Stable n-type thermoelectric multilayer thin films with high power factor from carbonaceous nanofillers

High power factor n-type organic thermoelectric nanocomposites are assembled by alternately depositing double walled-nanotubes (DWNT), stabilized by polyethyleneimine (PEI), and graphene stabilized by polyvinylpyrrolidone (PVP), from water using the layer-by-layer (LbL) assembly technique. This unique combination of carbon nanomaterials exhibits an electrical conductivity of 300 S cm(-1) and a relatively stable power factor of 190 mu W m(-1) K-2 at room temperature. (C) 2016 The Authors. Published by Elsevier Ltd.