EAGER: Development of Intrinsically Stretchable, Active-Matrix OLED Displays

摘要：非技术领域：该项目结合了多个学科的最新进展，包括有机和聚合物半导体、高柔性和本质可拉伸有机发光二极管（oled）背后的关键材料、单壁碳纳米管和纳米线，以及本质可拉伸聚合物oled和高柔性碳纳米管背板的演示。这项工作将是促进可穿戴电子产品实际应用的重要一步，其功能设备采用创新的外形因素，由无毒材料和低成本工艺制造。这种显示器重量轻，可拉伸。它们可以像手帕一样折叠成小尺寸，便于携带，也可以展开成大屏幕，插入许多小型便携式电子设备，作为大尺寸的外部屏幕使用。这种显示器还可以覆盖凹凸不平的表面，并适应身体的运动，从而使它们像人类的衣服一样可穿戴。技术方面：本次EAGER将研究可重复拉伸50%的有源矩阵有机发光二极管（OLED）显示器演示的基本材料和可扩展工艺。这种显示器的所有元件，包括oled、薄膜晶体管和互连，本质上都是可拉伸的。这种新型显示器的简单性和拉伸能力可以提供重要的好处，例如从小体积装载到不平整的表面上部署到大尺寸显示器，与可穿戴电子设备兼容，重量轻。为了实现上述目标，EAGER项目将重点关注以下研究目标：(1)研究可拉伸薄膜晶体管所必需的基本结构-性能关系。对具有优异拉伸能力和层间附着力的通道层、源漏层和介电层的材料设计进行了广泛的探索，以达到理想的器件性能；(2)可拉伸oled与可拉伸薄膜晶体管的集成。一组RGB照明像素将被打印出来，并通过喷墨打印连接到相邻的晶体管上。工作涉及红、绿、蓝三色发光材料的选择和均匀发光的印刷工艺优化。为了更广泛地传播研究成果，并提高对下一代柔性和可拉伸电子产品先进制造重要性的认识，拟议的研究包括教育推广组件的计划，包括研究/教学实验室开发和社区大学和当地高中推广计划。FSU工程学院是FAMU （HBCU）和FSU的合资企业。

Abstract:Nontechnical:The proposed EAGER combines recent advances in several scientific disciplines, including organic and polymer semiconductors, key materials behind highly flexible and intrinsically stretchable organic light emitting diodes (OLEDs), single walled carbon nanotubes and silver nanowires spun out of efforts in nanomaterials development, and the demonstration of intrinsically stretchable polymer OLEDs and highly flexible CNT backplanes. This work will represent a major step forward in promoting practical application of wearable electronics, with the functional devices taking an innovative form factor, fabricated with non-toxic materials and by a low-cost process. Such displays will be light weight and stretchable.They can be folded like handkerchiefs into small sizes for easy portability and unfolded into large screens to plug in a number of small size portable electronics for use as large size, external screens. The displays can also conformally cover uneven surfaces and cope with body movement, thus making them wearable like human clothing.Technical:This EAGER will investigate the essential materials and scalable process for the demonstration of active-matrix organic light-emitting diode (OLED) displays that can be repeatedly stretched by 50%. All the components in such display including the OLEDs, thin-film transistors and interconnect are intrinsically stretchable. The simplicity and stretch ability of such new displays could offer important benefits such as deployment into large size displays from a small stowed volume onto uneven surfaces, compatibility with wearable electronic devices, and light weight.To achieve the above mentioned goals, the EAGER project will focus on the following research objectives: (1) Study of fundamental structure-property relationship essential for stretchable thin-film transistors. The research involves extensive exploration on materials design for the channel, the source/drain and the dielectric layers with superior stretch ability and inter-layer adhesion for ideal device performance ; (2) Integration of stretchable OLEDs and stretchable thin-film transistors. A set of RGB lighting pixels will be printed and connected to their neighboring transistors by ink-jet printing. The work involves the selection of light emitting materials for red, green and blue color emission and the optimization of printing process for uniform light emission.For broader dissemination of the research results and to improve awareness to the importance of advanced manufacturing for next generation flexible and stretchable electronics, the proposed research includes plans for educational outreach components, including research/teaching lab development and community college and local high school outreach programs. FSU College of Engineering is a joint venture between FAMU (an HBCU) and FSU.