| 초록 |
Poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate)(PEDOT:PSS), is well known for its applicability for high performance thermoelectric materials from combination of high electrical conductivity and low thermal conductivity. To fabricate thermoelectric devices that operate in the conventional π-leg configuration and maintain large temperature gradients, thermoelectric aerogels have been reported over the years. PEDOT:PSS aerogels have also been demonstrated, but the highly crystalline nature results in brittle networks, which limits the durability as thermoelectric devices. Adding plasticizers deteriorates the electrical conductivity of PEDOT:PSS aerogels, which results in lower thermoelectric performance. Here, single-crystalline graphene nanoplatelets were chosen as additives to produce mechanically stable PEDOT:PSS aerogels for thermoelectric materials. The thermoelectric performance of PEDOT:PSS/graphene aerogels are evaluated and a thermoelectric device is demonstrated. |
