EPDT Organic Devices Based on Polythiophene: A Study on Contacts

基于聚噻吩的 EPDT 有机器件：接触研究

• 批准号: 0524340
• 负责人: Lisa Porter
• 金额: --
• 依托单位: Carnegie-Mellon University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0524340&HistoricalAwards=false
• 关键词: EPDT; Organic; Devices; Based; Polythiophene

The objective of this research is to understand the physics and chemistry of ohmic contact formation to semiconducting polythiophene films and to optimize the contacts for electronic devices, such as organic field-effect transistors, light emitting diodes, and photovoltaics. The approach emphasizes a consideration of both the chemistry and the energy level alignment at the contact-polythiophene interfaces. Specifically, chemical bonding at the interfaces will be enhanced via regiochemical positioning of side chains. Selected metals will be deposited using both metal-on-organic and organic-on-metal configurations. Thin-film transistor structures will be fabricated and measured to yield key electrical properties, such as the carrier mobility and the contact resistance. The broader impacts include the technology necessary for the development of highly versatile and inexpensive electronic devices, such as electronic displays on flexible substrates and large-area solar cells. The latter application is particularly exciting, because the low cost in combination with theoretical efficiencies of organic solar cells makes wide-scale production of renewable energy a realistic goal. This research program emphasizes an interdisciplinary, cross-college collaboration, an approach that is becoming more valuable with the increasing complexity of current and future devices. In addition, the project emphasizes the education and training of graduate students in essential future technology and includes minority students from a Historically Black University. The supervision of one or two undergraduate research projects will also be conducted to inspire undergraduate students to continue their education and training in science and engineering.

这项研究的目的是了解欧姆接触形成的物理和化学与半导体的聚噻吩膜，并优化电子设备的接触，例如有机场效应晶体管，光发射二极管和光伏电动机。该方法强调了在接触聚噻吩界面上对化学和能级对齐的考虑。具体而言，将通过侧链的区域定位来增强界面的化学键合。 选定的金属将使用金属有机和金属构构层沉积。 将制造并测量薄膜晶体管结构，以产生关键的电气性能，例如载体迁移率和接触电阻。更广泛的影响包括开发高度和廉价的电子设备所需的技术，例如在柔性基板和大面积太阳能电池上的电子显示器。后一种应用特别令人兴奋，因为低成本与有机太阳能电池的理论效率相结合，使可再生能源的广泛生产成为现实的目标。该研究计划强调了一种跨学科的跨学科合作，这种方法随着当前和未来设备的复杂性而变得越来越有价值。此外，该项目强调了基本未来技术研究生的教育和培训，其中包括一所历史悠久的黑人大学的少数民族学生。还将对一两个本科研究项目进行监督，以激发本科生继续他们在科学和工程方面的教育和培训。