Simultaneous enhancement of conductivity and Seebeck coefficient of PEDOT:PSS by triflic acid treatment for flexible thermoelectric generator

Conducting poly(3,4-ethylenedioxythiophene) materials with sustainable carrageenan counter-ions and their thermoelectric properties

“…43 The data given in Table 5 show that, in general, the values are of the same order – if somewhat lower in magnitude – to the Seebeck coefficient and electrical conductivity of pristine PEDOT:PSS (15–18 μV K −1 and 0.2–1 S cm −1 ). 44,45 Nonetheless, these results do show that materials with thermoelectric properties similar to the standard material can be achieved using a more sustainable counter-ion to the conducting polymer component.…”

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

“…Actually, in spite of the reduction in σ of the PP/ CuO NG system relative to the PP/GR and PP/NG systems, its σ still greater than that of a large number of reported composites (for example, σ ‖ ∼ 25 S cm −1 for rGO/Sb 2 Te 3 /SV4/PP which is prepared by the screen printing technology 43 and σ ‖ ∼ 18 S cm −1 for PP/SnSe 0.97 Te 0.03 44 ). But it is still smaller than that of σ ‖ ∼ 1036 S cm −1 for PP/GQDs/SWCNTs, 45 σ ‖ ∼ 1000 S cm −1 for PP/Bi 2 Te 3 NWs treated with polar solvent vapor annealing, 46 σ ‖ ∼ 1686 S cm −1 for PP which is treated with triflic acid/trifluoromethanesulfonic acid, 47 σ ‖ ∼ 2213 ± 23 S cm −1 for PP/Xuan paper which is prepared by dip-coating and the subsequent drying process 48 and σ ‖ ∼ 596 ± 14 S cm −1 for PP film which is annealed at 220 °C for 12 h 49 chiefly for the reported composites that were post-treated with polar solvents which are able to remove a large amount of PSS.…”

Fabrication of Bismuth–Antimony–Telluride Alloy/Poly(3,4-ethylenedioxythiophene) Hybrid Films for Thermoelectric Applications at Room Temperature by a Simple Electrochemical Process

“…Most inorganic TE materials have optimum values in the high-temperature region, but impurity-containing bismuth telluride (Bi 2 Te 3 ) or Bi 2 Te 3 has a high ZT value at relatively low temperatures due to its band structure. Bi 2 Te 3 exhibits a ZT value close to 1.0 at 400 K. , The introduction of Sb into the alloy to form Bi 0.5 Sb 1.5 Te 3 (BST) increases the number of grain boundaries. ,, The BST alloy shows a positive Seebeck coefficient, which means that the main charge carriers are holes. ,, This Seebeck coefficient value is in the same range as that achieved for pure BST films synthesized by electrochemical deposition . The PF of the BST/PEDOT composite films was calculated from the electrical conductivity and the Seebeck coefficient (black (•) and blue (■) lines in Figure a).…”

“…Bi 2 Te 3 exhibits a ZT value close to 1.0 at 400 K. 46,47 The introduction of Sb into the alloy to form Bi 0.5 Sb 1.5 Te 3 (BST) increases the number of grain boundaries. 5,48,49 The BST alloy shows a positive Seebeck coefficient, which means that the main charge carriers are holes. 2,26,50 This Seebeck coefficient value is in the same range as that achieved for pure BST films synthesized by electrochemical deposition.…”