|Experimental investigation of the dependence of the thermoelectric performance of carbon nanotubes/polymer nanocomposites on the synthesis protocol|
|Year of publication||2020|
|Title of paper||Experimental investigation of the dependence of the thermoelectric performance of carbon nanotubes/polymer nanocomposites on the synthesis protocol|
|Authors||Kang, S.-W., Kim, S., Cho, C., and Choi, K.|
|Pages||035001 - 1 - 9|
|Journal||Functional Composites and Structures|
In this study, experiments were carried out to determine the mechanism of enhanced electron transport through segregated pathways formed using different synthesis protocols of nanocomposites obtained by the addition of nanocarbon-based fillers (i.e., CNTs) inside a polymer matrix. Studies of the different types of fillers and polymer matrices, filler concentrations, and the use of additional additives enabled an in-depth understanding of the effect of each factor on the thermoelectric performance of the nanocomposites. First, because of their intrinsic material characteristics, the use of TWCNTs as a filler and electrically conductive polymers (e.g., PEDOT:PSS) as a matrix instead of MWCNTs and insulating polymers (e.g., PVA), respectively, leads to the enhancement in the electrical conductivity. In addition, it has been demonstrated that higher concentrations of CNTs that are sufficient to form a percolation network and the use of additional additives (e.g., DMSO) make large contributions to the electron transport enhancement. It was also found that in addition to the influence of the intrinsic properties of the material, the dispersion during the synthesis process and the structural characteristics inside the material have a complex effect on the Seebeck coefficient.