Completely organic multilayer thin film with thermoelectric power factor rivaling inorganic tellurides.

Composed exclusively of organic components, polyaniline (PANi), graphene, and double-walled nanotubes (DWNTs) are alternately deposited from aqueous solutions using a layer-by-layer assembly. The 40 quadlayer thin film (470 nm thick) exhibits electrical conductivity of 1.08 × 10(5) S m(-1) and a Seebeck coefficient of 130 µV K(-1) , producing a thermoelectric power factor of 1825 µW m(-1) K(-2) .