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Open AccessArticle

Active Transiency: A Novel Approach to Expedite Degradation in Transient Electronics

1
Department of Mechanical Engineering, University of Hartford, West Hartford, CT 06117, USA
2
College of Mechanical Engineering, Guangxi University, Nanning 530004, China
3
Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
*
Author to whom correspondence should be addressed.
Materials 2020, 13(7), 1514; https://doi.org/10.3390/ma13071514
Received: 27 January 2020 / Revised: 17 March 2020 / Accepted: 24 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue Recent Advances in Soft Electronics and Ionics)
Transient materials/electronics is an emerging class of technology concerned with materials and devices that are designed to operate over a pre-defined period of time, then undergo controlled degradation when exposed to stimuli. Degradation/transiency rate in solvent-triggered devices is strongly dependent on the chemical composition of the constituents, as well as their interactions with the solvent upon exposure. Such interactions are typically slow, passive, and diffusion-driven. In this study, we are introducing and exploring the integration of gas-forming reactions into transient materials/electronics to achieve expedited and active transiency. The integration of more complex chemical reaction paths to transiency not only expedites the dissolution mechanism but also maintains the pre-transiency stability of the system while under operation. A proof-of-concept transient electronic device, utilizing sodium-bicarbonate/citric-acid pair as gas-forming agents, is demonstrated and studied vs. control devices in the absence of gas-forming agents. While exhibiting enhanced transiency behavior, substrates with gas-forming agents also demonstrated sufficient mechanical properties and physical stability to be used as platforms for electronics. View Full-Text
Keywords: transient electronics; polymer composites; active transiency transient electronics; polymer composites; active transiency
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Jamshidi, R.; Chen, Y.; Montazami, R. Active Transiency: A Novel Approach to Expedite Degradation in Transient Electronics. Materials 2020, 13, 1514.

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