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Synergistically Improved Molecular Doping and Carrier Mobility by Copolymerization of Donor-Acceptor and Donor-Donor Building Blocks for Thermoelectric Application
Li, H; Song, J; Xiao, J; Wu, LL; Katz, HE; Chen, LD
2020-10-01
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Issue40
SubtypeArticle
AbstractIn this work, it is demonstrated that random copolymerization is a simple but effective strategy to obtain new conductive copolymers as high-performance thermoelectric materials. By using a polymerizing acceptor unit diketopyrropyrrole with donor units thienothiophene and oligo ethylene glycol substituted bithiophene (g(3)2T), it is found that strong interchain donor-acceptor interactions ensure good film crystallinity for charge transport, while donor-donor type building blocks contribute to effective charge transfers. Hall effect measurements show that the high electrical conductivity results from increased free carriers with simultaneously improved mobility reaching over 1 cm(2)V(-1)s(-1). The synergistic effect of improved molecular doping and carrier mobility, as well as a high Seebeck coefficient ascribed to the structural disorder along polymer chains via random copolymerization, results in an impressive power factor up to 110 mu W K(-2)m(-1)which is 10 times higher than that of solution-processed polythiophenes.
DOI10.1002/adfm.202004378
WOS KeywordCHARGE-TRANSPORT ; CONJUGATED POLYMERS ; HIGH-CONDUCTIVITY ; P-TYPE ; CRYSTALLINITY
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27824
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Li, H,Song, J,Xiao, J,et al. Synergistically Improved Molecular Doping and Carrier Mobility by Copolymerization of Donor-Acceptor and Donor-Donor Building Blocks for Thermoelectric Application[J]. ADVANCED FUNCTIONAL MATERIALS,2020(40).
APA Li, H,Song, J,Xiao, J,Wu, LL,Katz, HE,&Chen, LD.(2020).Synergistically Improved Molecular Doping and Carrier Mobility by Copolymerization of Donor-Acceptor and Donor-Donor Building Blocks for Thermoelectric Application.ADVANCED FUNCTIONAL MATERIALS(40).
MLA Li, H,et al."Synergistically Improved Molecular Doping and Carrier Mobility by Copolymerization of Donor-Acceptor and Donor-Donor Building Blocks for Thermoelectric Application".ADVANCED FUNCTIONAL MATERIALS .40(2020).
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