A high performance flexible and robust printed thermoelectric generator based on hybridized Te nanowires with PEDOT:PSS

Preparation and Characterization of Thermoelectric PEDOT/Te Nanorod Array Composite Films

“…The S value of the PEDOT/Te composite film was positive, indicating that the resulting films were p-type conducting semiconductors. The S value decreased with increasing PEDOT deposition time, from 340 μV/K at 15 s to 80 μV/K at 120 s, whereas the σ value showed an opposite trend, which was a typical behavior of thermoelectric materials because of the trade-off relationship between S and σ [ 15 ]. During polymerization of PEDOT onto Te nanorods, the interaction between the π interaction from the PEDOT and van der Waals force from the Te nanorods at the interface of the polymer/Te crystal, lead to enhanced interfacial adhesion between the two phases.…”

“…It was found that there was a synergetic effect between the two components in composite materials. This PF value was higher than that of the previously reported PEDOT:PSS/Te nanostructure-based composites, such as the PEDOT:PSS/Te nanorod composite films (51.4 µW/mK 2 [ 13 ]), PEDOT:PSS/Te nanowire hybrid composites (106 µW/mK 2 [ 36 ]), PEDOT:PSS coated Te nanorod/PEDOT:PSS composite film (141.9 µW/mK 2 [ 14 ]), PEDOT:PSS/Te nanowire-based TE hybrid ink (102.42 µW/mK 2 ) [ 15 ]), reduced graphene oxide/PEDOT:PSS/Te nanowire hybrid film (143 µW/mK 2 [ 37 ]), and PEDOT:PSS/Te double-layer thin film (126.2 µW/mK 2 [ 20 ]). The outstanding PF of the PEDOT/Te composite film in this study was likely ascribed to the strong interaction between the PEDOT and Te nanorod arrays caused by the carrier energy filtering effect, as well as to the electrochemical polymerization process, which enabled the two components to obtain a strong interfacial adhesion.…”

“…Meng et al fabricated a PEDOT:PSS-coated Te nanorod/PEDOT:PSS composite film using a drop-casting technique, and H 2 SO 4 treatment was employed to improve the thermoelectric properties [ 14 ]. Karalis et al demonstrated a water-based scalable synthetic method for the fabrication of a thermoelectric hybrid ink consisting of Te nanowires and PEDOT:PSS [ 15 ]. These methods usually use solution-based synthesis techniques such as the solvothermal method, polyol process, and hydrothermal method to synthesize Te nanostructures, which produce suspended nanostructures that require further processing when used to fabricate nanodevices [ 16 ].…”

A ferromagnetic composite of PEDOT:PSS and nitrogen-graphene decorated with copper oxide nanoparticles with high anisotropic thermoelectric properties

“…The rapid emergence and evolution of flexible electronic devices have increased the demand for sustainable and renewable energy harvesting and conversion. 1 Due to their high efficiency and flexible properties, thermoelectric (TE) materials have become a hot topic for sustainable and renewable energy conversion. 2 Currently, the wireless sensor networks used for the internet infrastructure are powered by batteries.…”

3R Composites: Knockdown Effect Assessment and Repair Efficiency via Mechanical and NDE Testing

“…The prerequisites for advanced composites, apart from high specific properties, are typically high fracture toughness and good fatigue performance. On the other hand, advanced functionalities include structural health monitoring (SHM) capability [5][6][7], electromagnetic shielding [8], energy harvesting [9][10][11][12], and self-healing capability [13][14][15][16][17][18][19].…”