Systematic study on the mechanical and electric behaviors of the nonbuckling interconnect design of stretchable electronics

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Liu Hao ^1,2 Xue Riye ³ Hu Jianqiao ² Ping Xuecheng ⁴ Wu Huaping ⁵ Huang Mingqi ³ Zhang Han ⁶ Guo Xu ³ Li Rui ³ ^* Chen Yuli ¹ ^* Su Yewang ^2,7,8,9 ^*

文摘	Recently,we developed a nonbuckling interconnect design that provides an effective approach to simultaneously achieving high elastic stretchability,easiness for encapsulation,and high electric performance for stretchable electronics.This paper aims to systematically study its mechanical and electric behaviors,including comparisons of the nonbuckling and buckling interconnect designs on stretchability,effects of the thickness on electric performance,and modeling and experimental investigations on the finite deformation mechanics.It is found that the results on stretchability depend on the layouts.Long straight segments and small arc radii for nonbuckling interconnects yield an enhancement of stretchability,which is much better than that of buckling designs.On the other hand,shorter straight segments or thicker interconnects are better to lower the resistances of interconnects.Therefore,optimization of the designs needs to balance the requirements of both the mechanical and electric performances.The finite deformation of interconnects during stretching is analyzed.The established analytic model is well validated by both the finite element modeling and experimental investigations.This work is key for providing the design guidelines for nonbucklingbased stretchable electronics.
来源	Science China. Physics , Mechanics & Astronomy,2018,61(11):114611-1-114611-9 【核心库】
DOI	10.1007/s11433-018-9238-2
关键词	nonbuckling ; finite deformation ; stretchability ; stretchable electronics
地址	1. Institute of Solid Mechanics,Beihang University, Beijing, 100191 2. Institute of Mechanics,Chinese Academy of Sciences, State Key Laboratory of Nonlinear Mechanics, Beijing, 100190 3. Department of Engineering Mechanics,Dalian University of Technology, State Key Laboratory of Structural Analysis for Industrial Equipment;;International Research Center for Computational Mechanics, Dalian, 116024 4. School of Mechanical Engineering,Tianjin University of Science & Technology, Tianjin, 300222 5. Zhejiang University of Technology, Key Laboratory of E&M,Ministry of Education & Zhejiang Province, Hangzhou, 310014 6. Institute of Acoustics,Chinese Academy of Sciences, Beijing, 100190 7. School of Engineering Science,University of Chinese Academy of Sciences, Beijing, 100049 8. Department of Engineering Mechanics,Dalian University of Technology, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian, 116024 9. Huazhong University of Science and Technology, State Key Laboratory of Digital Manufacturing Equipment and Technology, Wuhan, 430074
语种	英文
文献类型	研究性论文
ISSN	1674-7348
学科	电子技术、通信技术
基金	国家自然科学基金 ; the Chinese Academy of Sciences via the “Hundred Talent Program”,the Strategic Priority Research Program of the Chinese Academy of Sciences ; the State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology ; the State Key Laboratory of Digital Manufacturing Equipment and Technology,Huazhong University of Science and Technology ; the Young Elite Scientists Sponsorship Program by CAST ; the Opening Fund of State Key Laboratory of Nonlinear Mechanics,the Personnel Training Plan of Tianjin City in China for the Key Young and Middle-Aged Innovation Talents,the National Key Research and Development Plan ; the Program for Changjiang Scholars,Innovative Research Team in University(PCSIRT) ; 国家教育部高等学校学科创新引智计划项目
文献收藏号	CSCD:6384390