fig9
Figure 9. (A) TE parameters of PBEDs films that as-prepared directly by spray-spin coating polymerization method; (B) annealing time dependence of σ, S and PF of the P(BED-T) film at 120 ºC.TE:thermoelectric; BED-T: 2,5-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)thiophene.