초록 |
To create a paintable/printable thermoelectric material, comprised exclusively of organic components, polyaniline (PANi), graphene, and double-walled nanotube (DWNT), stabilized with an intrinsically conductive polymer, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), were alternately deposited from aqueous solutions using a layer-by-layer assembly. The 80 quadlayer thin film (1 µm thick), comprised of a PANi/graphene-PEDOT:PSS/PANi/DWNT-PEDOT:PSS repeating sequence, exhibits electrical conductivity (σ) of 1.88 X 106 S/m and a Seebeck coefficient (S) of 120 µV/K, producing a thermoelectric power factor (S2∙σ) of 2710 µW/(m·K2). |