inorganic semiconductoranalogues as well as those developed for molecular systems.The broader impacts of the proposal stem from better understanding the relationof polymeric to inorganic semiconductors as well as the unique properties of interfacesbetween mixed ionic/electronic conductors. In doing so, these studies will help guide thefuture development of electronic and optoelectronic devices, such as transistors and lightemittingdiodes, based on conjugated polymers. The project will also impact the trainingof both undergraduates and graduate students in the basic science of materials. Graduatestudents working on the project will be part of a comprehensive training program thatintegrates chemists and physicists and includes targeted technical training in the area ofsemiconductor devices as well as off-campus internships. A broad range ofundergraduates will be reached by the project both through their contributions to researchand through curriculum development. A new non-majors undergraduate course will bedeveloped that teaches basic chemical and physical principles using everyday materialsand the devices upon which they are based as a context.

这个项目的技术组成部分涉及离子功能化导电聚合物应用的某些基本原理，即所谓的共轭离聚体，用于电子学。该项目的三个主要目标是：(1)阐明基于共轭二聚体的pn结电流整流机制；(2)阐明未掺杂的阴离子和阳离子离子之间形成的一类新型异质结的稳态整流机制；(3)探索利用非法拉第过程掺杂共轭聚合物的非传统方法。为了实现这些目标，一套全面的电学和电化学表征方法被应用于研究一系列合理设计的聚合物双层结构。这些研究是对单层结构的研究的补充，并且在很大程度上依赖于共轭二聚体家族或不同离子官能团密度的可用性。表征方法的结果将与无机半导体类似物的理论以及分子系统的理论进行比较。该提议的更广泛的影响源于更好地理解聚合物与无机半导体的关系，以及混合离子/电子导体之间界面的独特性质。这样，这些研究将有助于指导基于共轭聚合物的电子和光电子器件的未来发展，如晶体管和发光二极管。该项目还将影响本科生和研究生在材料基础科学方面的培训。参与该项目的研究生将成为综合培训计划的一部分，该计划将化学家和物理学家结合起来，包括半导体设备领域的定向技术培训以及校外实习。通过对研究的贡献和课程的开发，该项目将覆盖范围广泛的本科生。一门新的非专业本科课程将被开发出来，使用日常材料和设备作为背景来教授基本的化学和物理原理。