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PEDOT Thin Films with n-Type Thermopower

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PEDOT Thin Films with n-Type Thermopower

dc.contributor.author	Serrano-Claumarchirant, José Francisco
dc.contributor.author	Culebras Rubio, Mario
dc.contributor.author	Muñoz-Espí, Rafael
dc.contributor.author	Cantarero Sáez, Andrés
dc.contributor.author	Gómez Clarí, Clara M.
dc.contributor.author	Collins, Maurice N.
dc.date.accessioned	2020-05-13T09:26:27Z
dc.date.available	2020-05-13T09:26:27Z
dc.date.issued	2020
dc.identifier.citation	Serrano-Claumarchirant, José Francisco Culebras Rubio, Mario Muñoz-Espí, Rafael Cantarero Sáez, Andrés Gómez Clarí, Mª Clara Collins, Maurice N. 2020 PEDOT Thin Films with n-Type Thermopower ACS Applied Energy Materials 3 861 867
dc.identifier.uri	https://hdl.handle.net/10550/74595
dc.description.abstract	The synthesis of n-type organic semiconductors is challenging as reduced states are difficult to obtain due to their instability in air. Here, we report tailoring of semiconducting behavior through control of surfactant concentration during synthesis of poly(3,4-ethylenedioxythiophene) (PEDOT) nanoparticles. Nanoparticles were synthesized by miniemulsion polymerization, where stable suspensions were used to produce polymer films by a simple casting technique on poly(ethylene terephthalate) (PET) substrates. The electrical conductivity and Seebeck coefficients were measured as a function of surfactant concentration. It was found that conductivity decreases 3 orders of magnitude as surfactant concentration increased, and remarkably the Seebeck coefficient switched from p-type to n-type. To further elucidate this finding, doping effects were studied by Raman, ultraviolet−visible (UV−vis), and electron spin resonance (EPR) spectroscopies. Finally, a thermoelectric module was developed by using the n-type PEDOT synthesized in this work and a standard p-type PEDOT:PSS.
dc.language.iso	eng
dc.relation.ispartof	ACS Applied Energy Materials, 2020, vol. 3, p. 861-867
dc.subject	Ciència dels materials
dc.subject	Conductivitat elèctrica
dc.subject	Nanotecnologia
dc.title	PEDOT Thin Films with n-Type Thermopower
dc.type	journal article	es_ES
dc.date.updated	2020-05-13T09:26:28Z
dc.identifier.doi	10.1021/acsaem.9b01985
dc.identifier.idgrec	138813
dc.rights.accessRights	open access	es_ES