fig2
Figure 2. (A-C) Variation of σ, S, and PF with temperature for devices incorporating from 0 to 1 wt% MWCNTs; (D) Variation of σ, S, and PF with MWCNTs content at room temperature. σ: Electrical conductivity; S: Seebeck coefficient; PF: power factor; MWCNTs: multi-walled carbon nanotubes.
