Synthesis of Chemically Stable Polycyclic Aromatic Hydrocarbons for High-Performance Organic Electronics

用于高性能有机电子器件的化学稳定多环芳烃的合成

• 批准号: 1508627
• 负责人: Alejandro Briseno
• 金额: $ 38.52万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-07-01 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1508627&HistoricalAwards=false
• 关键词: Synthesis; Chemically; Stable; Polycyclic; Aromatic

Nontechnical Description: Organic semiconductors are of growing importance for solution-processed transistors, for lighting applications, and as materials used to generate solar energy due to the prospect for low-cost production of these materials. For all these applications, it is crucial that the organic semiconductor materials exhibit high performance and chemical stability. This project aims to develop a new class of organic semiconductor materials for use in high-performance electronic applications. Specifically, this project explores how molecular design will affect chemical stability, crystallization, and device performance. Understanding the structure-property relationship in these molecular systems will allow scientists to rationally design even better materials for use in real-world consumer electronic devices. In addition to providing research opportunities for undergraduate, graduate, and postdoctoral researchers from diverse backgrounds (utilizing the Graduate Students for Diversity in Science & Engineering at University of Massachusetts - Amherst that the PI created), the new scientific concepts created in this project are discussed in tutorials and workshops at international conferences, and also taught to high-school students from two nearby schools that serve a population of minority students in western Massachusetts.Technical Description: This project explores the hypothesis that the addition of one or more aromatic pi sextets (benzenoid rings) in angular polycyclic aromatic hydrocarbon semiconductors can improve the molecular packing in crystalline thin films, charge transport properties, and chemical stability due to increased resonance stabilization energies. The hypothesis is being verified through the characterization of crystalline thin films via x-ray analysis, transistor measurements, and theory/computational methods to explore transition states of pericyclic/cycloaddition reactions. The unique approach and use of a new class of aromatic semiconductors combined with theory and sophisticated scattering methods contribute to connecting fundamental principles of molecular design to charge transport at organic-organic and organic-substrate interfaces.

非技术描述：有机半导体对于溶液处理的晶体管，照明应用以及由于这些材料低成本生产的前景而用于产生太阳能的材料越来越重要。对于所有这些应用，有机半导体材料表现出高性能和化学稳定性至关重要。该项目旨在开发一种新的有机半导体材料，用于高性能电子应用。具体而言，该项目探讨了分子设计将如何影响化学稳定性，结晶和设备性能。了解这些分子系统中的结构 - 陶艺关系将使科学家能够合理设计更好的材料，以用于现实世界中的消费电子设备。除了为来自不同背景的本科，研究生和博士后研究人员提供研究机会（利用研究生在马萨诸塞大学的科学与工程学多样性 - Amherst - Amherst所创建的Amherst），该项目中创建的新科学概念还在该项目中创建的新科学概念。在国际会议的教程和讲习班中，还向来自西部马萨诸塞州西部少数民族学生提供服务的附近两所学校的高中生。角度多环芳烃中的苯环）可以改善晶体薄膜中的分子堆积，电荷传输特性以及由于增加的谐振稳定能而引起的化学稳定性。通过通过X射线分析，晶体管测量值以及理论/计算方法来探索周环/环载反应的过渡状态，通过表征结晶薄膜的表征来验证该假设。独特的方法和新的芳族半导体与理论和复杂散射方法相结合的方法有助于连接分子设计的基本原理，从而在有机有机和有机底物界面上为传输充电。