Enhanced n-Doping Efficiency of a Naphthalenediimide-Based Copolymer through Polar Side Chains for Organic Thermoelectrics

Handle URI:
http://hdl.handle.net/10754/626857
Title:
Enhanced n-Doping Efficiency of a Naphthalenediimide-Based Copolymer through Polar Side Chains for Organic Thermoelectrics
Authors:
Kiefer, David; Giovannitti, Alexander; Sun, Hengda; Biskup, Till ( 0000-0003-2913-0004 ) ; Hofmann, Anna; Koopmans, Marten; Cendra, Camila; Weber, Stefan; Anton Koster, L. Jan ( 0000-0002-6558-5295 ) ; Olsson, Eva; Rivnay, Jonathan; Fabiano, Simone ( 0000-0001-7016-6514 ) ; McCulloch, Iain ( 0000-0002-6340-7217 ) ; Müller, Christian ( 0000-0001-7859-7909 )
Abstract:
N-doping of conjugated polymers either requires a high dopant fraction or yields a low electrical conductivity because of their poor compatibility with molecular dopants. We explore n-doping of the polar naphthalenediimide–bithiophene copolymer p(gNDI-gT2) that carries oligoethylene glycol-based side chains and show that the polymer displays superior miscibility with the benzimidazole–dimethylbenzenamine-based n-dopant N-DMBI. The good compatibility of p(gNDI-gT2) and N-DMBI results in a relatively high doping efficiency of 13% for n-dopants, which leads to a high electrical conductivity of more than 10–1 S cm–1 for a dopant concentration of only 10 mol % when measured in an inert atmosphere. We find that the doped polymer is able to maintain its electrical conductivity for about 20 min when exposed to air and recovers rapidly when returned to a nitrogen atmosphere. Overall, solution coprocessing of p(gNDI-gT2) and N-DMBI results in a larger thermoelectric power factor of up to 0.4 μW K–2 m–1 compared to other NDI-based polymers.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Solar Center (KSC)
Citation:
Kiefer D, Giovannitti A, Sun H, Biskup T, Hofmann A, et al. (2018) Enhanced n-Doping Efficiency of a Naphthalenediimide-Based Copolymer through Polar Side Chains for Organic Thermoelectrics. ACS Energy Letters: 278–285. Available: http://dx.doi.org/10.1021/acsenergylett.7b01146.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Energy Letters
Issue Date:
5-Jan-2018
DOI:
10.1021/acsenergylett.7b01146
Type:
Article
ISSN:
2380-8195; 2380-8195
Sponsors:
We gratefully acknowledge financial support from the Swedish Research Council through Grant No. 2016-06146, the Knut and Alice Wallenberg Foundation through a Wallenberg Academy Fellowship, and the European Research Council (ERC) under Grant Agreement No. 637624. S.F. gratefully acknowledges support from VINNOVA (2015-04859) and the Swedish Research Council (2016-03979). Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.
Additional Links:
http://pubs.acs.org/doi/10.1021/acsenergylett.7b01146
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Solar Center (KSC)

Full metadata record

DC FieldValue Language
dc.contributor.authorKiefer, Daviden
dc.contributor.authorGiovannitti, Alexanderen
dc.contributor.authorSun, Hengdaen
dc.contributor.authorBiskup, Tillen
dc.contributor.authorHofmann, Annaen
dc.contributor.authorKoopmans, Martenen
dc.contributor.authorCendra, Camilaen
dc.contributor.authorWeber, Stefanen
dc.contributor.authorAnton Koster, L. Janen
dc.contributor.authorOlsson, Evaen
dc.contributor.authorRivnay, Jonathanen
dc.contributor.authorFabiano, Simoneen
dc.contributor.authorMcCulloch, Iainen
dc.contributor.authorMüller, Christianen
dc.date.accessioned2018-01-28T07:01:36Z-
dc.date.available2018-01-28T07:01:36Z-
dc.date.issued2018-01-05en
dc.identifier.citationKiefer D, Giovannitti A, Sun H, Biskup T, Hofmann A, et al. (2018) Enhanced n-Doping Efficiency of a Naphthalenediimide-Based Copolymer through Polar Side Chains for Organic Thermoelectrics. ACS Energy Letters: 278–285. Available: http://dx.doi.org/10.1021/acsenergylett.7b01146.en
dc.identifier.issn2380-8195en
dc.identifier.issn2380-8195en
dc.identifier.doi10.1021/acsenergylett.7b01146en
dc.identifier.urihttp://hdl.handle.net/10754/626857-
dc.description.abstractN-doping of conjugated polymers either requires a high dopant fraction or yields a low electrical conductivity because of their poor compatibility with molecular dopants. We explore n-doping of the polar naphthalenediimide–bithiophene copolymer p(gNDI-gT2) that carries oligoethylene glycol-based side chains and show that the polymer displays superior miscibility with the benzimidazole–dimethylbenzenamine-based n-dopant N-DMBI. The good compatibility of p(gNDI-gT2) and N-DMBI results in a relatively high doping efficiency of 13% for n-dopants, which leads to a high electrical conductivity of more than 10–1 S cm–1 for a dopant concentration of only 10 mol % when measured in an inert atmosphere. We find that the doped polymer is able to maintain its electrical conductivity for about 20 min when exposed to air and recovers rapidly when returned to a nitrogen atmosphere. Overall, solution coprocessing of p(gNDI-gT2) and N-DMBI results in a larger thermoelectric power factor of up to 0.4 μW K–2 m–1 compared to other NDI-based polymers.en
dc.description.sponsorshipWe gratefully acknowledge financial support from the Swedish Research Council through Grant No. 2016-06146, the Knut and Alice Wallenberg Foundation through a Wallenberg Academy Fellowship, and the European Research Council (ERC) under Grant Agreement No. 637624. S.F. gratefully acknowledges support from VINNOVA (2015-04859) and the Swedish Research Council (2016-03979). Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/10.1021/acsenergylett.7b01146en
dc.rightsThis is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.en
dc.rights.urihttp://pubs.acs.org/page/policy/authorchoice_termsofuse.htmlen
dc.titleEnhanced n-Doping Efficiency of a Naphthalenediimide-Based Copolymer through Polar Side Chains for Organic Thermoelectricsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.identifier.journalACS Energy Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Göteborg, Swedenen
dc.contributor.institutionDepartment of Chemistry and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, United Kingdomen
dc.contributor.institutionLaboratory of Organic Electronics, Department of Science and Technology, Linköping University, 601 74 Norrköping, Swedenen
dc.contributor.institutionInstitut für Physikalische Chemie, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germanyen
dc.contributor.institutionZernike Institute for Advanced Materials, 9747 AG Groningen, The Netherlandsen
dc.contributor.institutionDepartment of Materials Science and Engineering, Stanford University, Stanford, California 94304, United Statesen
dc.contributor.institutionDepartment of Physics, Chalmers University of Technology, 412 96 Göteborg, Swedenen
dc.contributor.institutionDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60035, United Statesen
kaust.authorMcCulloch, Iainen
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