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Thermally Triggered Mechanically Destructive Electronics Based On Electrospun Poly(epsilon-caprolactone) Nanofibrous Polymer Films

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Title
Thermally Triggered Mechanically Destructive Electronics Based On Electrospun Poly(epsilon-caprolactone) Nanofibrous Polymer Films
Author
Gao, YangSim, KyoseungYan, XinJiang, JiangXie, JingweiYu, Cunjiang
Issue Date
2017-04
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v.7
Abstract
Electronics, which functions for a designed time period and then degrades or destructs, holds promise in medical implants, reconfigurable electronic devices and/or temporary functional systems. Here we report a thermally triggered mechanically destructive device, which is constructed with an ultrathin electronic components supported by an electrospun poly(epsilon-caprolactone) nanofibrous polymer substrate. Upon heated over the melting temperature of the polymer, the pores of the nanofibers collapse due to the nanofibers' microscopic polymer chain relaxing and packing. As a result, the polymer substrate exhibits approximately 97.5% area reduction. Ultra-thin electronic components can therefore be destructed concurrently. Furthermore, by integrating a thin resistive heater as the thermal trigger of Joule heating, the device is able to on-demand destruct. The experiment and analytical results illustrate the essential aspects and theoretical understanding for the thermally triggered mechanical destructive devices. The strategy suggests a viable route for designing destructive electronics.
URI
https://scholarworks.unist.ac.kr/handle/201301/31593
URL
https://www.nature.com/articles/s41598-017-01026-6
DOI
10.1038/s41598-017-01026-6
ISSN
2045-2322
Appears in Collections:
SNS_Journal Papers
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