Conjugated Ionomers: Internal Compensation as a Route to Engineering Charge Depletion Layers and Interfaces Between Dissimilarly Doped Conjugated Polymers

半导体界面的电荷耗尽是现代微电子器件的基础。该奖项旨在探索无机半导体器件中电荷耗尽与基于共轭聚合物的器件之间的类比。提出的工作的中心主题是使用内部补偿掺杂共轭聚合物来设计界面上的电荷耗尽层。内部补偿聚合物，不像传统的掺杂共轭聚合物，不包含任何移动的反离子。在移动反离子存在的情况下，电荷耗尽层不能被支持，并且最可能产生电荷耗尽层的界面对于氧化还原反应来说是不稳定的。本研究以官能团密度可控的聚乙炔离聚体为中心，采用开环复分解共聚法制备了功能化环四烯。这些材料将用于对共轭聚合物界面的电荷耗尽作为掺杂剂密度的函数进行首次全面研究，并探索所有聚合物pn结的可能性。这些研究将为基于掺杂共轭聚合物的各种器件的设计奠定基础。与项目初期一样，我们提出了新的教育措施，以配合基础科学与工程的持续融合。特别是，建议继续开展本科生夏令营的发展工作。建议这些营地继续开展本科夏令营的发展工作。这些营（芯片营和保利营）向化学学生介绍材料科学中高度相关的主题，这些主题在传统化学教育中经常被忽视。

Charge depletion at semiconductor interfaces forms the foundation for modern microelectronic devices. This award seeks to explore the analogy between charge depletion in inorganic semiconductor devices and those based on conjugated polymers. The central theme of the proposed work is the use of internally compensated doped conjugated polymers to engineer charge depletion layers at interfaces. Internally compensated polymers, unlike traditionally doped conjugated polymers, do not contain any mobile counter-ions. In the presence of mobile counter-ions, charge depletion layers cannot be supported and the interfaces where they are most likely to be generated are not stable with respect to redox reactions. The proposed work centers on polyacetylene ionomers with a controlled density of functional groups and prepared by the ring-opening metathesis copolymerization of functionalized cyclooctatetraenes. These materials are to be used to conduct the first comprehensive study of charge depletion at conjugated polymer interfaces as a function of dopant density and to explore the possibility of all polymeric pn junctions. These studies will lay the fundamental foundation for the design of a variety of devices based on doped conjugated polymers.As in the initial term of the project, new educational initiatives are proposed to keep pace with the continued convergence of basic science and engineering. In particular, continuing work on the development of summer undergraduate camps is proposed. These camps continuing work on the development of summer undergraduate camps is proposed. These camps (Chip Camp and Poly Camp) introduce chemistry students to highly relevant topics in materials science that are often overlooked in a traditional chemistry education.