Significant Electronic Thermal Transport in the Conducting Polymer Poly(3,4-ethylenedioxythiophene)

• Published in: Advanced materials (Weinheim) Vol. 27; no. 12; pp. 2101 - 2106
• Main Authors: Weathers, Annie, Khan, Zia Ullah, Brooke, Robert, Evans, Drew, Pettes, Michael T., Andreasen, Jens Wenzel, Crispin, Xavier, Shi, Li
• Format: Journal Article
• Language: English
• Published: Germany Blackwell Publishing Ltd 25.03.2015
• Subjects: 4-ethylenedioxythiophene; Conducting polymers; Electrical conductivity; Electrical resistivity; Electronics; Heat transfer; poly; poly(3,4‐ethylenedioxythiophene); Resistivity; Thermal conductivity; thermoelectric materials; Transport; Wiedemann-Franz law; thermoelectric materials; conducting polymers; thermal conductivity; poly(3,4-ethylenedioxythiophene); Wiedemann-Franz law; poly; 4-ethylenedioxythiophene
• ISSN: 0935-9648; 1521-4095; 1521-4095
• DOI: 10.1002/adma.201404738

Suspended microdevices are employed to measure the in‐plane electrical conductivity, thermal conductivity, and Seebeck coefficient of suspended poly(3,4‐ethylenedioxythiophene) (PEDOT) thin films. The measured thermal conductivity is higher than previously reported for PEDOT and generally increases with the electrical conductivity. The increase exceeds that predicted by the Wiedemann–Franz law for metals and can be explained by significant electronic thermal transport in PEDOT.