Interface Physics and Device Technologies of Carbon-Nanostructure-Enabled Vertical Heterojunction Devices

该计划的目标是推进基本理解，并进一步开发基于使用低维碳（纳米管，石墨烯）作为电子门控接触电极的新设备架构。pi已经展示了利用这种现象的新设备。具体来说，一种新的晶体管结构克服了有机半导体固有的迁移率限制，一种太阳能电池的功率转换效率可以通过电子门控显着提高。知识价值在于：1)通过开发一个全面的模型来加深对这一现象的理论理解，该模型捕捉了低维碳接触和相关垂直设备的基本物理特性；2)提供设计规则，在设备中利用这一特性，确定其优点和局限性；3)在新的方向上扩展设备的范围，从单个组件扩展到功能电路(例如逆变器、逻辑门、环形振荡器)。更广泛的影响：有机半导体有物理限制，限制了它们的作用范围。该项目的变革之处在于，即将开发的设备将大大扩展这一范围，允许更快、更高密度的塑料电子电路、更亮、更节能的显示器和更高效率的太阳能电池。教育和推广活动将包括将研究进展转化为本科和研究生课程材料，开发基于网络的学习模块，通过佛罗里达大学的推广项目监督少数民族和女性学生的研究，并通过学生科学培训项目让K-12学生早期接触电子技术。

The objective of this program is to advance the fundamental understanding and further develop new device architectures based on the use of low dimensional carbons (nanotubes, graphene) as electronically gated contact electrodes. The PIs have already demonstrated new devices exploiting the phenomenon. Specifically, a new architecture transistor that overcomes the inherent mobility limitations of organic semiconductors and a solar cell having a power conversion efficiency that can be dramatically improved by electronic gating. The intellectual merit is in the promise to 1) deepen the theoretical understanding of the phenomenon by developing a comprehensive model that captures essential physics of low-dimensional-carbon-contacts and related vertical devices, 2) provide design rules for exploiting this property in devices that establish the benefits and the limits, and 3) expand the range of the devices in new directions and from individual components to functional circuits (e.g. inverters, logic gates, ring oscillator). Broader impacts: organic semiconductors have physical limitations that bound the range of what they can do. The transformative aspect of this project is that the devices to be developed will greatly extend that range allowing for faster, higher density, plastic electronic circuits, brighter, more energy efficient displays, and higher efficiency solar cells. The educational and outreach activities will include translating the research progress to the undergraduate and graduate course materials, developing a web-based learning module, supervising minority and female student research through the outreach programs in University of Florida, and providing early exposure of K-12 students to electronics technology through the Student Science Training Program.