Issue 42, 2019

A highly stretchable strain-insensitive temperature sensor exploits the Seebeck effect in nanoparticle-based printed circuits

Abstract

Stretchable temperature sensors are critical components in soft robotics. Most existing temperature-sensing technologies feature a strong coupling between the response to temperature and response to deformation of the measured object, resulting in strain-polluted temperature measurements. Here we leverage the Seebeck effect in nanoparticle-based printed circuits. Using nanoparticle-based circuits as conductive wires provides stretchability. While a resistive measurement is highly perturbed by strain variations, using a Seebeck-induced change in the voltage ensures that the measured signal is insensitive to strain. Two nano-structured wires made of different materials are printed and embedded in a soft polymeric film to form a micro-thermocouple. This temperature sensor shows good stretchability up to 40% strain, high linearity of response, and excellent repeatability between different samples.

Graphical abstract: A highly stretchable strain-insensitive temperature sensor exploits the Seebeck effect in nanoparticle-based printed circuits

Supplementary files

Article information

Article type
Paper
Submitted
14 Jul 2019
Accepted
30 Sep 2019
First published
03 Oct 2019
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. A, 2019,7, 24493-24501

A highly stretchable strain-insensitive temperature sensor exploits the Seebeck effect in nanoparticle-based printed circuits

Y. Xin, J. Zhou and G. Lubineau, J. Mater. Chem. A, 2019, 7, 24493 DOI: 10.1039/C9TA07591G

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