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September 24, 2025ACS Applied Materials & Interfaces

Wearable Thermoelectric Generators Based on Flexible Ag2Se/PVDF Films: Influence of Film Geometry and Wind on Energy Harvesting

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Authors

NKNayeon KimUniversity of Maryland, BaltimoreJWJong‐In WonHongik UniversityYMYeongjun MunBIO Intelligence Service (France)

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Implication

This study demonstrates improved thermal conductivity and output in wearable thermoelectric generators, suggesting new design strategies.

Key Points

  • A flexible Ag2Se/PVDF composite film achieved a thermoelectric figure of merit of 0.591 at room temperature, enhancing energy harvesting efficiency.
  • The incorporation of 5 wt % PVDF into the Ag2Se film significantly improved bending radius from 6 mm to 3.5 mm while surviving over 1000 cycles.
  • Use of this composite material in wearable devices enabled power generation from a mere 10 °C temperature difference under airflow.
  • Integration with carbon nanotubes led to a device design optimized for efficient low-grade thermal energy harvesting.

Cite This Study

Kim et al. (2025) studied this question.

synapsesocial.com/papers/68d6d8548b2b6861e4c3e4c7https://doi.org/10.1021/acsami.5c15434
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