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

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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

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Publication details

The article was received on 14 Jul 2019, accepted on 30 Sep 2019 and first published on 03 Oct 2019


Article type: Paper
DOI: 10.1039/C9TA07591G
J. Mater. Chem. A, 2019, Advance Article
  • Open access: Creative Commons BY-NC license
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    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, Advance Article , DOI: 10.1039/C9TA07591G

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