Mechanics of Stretchable Electronics

可拉伸电子器件的力学

• 批准号: 0700440
• 负责人: Hanqing Jiang
• 金额: --
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-01 至 2011-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0700440&HistoricalAwards=false
• 关键词: Mechanics; Stretchable; Electronics

This research aims to develop a mechanics theory for the emerging field of stretchable electronics, i.e., electronics devices can be fully flexed and stretched while function, which will revolutionize many aspects of daily life, from artificial muscle to wearable computers. To make brittle semiconductor materials (e.g., silicon) stretchable, mechanics plays an indispensable role. The theory to be developed investigates the mechanics issues associated with stretchable electronics and eventually aids in realizing the function of full stretchability. It is different from existing thin film studies in the following two aspects: (1) finite deformation effect since stretchable electronics may experience large deformation (more than 50% strain); and (2) extremely large thin film/substrate elastic mismatch, about 5 orders of magnitude difference in the elastic moduli of compliant substrate and stiff thin film in stretchable electronics. The comprehensive investigation of these issues will provide the core knowledge needed for the successful development of stretchable electronics.This work will result in new methodologies for the design and processing of thin film/substrate system for electronics with extremely high stretchability. The proposed program also includes strong and active education programs. Besides new course development based on the state-of-the-art knowledge of this field, on- and off-campus programs with specific emphasis on women and American Indian students, such as Summer Rotation for American Indians Students, will be developed to promote the involvement of underrepresented groups in the development of stretchable electronics.

这项研究旨在为新兴的可伸展电子学领域发展一种力学理论，即电子设备可以在工作时完全弯曲和伸展，这将给日常生活的许多方面带来革命性的变化，从人造肌肉到可穿戴计算机。要使脆性半导体材料(如硅)可拉伸，力学起着不可或缺的作用。即将开发的理论将研究与可伸展电子相关的力学问题，并最终帮助实现完全可伸展的功能。它与已有的薄膜研究在以下两个方面有所不同：(1)有限变形效应，因为可伸缩电子器件可能会经历大变形(超过50%的应变)；(2)极大的薄膜/衬底弹性失配，可伸缩电子器件中柔性衬底和刚性薄膜的弹性模量相差约5个数量级。对这些问题的全面研究将为可伸缩电子产品的成功开发提供所需的核心知识。这项工作将为具有极高可伸展性能的电子产品的薄膜/衬底系统的设计和加工提供新的方法。拟议中的计划还包括强有力和积极的教育计划。除了基于该领域最先进知识的新课程开发外，还将开发特别针对女性和美国印第安人学生的校内外项目，如美国印第安人学生的暑期轮换，以促进代表不足的群体参与可伸缩电子产品的开发。