KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| 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 Publication | ADVANCED FUNCTIONAL MATERIALS
 |
| ISSN | 1616-301X |
| Issue | 40 |
| Subtype | Article |
| Abstract | In 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. |
| DOI | 10.1002/adfm.202004378 |
| WOS Keyword | CHARGE-TRANSPORT ; CONJUGATED POLYMERS ; HIGH-CONDUCTIVITY ; P-TYPE ; CRYSTALLINITY |
| Language | 英语 |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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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