GOALI: Mechanics of Permeation Barriers in Flexible Electronics

GOALI：柔性电子产品渗透屏障的力学

• 批准号: 0856540
• 负责人: Teng Li
• 金额: $ 30.88万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-05-01 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0856540&HistoricalAwards=false
• 关键词: GOALI; Mechanics; Permeation; Barriers; Flexible

The objective of this research is to investigate the durability and hermeticity of multilayer organic/inorganic permeation barriers in flexible electronics under large mechanical deformation and environmental moisture attack. Flexible electronics is being developed for an exciting array of applications, such as paper-like displays and organic light emitting diodes. The functional organic materials used in flexible devices are extremely vulnerable to moisture, thus result in a sharply limited device lifetime to a grand challenge to the future success of flexible electronics technology. Multilayer organic/inorganic permeation barriers are emerging as a promising solution to the stringent barrier requirement of flexible electronics. The mechanical failure of the multilayer permeation barriers, however, could be fatal to the barrier performance. To date, the mechanical durability of multilayer permeation barriers is largely unexplored. In this project, a collaborative research framework (from modeling and experiments to design) will be built to explore the yet-unexplored mechanisms that govern the mechanical durability and barrier performance of multilayer permeation barriers. By advancing the understanding of permeation barrier technology, this project will pave the way for the development of viable flexible electronics, whose widespread use addresses a wide range of societal needs. The proposed program also includes integrated outreach and education efforts. The summer internship at the industry partner provides the students a unique opportunity to interact with multidisciplinary industrial experts on a cutting-edge research topic. Furthermore, by disseminating research findings via iMechanica.org and macroelectronics.org, the project will also increase public awareness about flexible electronics technology.

本研究的目的是研究柔性电子器件中多层有机/无机渗透屏障在大机械变形和环境湿气侵袭下的耐久性和气密性。 柔性电子产品正在开发用于一系列令人兴奋的应用，例如纸质显示器和有机发光二极管。柔性器件中使用的功能有机材料极易受潮，从而导致器件寿命急剧受限，这对柔性电子技术未来的成功构成了巨大挑战。多层有机/无机渗透屏障正在成为满足柔性电子产品严格屏障要求的有前途的解决方案。然而，多层渗透屏障的机械故障可能对屏障性能造成致命影响。迄今为止，多层渗透屏障的机械耐久性很大程度上尚未得到探索。在该项目中，将建立一个协作研究框架（从建模、实验到设计），以探索尚未探索的控制多层渗透屏障的机械耐久性和屏障性能的机制。通过增进对渗透屏障技术的理解，该项目将为开发可行的柔性电子产品铺平道路，其广泛使用可满足广泛的社会需求。拟议的计划还包括综合外展和教育工作。行业合作伙伴的暑期实习为学生提供了与多学科行业专家就前沿研究课题进行互动的独特机会。 此外，通过 iMechanica.org 和 Macro electronics.org 传播研究成果，该项目还将提高公众对柔性电子技术的认识。