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Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites
Tang, JH; Chen, RS; Chen, LD; Bazan, GC; Liang, ZQ
2020-05-21
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Issue19Pages:9797
SubtypeArticle
Abstractn-Type semiconducting polymers bearing high Seebeck coefficients (S) have been seldom employed in organic-inorganic thermoelectric nanocomposites (TENCs). Herein we illustrate how to exploit an n-type semiconducting polymer to fabricate TENCs comprising N2200 and metallic Co NWs, in which N2200 contributes significantly to the S of the TENCs. The TENCs exhibit a highest power factor (PF) of 288 mu W m(-1) K-2 at 80 wt% Co NWs. At a greater Co NW content, the organic/inorganic inter-connectivity deteriorates, owing to the rigid molecular chains of N2200, retarding the increase of electrical conductivity (sigma) and also undermining the mechanical flexibility. Flexible n-type doped SWCNTs were therefore added to introduce additional conductive paths. At an optimal amount of SWCNTs (2 wt%), the sigma increases to 1860 S cm(-1), whereas S remains at approximately -45 mu V K-1 and the bendability is improved. The maximal PF and zT values of the resulting ternary TENC reach 483 mu W m(-1) K-2 and 0.18 at 380 K, respectively. By pairing with p-type PEDOT:PSS/SWCNT thin films, the 6-legged flexible TEG yields maximum output voltage and power of 9.80 mV and 3.72 mu W, respectively, when Delta T = 50 K. This work manifests a new avenue to both highly efficient and bendable thermoelectric materials through the judicious choice of multiple blend components.
DOI10.1039/d0ta02388d
WOS KeywordCOMPOSITES ; POWER ; FILMS
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28046
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Tang, JH,Chen, RS,Chen, LD,et al. Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020(19):9797.
APA Tang, JH,Chen, RS,Chen, LD,Bazan, GC,&Liang, ZQ.(2020).Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites.JOURNAL OF MATERIALS CHEMISTRY A(19),9797.
MLA Tang, JH,et al."Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites".JOURNAL OF MATERIALS CHEMISTRY A .19(2020):9797.
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