Fig. 5. (a) The electrical conductivity and Seebeck coefficients, (b) power factor of the PEDOT:PSS/PANI-CSA ML thin films at different layer thickness. The t1 in the figure shows the thickness of one PEDOT:PSS/PANI-CSA layer. (c and d) Schematics of the PEDOT:PSS/PANI-CSA ML thin films at different thickness. When the thickness of each layer decreases, the TE performances are enhanced through the removal of PSS from the PEDOT:PSS layer.
