Novel molecular engineering and processing approaches for high-performance organic transistor devices: the role of polymer structure and morphology

高性能有机晶体管器件的新型分子工程和加工方法：聚合物结构和形态的作用

• 批准号: 0824188
• 负责人: Lisa Porter
• 金额: $ 50万
• 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: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2012-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0824188&HistoricalAwards=false
• 关键词: Novel; molecular; engineering; processing; approaches; Novel; molecular; engineering; processing; approaches

Research and development of organic semiconductors for electronic applications have shown intense growth in the last few years. Versatile attributes, such as solution processability and low cost, render these materials particularly attractive for applications such as electronic displays on flexible substrates, organic field effect transistors (OFETs) and large-area photovoltaics. However, carrier mobilities in organic semiconductors are much lower than their inorganic homologues. Evidence now indicates that carrier mobility in these systems depends on molecular structure and organization. Intellectual merit: Our objective is to achieve better understanding of structural ordering effects on carrier mobility in polymer-based electronic devices. We propose to focus on optimizing the performance of OFETs based on polymers using novel synthesis and processing techniques that will achieve both amorphous and highly crystalline polymer morphologies. Our approach will include correlations of materials structural changes and device architecture with device performance. While the device applications will be focused on OFETs, the conclusions will pertain to a wide range of conducting polymer technologies.Broader impacts: It is the aim in this project to train two graduate students and three undergraduate researchers in the area of structure-property-performance relationships needed for breakthrough technologies in electronic polymer-based devices. The students will have opportunities to interact with Plextronics, a local company and a technology leader in commercialization of organic light-emitting diodes and photovoltaics. The investigators will also collaborate with teachers in the Pittsburgh Public Schools (~60% minority students) on projects to experiment with conducting polymers.

在过去几年中，用于电子应用的有机半导体的研究和开发显示出强烈的增长。多功能属性（例如解决方案的加工性和低成本）使这些材料对诸如柔性基材，有机田间效应晶体管（OFET）和大面积光伏晶体管的应用特别有吸引力。但是，有机半导体中的载流子远低于其无机同源物。现在的证据表明，这些系统中的载流子迁移率取决于分子结构和组织。智力优点：我们的目标是更好地理解基于聚合物的电子设备中载体移动性的结构有序影响。我们建议使用新型的合成和加工技术来优化基于聚合物的OFET的性能，从而实现无定形和高度结晶的聚合物形态。我们的方法将包括材料结构更改和设备架构与设备性能的相关性。虽然设备应用将集中在OFET上，但结论将与广泛的指导聚合物技术有关。Boader的影响：该项目的目的是培训两名研究生和三名本科研究人员，该领域是在基于电子聚合物设备中实现突破性技术所需的结构 - 培训表现关系。学生将有机会与当地公司的Plextronics互动，并且是有机发光二极管和光伏商业化的技术领导者。 调查人员还将与匹兹堡公立学校（约60％的少数族裔学生）的老师合作，​​以尝试进行聚合物进行试验。