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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Li, Er Qiang Han, Fei Zhou, Jian Thoroddsen, Sigurdur T. Xu, Xuezhu Lubineau, Gilles Mulle, Matthieu Zhang, Yaobin |
| Copyright Year | 2016 |
| Abstract | Conductive fibers with enhanced physical properties and functionalities are needed for a diversity of electronic devices. Here, we report very high performance in the thermal and mechanical response of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) microfibers when subjected to an electrical current. These fibers were made by combining the hot-drawing assisted wetspinning process with ethylene glycol doping/de-doping that can work at a current density as high as 1.8 × 104 A cm−2, which is comparable to that of carbon nanotube fibers. Their electrothermal response was investigated using optical sensors and verified to be as fast as 63 °C s−1 and is comparable with that of metallic heating elements (20–50 °C s−1). We investigated the electromechanical actuation resulted from the reversible sorption/desorption of moisture controlled by electro-induced heating. The results revealed an improvement of several orders of magnitudes compared to other linear conductive polymer-based actuators in air. Specifically, the fibers we designed here have a rapid stress generation rate (>40 MPa s−1) and a wide operating frequency range (up to 40 Hz). These fibers have several characteristics including fast response, low-driven voltage, good repeatability, long cycle life and high energy efficiency, favoring their use as heating elements on wearable textiles and as artificial muscles for robotics. |
| Starting Page | 1238 |
| Ending Page | 1249 |
| Page Count | 12 |
| File Format | HTM / HTML PDF |
| ISSN | 20507526 |
| Volume Number | 4 |
| Issue Number | 6 |
| Journal | Journal of Materials Chemistry C |
| DOI | 10.1039/c5tc03380b |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Poly(3 4-ethylenedioxythiophene) Ethylene glycol Dopant Electric current Carbon nanotube Sorption Energy conversion efficiency |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Chemistry |
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