New Approaches to Electronic Materials Based on Conjugated Oligomers and Polymers.

本提案描述了利用新发现的碳-碳键形成过程合成共轭有机材料的研究，这些过程基于(1)炔与锆的偶联，以及(2)含氟芳烃的亲核芳香取代。利用这些合成方法，几种新型共轭材料将被生成，包括设计成具有高电子亲和和作为高效电子传输（n型）材料的材料。本项目开发的n型材料将应用于场效应晶体管和发光器件中，并对这些器件的性能进行评估。其他被瞄准的结构预计是高发射的，因此可用于发光装置。最后，将探索结合p型和n型片段的大分子和低聚物种的合成途径。这些材料的固态结构和中间相将被详细研究，具体的例子将被研究作为新的太阳能电池器件的组成部分。在有机和大分子化学项目的支持下，加州大学伯克利分校化学系的T. Don Tilley教授正在研究基于共轭低聚物和聚合物的电子材料的新方法。近年来，电子工业对经济和我们的生活水平做出了重大贡献。新材料的设计和发现推动了这些发展，使电子设备的制造取得突破。共轭低聚物和聚合物因其在发光二极管（led）、场效应晶体管（fet）和光伏电池等电子器件中取代无机元件的潜力而引起了相当大的兴趣。这种兴趣很大程度上源于广泛的潜在特性，以及通过对有机材料结构的合成操纵来调整这些特性的可用机会。最近，随着基于这种“塑料”材料的实用装置的实现，这一领域获得了相当大的发展势头。现在已经出现了商业应用，并且导电有机材料有望在未来的技术中发挥越来越大的作用。这一进展的速度将在很大程度上受到具有有用电子特性的新型有机材料的发展的影响。拟议的研究非常适合培训年轻科学家，使他们对科学和技术中的重要问题有一个很好的概述，并帮助他们发展一套广泛的技术技能，促进创新和创造力。

This proposal describes research on the synthesis of conjugated organic materials, making use of newly discovered carbon-carbon bond-forming processes, which are based on (1) the couplings of alkynes with zirconium, and (2) nucleophilic aromatic substitutions involving fluorinated arenes. Using these synthetic methods, several new types of conjugated materials will be generated, including materials designed to have high electron affinities and operate as efficient electron-transporting (n-type) materials. The n-type materials developed in this program will be incorporated into field effect transistors and light-emitting devices, and the performances of these devices will be evaluated. Other structures to be targeted are expected to be highly emissive and therefore of use in light-emitting devices. Finally, synthetic routes to macromolecular and oligomeric species that combine p- and n-type segments will be explored. The solid-state structures and mesophases of such materials will be studied in detail, and specific examples will be investigated as components in new solar cell devices. With the support of the Organic and Macromolecular Chemistry Program, Professor T. Don Tilley, of the Department of Chemistry at the University of California - Berkeley, is studying new approaches to electronic materials based on conjugated oligomers and polymers. In recent years, the electronics industry has made significant contributions to the economy and our standard of living. These developments have been fueled by the design and discovery of new materials that allow breakthroughs in the fabrication of electronic devices. Conjugated oligomers and polymers have attracted considerable interest for their potential to replace inorganic components in electronic devices such as light-emitting diodes (LEDs), field-effect transistors (FETs) and photovoltaic cells. Much of this interest stems from the wide range of properties that are potentially accessible and the available opportunities for tuning these properties via synthetic manipulation of the organic material's structure. Recently, this field gained considerable momentum with the realization of practical devices based on such "plastic" materials. Commercial applications have now emerged, and conducting organic materials are expected to play an expanding role in future technologies. The pace of this progress will be heavily influenced by the development of new organic materials with useful electronic properties. The proposed research is well suited for the training of young scientists, providing them with a good overview of important issues in science and technology and helping them to develop a broad set of technical skills and promote innovation and creativity.