fig6

Figure 6. (A) Schematic diagram of the 3D Percolation Network constructed by MWCNTs in Bi_0.5Sb_1.5Te₃-MWCNTs composite film; (B) Schematic illustration showing densely distributed heterojunction sites within the composite; (C) Radar plot comparing the thermoelectric performance of thin films prepared by various fabrication methods. MWCNTs: multi-walled carbon nanotubes; PLD: pulsed laser deposition.