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

Reihaneh Jamshidi,Reza Montazami,Yuanfen Chen

doi:10.3390/ma13071514

Reihaneh Jamshidi, Reza Montazami + Show 1 more

Open Access

https://doi.org/10.3390/ma13071514

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Abstract

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.

Highlights

IntroductionTransient electronics is an emerging technology with paramount potentials in a wide range of applications such as biomedical devices [1,2,3], environmental sensors, and hardware security [4,5].Examples of transient electronic devices include transistors [1], mechanical energy harvesters [6], energy storage devices [7,8] and functional circuits for radio frequency (RF) transmission [9,10].Early works on transient materials and electronics can be divided into three main categories: (i) electronics on bioresorbable substrates [11], (ii) partially transient electronics with specific degradable components [2], and (iii) fully dissolvable electronics [12]
The presented results demonstrate that controlled, expedited, and active transiency in a transient materials system is achieved by initiating gas-forming chemical reactions
Polymer composites materials system is achieved by initiating gas-forming chemical reactions

Summary

Introduction

Transient electronics is an emerging technology with paramount potentials in a wide range of applications such as biomedical devices [1,2,3], environmental sensors, and hardware security [4,5].Examples of transient electronic devices include transistors [1], mechanical energy harvesters [6], energy storage devices [7,8] and functional circuits for radio frequency (RF) transmission [9,10].Early works on transient materials and electronics can be divided into three main categories: (i) electronics on bioresorbable substrates [11], (ii) partially transient electronics with specific degradable components [2], and (iii) fully dissolvable electronics [12]. Transient electronics is an emerging technology with paramount potentials in a wide range of applications such as biomedical devices [1,2,3], environmental sensors, and hardware security [4,5]. Examples of transient electronic devices include transistors [1], mechanical energy harvesters [6], energy storage devices [7,8] and functional circuits for radio frequency (RF) transmission [9,10]. Most of the previous studies in this field have focused on dissolution based transiency [1,12,13,14,15,16,17,18]. And optically triggered transiency have been studied [19,20,21], yet to a lesser extent.

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