Organic electronic devices using epitaxially grown conjugated polymer crystalline nanowires on carbon nanotube and graphene electrodes

本研究的目的是开发一种新的方法，用于制造高性能的有机场效应晶体管，通过利用高分子链和高分子电极之间的强π-π相互作用，用于有效的电荷注入和传输。该方法是通过在单壁碳纳米管和石墨烯电极上外延生长共轭结晶聚合物纳米线。 将通过在碳纳米管和石墨烯电极上直接生长结晶的聚（3-己基噻吩）和聚（3，3-双十二烷基四噻吩）纳米线来制备有机晶体管，并将研究其电荷传输特性。所提出的晶体管将具有以下具体优点：（i）结晶聚合物纳米线将具有改进的纳米形态，（ii）电极和半导体材料之间的强π-π相互作用将提供改进的电荷注入，（iii）较高的导通电流和工作频率将使它们适合于高频工作，和（iv）由于降低的接触电阻和更好的沟道形态，高性能聚合物纳米线基有机晶体管的成功演示将对低成本塑料电子产品产生重大影响，包括柔性显示器、传感器片、射频识别标签和光电子产品。教育和外联活动包括：（一）对研究生、本科生和高中生进行跨学科培训;（二）通过讲座和实验室演示，将研究成果纳入新的研究生课程;（三）通过UCF多样性倡议办公室招募少数民族学生;（四）通过UCF多样性倡议办公室招募少数民族学生;（五）通过UCF多样性倡议办公室招募少数民族学生。的研究中心和（iv）推广到当地高中通过访问和社区通过网站和新闻信件。

The objective of this research is to develop a novel approach for the fabrication of high performance organic field effect transistors by exploiting strong pi-pi interaction between the polymer chains and the polymer-electrodes for both efficient charge injection and transport. The approach is via epitaxial growth of conjugated crystalline polymer nanowires on the single walled carbon nanotubes and graphene electrodes. Organic transistors will be fabricated via direct growth of crystalline poly (3-hexylthiophene) and poly(3,3-didodecylquaterthiophene) nanowires on the carbon nanotubes and graphene electrodes and their charge transport properties will be studied. The proposed transistors will have the following specific advantages: (i) crystalline polymer nanowires will have improved nanomorphology, (ii) strong pi-pi interaction between electrodes and semiconducting materials will provide improved charge injection, (iii) higher on-current and operational frequency will make them suitable for high frequency operation, and (iv) owing to reduced contact resistance and better channel morphology, nanoscale transistors will be demonstrated without any short channel effect.The successful demonstration of high performance polymer nanowires based organic transistors will have significant impact in low cost plastic electronics including flexible displays, sensor sheets, radiofrequency identification tags, and photovoltaics. Education and outreach activities includes, (i) interdisciplinary training of graduate, undergraduate and high school students, (ii) integration of research results in a new graduate level course through lecture and lab demonstration, (iii) minority students recruitment through UCF Office of Diversity Initiative and Women?s Research Center and (iv) outreach to local high schools through visits and to the community through website and news letters.