Degenerately Doped Semi-Crystalline Polymers for High Performance Thermoelectrics
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Yeran | - |
dc.contributor.author | Park, Juhyung | - |
dc.contributor.author | Son, Jaehoon | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Kwak, Eonghun | - |
dc.date.accessioned | 2022-03-04T21:40:44Z | - |
dc.date.available | 2022-03-04T21:40:44Z | - |
dc.date.created | 2022-03-02 | - |
dc.date.issued | 2021-02 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/137787 | - |
dc.description.abstract | Thermoelectric (TE) energy conversion in conjugated polymers is considered a promising approach for low-energy harvesting and self-powered temperature sensing. To enhance the TE performance, it is necessary to understand the relationship between the Seebeck coefficient (alpha) and electrical conductivity (sigma). Typical doped polymers exhibit alpha-sigma relationship that is distinct from that of inorganic materials due to their large structural and energetic disorder, which prevents them from achieving the maximum TE power factor (PF = alpha(2)sigma). Here, an ideal alpha-sigma relationship in the Kang-Snyder model following a transport parameter s = 1 is demonstrated with two degenerately doped semi-crystalline polymers, poly[(4,4 '-(bis(hexyldecylsulfanyl)methylene)cyclopenta[2,1-b:3,4-b ']dithiophene)-alt-(benzo[c][1,2,5]thiadiazole)] (PCPDTSBT) and poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2FBT) using a sequential doping method. The results allow the realization of the PFs reaching theoretic maxima (i.e., 112.01 mu W m(-1) K-2 for PPDT2FBT and 49.80 mu W m(-1) K-2 for PCPDTSBT) and close to metallic behavior in heavily doped films. Additionally, it is shown that the PF maxima appear when the doping state switches from non-degenerate to degenerate. Strategies towards an optimal alpha-sigma relationship enable optimization of the PF and provide an understanding of the charge transport of doped polymers. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | CONDUCTING POLYMERS | - |
dc.subject | CHARGE-TRANSPORT | - |
dc.subject | ENERGY-LEVEL | - |
dc.subject | OPTIMIZATION | - |
dc.subject | AGGREGATION | - |
dc.title | Degenerately Doped Semi-Crystalline Polymers for High Performance Thermoelectrics | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1002/adfm.202006900 | - |
dc.identifier.scopusid | 2-s2.0-85096997920 | - |
dc.identifier.wosid | 000594759000001 | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.31, no.9 | - |
dc.relation.isPartOf | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 31 | - |
dc.citation.number | 9 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | AGGREGATION | - |
dc.subject.keywordPlus | CHARGE-TRANSPORT | - |
dc.subject.keywordPlus | CONDUCTING POLYMERS | - |
dc.subject.keywordPlus | ENERGY-LEVEL | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordAuthor | Kang& | - |
dc.subject.keywordAuthor | #8211 | - |
dc.subject.keywordAuthor | Snyder model | - |
dc.subject.keywordAuthor | charge transport | - |
dc.subject.keywordAuthor | doping | - |
dc.subject.keywordAuthor | organic thermoelectrics | - |
dc.subject.keywordAuthor | polymers | - |
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