Journal
JOURNAL OF POWER SOURCES
Volume 480, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2020.228836
Keywords
E-Textiles; Organic electronics; Energy harvesting; Thermoelectrics
Funding
- Knut and Alice Wallenberg Foundation through a Wallenberg Academy Fellowship
- European Research Council (ERC) [637624]
- European Research Council (ERC) [637624] Funding Source: European Research Council (ERC)
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Conducting polymers offer new opportunities to design soft, conformable and light-weight thermoelectric textile generators that can be unobtrusively integrated into garments or upholstery. Using the widely available conducting polymer:polyelectrolyte complex poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT: PSS) as the p-type material, we have prepared an electrically conducting sewing thread, which we then embroidered into thick wool fabrics to form out-of-plane thermoelectric textile generators. The influence of device design is discussed in detail, and we show that the performance of e-textile devices can be accurately predicted and optimized using modeling developed for conventional thermoelectric systems, provided that the electrical and thermal contact resistances are included in the model. Finally, we demonstrate a thermoelectric textile device that can generate a, for polymer-based devices, unprecedented power of 1.2 OW at a temperature gradient AT of 65 K, and over 0.2 OW at a more modest AT of 30 K.
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