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Related Experiment Video

Updated: Dec 17, 2025

Fabrication and Testing of Photonic Thermometers
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Highly Integrable Thermoelectric Fiber.

Haifeng Xu1, Yang Guo1, Bo Wu1

  • 1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.

ACS Applied Materials & Interfaces
|June 25, 2020
PubMed
Summary

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High-Strength, Highly Conductive, Thermally Insulating CNT-Reinforced PBO-Based Aerogel Fibers for Intelligent Textiles in Harsh Environments.

ACS applied materials & interfaces·2026

Researchers developed flexible thermoelectric (TE) fibers using poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and tellurium nanowires (Te NWs). These wearable TE fibers can be woven directly into fabrics, enhancing breathability and performance.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Energy Harvesting

Background:

  • Integrating traditional film-like thermoelectric (TE) devices onto fabrics is challenging, often requiring adhesives that compromise fabric breathability.
  • Developing flexible and wearable TE materials that can be seamlessly integrated into textiles is crucial for next-generation electronic devices.

Purpose of the Study:

  • To create a novel flexible thermoelectric fiber for direct integration into fabrics.
  • To investigate the thermoelectric properties and mechanical flexibility of the developed composite fibers.

Main Methods:

  • Fabrication of flexible TE fibers using a composite of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and tellurium nanowires (Te NWs) via a wet-spinning process.
  • Characterization of the tunable content and orientation of Te NWs within the PEDOT:PSS matrix.
Keywords:
PEDOT:PSSTe nanowiressmart fabricthermoelectric fiberwearable device

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  • Evaluation of the thermoelectric performance, including power factor and mass-specific power, and mechanical properties.

    • Main Results:

    • The developed TE fibers demonstrate tunable Te NW content and orientation.
    • Achieved a high power factor of 78.1 μW m-1 K-2 and a high mass-specific power of 9.48 μW g-1.
    • Exhibited excellent mechanical flexibility and superior integrability into fabrics through weaving.

    Conclusions:

    • The flexible TE fibers offer a promising solution for wearable thermoelectric energy harvesting.
    • Direct integration into fabrics via weaving overcomes limitations of traditional TE device attachment methods.
    • The scalable wet-spinning process and desirable performance metrics pave the way for practical applications in smart textiles.