期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 24, 页码 27537-27544出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c04316
关键词
washing machine proof; conductive silk yarn; Ag nanowire; PEDOT:PSS; nanocomposite
资金
- Swedish Research Council [2016-06146]
- Knut and Alice Wallenberg Foundation through a Wallenberg Academy Fellowship
- European Research Council (ERC) [637624]
- Wallenberg Wood Science Center
- National Research Foundation (NRF) of Korea - Ministry of Science, Information and Communications Technology [NRF-2018R1C1B5043900, NRF-2019K1A3A1A47000624]
- National Research Foundation of Korea [2019K1A3A1A47000624] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Electrically conducting fibers and yarns are critical components of future wearable electronic textile (e-textile) devices such as sensors, antennae, information processors, and energy harvesters. To achieve reliable wearable devices, the development of robust yarns with a high conductivity and excellent washability is urgently needed. In the present study, highly conductive and machine-washable silk yarns were developed utilizing a Ag nanowire and PEDOT:PSS composite coating. Ag nanowires were coated on the silk yarn via a dip-coating process followed by coating with the conjugated polymer:polyelectrolyte complex PEDOT:PSS. The PEDOT:PSS covered the Ag nanowire layers while electrostatically binding to the silk, which significantly improved the robustness of the yarn as compared with the Ag nanowire-coated reference yarns. The fabricated conductive silk yarns had an excellent bulk conductivity of up to similar to 320 S/cm, which is largely retained even after several cycles of machine washing. To demonstrate that these yarns can be incorporated into e-textiles, the conductive yarns were used to construct an all-textile out-of-plane thermoelectric device and a Joule heating element in a woven heating fabric.
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