CUED Publications database

A Generic Soft Encapsulation Strategy for Stretchable Electronics

Li, K and Cheng, X and Zhu, F and Li, L and Xie, Z and Luan, H and Wang, Z and Ji, Z and Wang, H and Liu, F and Xue, Y and Jiang, C and Feng, X and Li, L and Rogers, JA and Huang, Y and Zhang, Y (2019) A Generic Soft Encapsulation Strategy for Stretchable Electronics. Advanced Functional Materials, 29. p. 1806630. ISSN 1616-301X

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Abstract

© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Recent progress in stretchable forms of inorganic electronic systems has established a route to new classes of devices, with particularly unique capabilities in functional biointerfaces, because of their mechanical and geometrical compatibility with human tissues and organs. A reliable approach to physically and chemically protect the electronic components and interconnects is indispensable for practical applications. Although recent reports describe various options in soft, solid encapsulation, the development of approaches that do not significantly reduce the stretchability remains an area of continued focus. Herein, a generic, soft encapsulation strategy is reported, which is applicable to a wide range of stretchable interconnect designs, including those based on two-dimensional (2D) serpentine configurations, 2D fractal-inspired patterns, and 3D helical configurations. This strategy forms the encapsulation while the system is in a prestrained state, in contrast to the traditional approach that involves the strain-free configuration. A systematic comparison reveals that substantial enhancements (e.g., ≈6.0 times for 2D serpentine, ≈4.0 times for 2D fractal, and ≈2.6 times for 3D helical) in the stretchability can be achieved through use of the proposed strategy. Demonstrated applications in highly stretchable light-emitting diodes systems that can be mounted onto complex curvilinear surfaces illustrate the general capabilities in functional device systems.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 13 May 2019 20:06
Last Modified: 17 Nov 2020 08:10
DOI: 10.1002/adfm.201806630