Strain- and Strain-Rate-Invariant Conductance in a Stretchable and Compressible 3D Conducting Polymer Foam
| Autor: | Hongping Yan, Jong Won Chung, Yuanwen Jiang, Lihua Jin, Eric Pop, Gan Chen, Vivian R. Feig, Kiara W Cui, Zhenan Bao, Shucheng Chen, Christian Linder, Yuxin Liu, Francisco Molina-Lopez, Yue Wang, Reza Rastak, Feifei Lian |
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| Rok vydání: | 2019 |
| Předmět: |
Conductive polymer
Technology Science & Technology PEDOTPSS Materials science IN-SITU Materials Science Conductance Materials Science Multidisciplinary Strain rate Invariant (physics) FILMS ELECTRONICS Ultimate tensile strength Compressibility General Materials Science Composite material Electrical conductor SKIN Electronic materials |
| Zdroj: | Matter. 1:205-218 |
| ISSN: | 2590-2385 |
| DOI: | 10.1016/j.matt.2019.03.011 |
| Popis: | Summary Advances in stretchable conductors have been one of the main driving forces behind the realization of wearable and epidermal electronics. However, retaining constant strain-property relationships under varying strain and strain rate remains a challenge. Here, we demonstrate a 3D structuring approach toward strain-accommodating, biocompliant conductors. In contrast to previous stretchable conductors, this method leads to polymeric materials with conductance that has zero dependence on (1) both tensile and compressive strain over an 80% strain range, and (2) strain rate from 2.5%/min to 2,560%/min. Their Young's moduli can be controllably tuned between 10 and 300 kPa. In addition, these conductors are ultra-lightweight and can be molded into virtually any shape and size. Their properties mimic the dynamic and softness of biological systems, rendering this a versatile platform for designing electronic materials that can potentially form intimate interfaces with humans. |
| Databáze: | OpenAIRE |
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