Electrospinning of BCNNTs/PVA/PEDOT composite nanofibers films for research thermoelectric performance

In recent years, the thermoelectric properties of one-dimensional boron nitride nanomaterials have gradually attracted widespread attention of researchers in the world. In this paper, boron carbon nitrogen based composite nanofiber films were prepared by electrospinning. It is found that the diameter of nanofibers decreases in BCNNTs/PVA/PEDOT composite films when electrospinning voltage rises, while diameter increases as PVA and BCNNTs concentration increase of electrospinning precursor solution. Finally, thermoelectric power factor is investigated of the composite nanofiber films. It is verified that thermoelectric properties of the films closely related to electrospinning quality. However, fiber density of single-layer BCNNTs/PVA/PEDOT nanofiber film is too low, folding increase the density and thickness of multilayer BCNNTs/PVA/PEDOT nanocomposite fiber films, and the thermoelectric characteristics are significantly improved. The Seebeck coefficient can reach 3.62 mV/K and the power factor is 29.09 nW/mK(2).

Automated summary

In this study, composite nanofiber films based on boron carbon nitrogen were prepared by electrospinning, and it was found that the diameter of nanofibers changed with electrospinning voltage and precursor solution concentration. The thermoelectric properties of the films were closely related to the electrospinning quality, with significant improvements in thermoelectric characteristics observed in multilayer nanocomposite fiber films.