Interfacial engineering of flexible AgSnS on carbon fabric for enhanced wearable thermoelectric generator.

J Colloid Interface Sci

Center of Excellence in Materials and Advanced Technology (CeMAT), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamil Nadu, India; Nanotechnology Research Center, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamil Nadu, India. Electronic address:

Published: February 2025

AI Article Synopsis

  • Smart wearable devices need rechargeable batteries, which is a major drawback in the tech.
  • Researchers are exploring flexible thermoelectric materials that can convert body heat into usable energy as a viable alternative.
  • By using a special technique to add AgSnS to carbon fabric, they created a flexible thermoelectric material that shows significantly improved performance, with a maximum power factor of 110 μW/mK.

Article Abstract

Smart wearable devices are still powered by batteries requiring constant recharging, which is a key challenge faced in wearable technologies. Fabrication of flexible thermoelectric materials that can utilize body heat for wearable applications are an attractive alternative to batteries. Developing a thermoelectric material that is flexible, affordable, and has good performance remains a considerable challenge owing to the constrained thermoelectric efficiency of conducting polymers and the inherent rigidity of inorganic materials. Here, we have used a solvothermal technique to incorporate AgSnS into conductive carbon fabric as a flexible thermoelectric material. To further enhance its thermoelectric performance, various concentrations of AgSnS are grown on carbon fabric. The monoclinic phase of AgS on carbon fabric was verified by XRD analysis. After analyzing the thermoelectric characteristics of AgSnS, a maximum power factor of 110 μW/mK was observed for the SSS8 sample. This value is four times higher than the percentage of pristine AgS-CF. The W-TEG device fabricated using 3 pair modules produced an output voltage ranging from 0.09 to 1.5 mV across a temperature gradient of 3 to 8 K.

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http://dx.doi.org/10.1016/j.jcis.2024.10.082DOI Listing

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