Patterning Organic Thin-film Transistors by Differential Microstructure

通过微分微结构图案化有机薄膜晶体管

• 批准号: 1102275
• 负责人: Oana Jurchescu
• 金额: $ 33万
• 依托单位: Wake Forest University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-06-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1102275&HistoricalAwards=false
• 关键词: Patterning; Organic; Thin; film; Transistors

The objective of this research is to improve the fundamental understanding on the interactions between organic semiconductors and self-assembled monolayers, and to apply it towards the development of a low-cost, high-throughput patterning technique for organic thin-film transistors. The approach is to exploit film-forming properties on selectively chemically modified surfaces and induce patterning by differential microstructure.This project will explore ordering of organic semiconductor molecules driven by interactions at interfaces. A high degree of order in the transistor channels, where the interactions are present, promotes high-mobility. Film regions surrounding the devices, where the interactions are not present, consist of high-resistivity regions of randomly oriented molecules, electrically insulating devices and yielding self-patterning. A wide variety of semiconductors will be employed as active layers, in combination with various surface treatments. Correlations between the chemical structure of the organic semiconductor and self-assembled monolayer, and their eventual film microstructure and electrical properties, will be established and used to generate design rules governing the limits and applicability of this technique.This research will deliver methods for patterning organic thin-film transistors. Such progress may accelerate commercialization of organic electronic devices. This interdisciplinary program not only will create an environment for cross-training graduate and undergraduate students from Wake Forest University in Physics, Chemistry, Material science and Engineering, but at the same time will cultivate community engagement by offering research opportunities for local high-school students, Forsyth Tech community college students and minority students, who will be trained in semiconductor fabrication and characterization techniques that will make them uniquely employable.

本研究的目的是提高对有机半导体和自组装单层之间相互作用的基本理解，并将其应用于开发用于有机薄膜晶体管的低成本、高通量图案化技术。该方法是利用选择性化学改性表面的成膜特性，并通过微分微结构诱导图案化。该项目将探索由界面相互作用驱动的有机半导体分子的排序。存在相互作用的晶体管通道的高度有序性促进了高迁移率。器件周围不存在相互作用的薄膜区域由随机取向分子的高电阻率区域、电绝缘器件和产生自图案化组成。多种半导体将与各种表面处理相结合用作有源层。将建立有机半导体和自组装单层的化学结构及其最终的薄膜微观结构和电性能之间的相关性，并用于生成控制该技术的限制和适用性的设计规则。这项研究将提供有机图案化的方法薄膜晶体管。这种进展可能会加速有机电子器件的商业化。这个跨学科项目不仅将为维克森林大学的研究生和本科生在物理、化学、材料科学和工程领域的交叉培训创造一个环境，同时还将通过为当地高中生提供研究机会来培养社区参与度、福赛斯科技社区学院的学生和少数族裔学生，他们将接受半导体制造和表征技术方面的培训，这将使他们具有独特的就业能力。