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dc.contributor.authorVillalva, Diego Rosas
dc.contributor.authorHaque, Mohammed
dc.contributor.authorNugraha, Mohamad
dc.contributor.authorBaran, Derya
dc.date.accessioned2020-08-10T12:45:07Z
dc.date.available2020-08-10T12:45:07Z
dc.date.issued2020-07-28
dc.identifier.citationVillalva, D. R., Haque, M. A., Nugraha, M., & Baran, D. (2020). Enhanced Thermoelectric Performance and Lifetime in Acid-Doped PEDOT:PSS Films via Work Function Modification. ACS Applied Energy Materials. doi:10.1021/acsaem.0c01511
dc.identifier.issn2574-0962
dc.identifier.issn2574-0962
dc.identifier.doi10.1021/acsaem.0c01511
dc.identifier.urihttp://hdl.handle.net/10754/664539
dc.description.abstractIn recent years, most of the work on p-type organic thermoelectrics focus on improving the thermoelectric properties of PEDOT:PSS through a sequential doping-dedoping process. However, the air-stability of thermoelectric parameters of these systems, which is essential for the realization of reliable devices remains largely unexplored. In this study, Poly (ethyleneimine)-ethoxylate (PEIE) acts as a work function modification agent and encapsulation layer to improve the thermoelectric performance and air-stability of nitric acid (HNO3) doped PEDOT:PSS films. The evaporation of HNO3 is responsible for a simultaneous decrease in electrical conductivity and an increase in the Seebeck coefficient leading to the degradation of the power factor. PEIE reduces the evaporation of HNO3 from PEDOT:PSS, and increases the power factor from 72 to 168 μW m-1K-2. After a week of exposure to air, the films show a power factor of 124 μW m-1K-2, retaining 74% of its initial thermoelectric merits. These results underscore the importance of PEIE as a material for enhancing thermoelectric performance and air-stability in the development of polymer-based thermoelectrics.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsaem.0c01511
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsaem.0c01511.
dc.titleEnhanced Thermoelectric Performance and Lifetime in Acid-Doped PEDOT:PSS Films via Work Function Modification
dc.typeArticle
dc.contributor.departmentKing Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, KAUST Solar Center (KSC), Thuwal 23955-6900, Saudi Arabia.
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentMaterial Science and Engineering
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalACS Applied Energy Materials
dc.eprint.versionPost-print
kaust.personVillalva, Diego Rosas
kaust.personHaque, Mohammed
kaust.personNugraha, Mohamad
kaust.personBaran, Derya
refterms.dateFOA2020-08-10T13:03:09Z


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