Engineered Molecular Chain Ordering in Single-Walled Carbon Nanotubes/Polyaniline Composite Films for High-Performance Organic Thermoelectric Materials
Single‐walled carbon nanotubes (SWNTs)/polyaniline (PANI) composite films with enhanced thermoelectric properties were prepared by combining in situ polymerization and solution processing. Conductive atomic force microscopy and X‐ray diffraction measurements confirmed that solution processing and st...
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Published in | Chemistry, an Asian journal Vol. 11; no. 12; pp. 1804 - 1810 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
Blackwell Publishing Ltd
21.06.2016
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Single‐walled carbon nanotubes (SWNTs)/polyaniline (PANI) composite films with enhanced thermoelectric properties were prepared by combining in situ polymerization and solution processing. Conductive atomic force microscopy and X‐ray diffraction measurements confirmed that solution processing and strong π–π interactions between the PANI and SWNTs induced the PANI molecules to form a highly ordered structure. The improved degree of order of the PANI molecular arrangement increased the carrier mobility and thereby enhanced the electrical transport properties of PANI. The maximum in‐plane electrical conductivity and power factor of the SWNTs/PANI composite films reached 1.44×103 S cm−1 and 217 μW m−1 K−2, respectively, at room temperature. Furthermore, a thermoelectric generator fabricated with the SWNTs/PANI composite films showed good electric generation ability and stability. A high power density of 10.4 μW cm−2 K−1 was obtained, which is superior to most reported results obtained in organic thermoelectric modules.
PANI for your thoughts: Single‐walled carbon nanotubes (SWNTs)/polyaniline (PANI) composite films with enhanced thermoelectric properties are prepared by combining in situ polymerization and solution processing. Strong π–π interactions induce the PANI molecules to form a highly ordered structure, which improves carrier mobility and thereby enhances electrical transport. |
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Bibliography: | ark:/67375/WNG-J8R7Z9B7-Q istex:5A15C3E8896D0D09076B44CACE1A34274F893E51 Shanghai Government - No. 15JC1400301 Chinese Academy of Sciences - No. KGZD-EW-T06 ArticleID:ASIA201600212 National Basic Research Program of China - No. 2013CB632500 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1861-4728 1861-471X |
DOI: | 10.1002/asia.201600212 |