| DOI | Trouver le DOI : https://doi.org/10.1021/acsaelm.1c00584 |
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| Auteur | Rechercher : Li, Zhao1Identifiant ORCID : https://orcid.org/0000-0002-0287-2430; Rechercher : Ding, Jianfu1; Rechercher : Ouyang, Jianying1Identifiant ORCID : https://orcid.org/0000-0001-5700-9506; Rechercher : Malenfant, Patrick R. L.1Identifiant ORCID : https://orcid.org/0000-0001-5391-2300 |
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| Affiliation | - Conseil national de recherches Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Sujet | polymeric materials; thin films; carbon nanotubes; transistors; network |
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| Résumé | Conjugated polymer extraction (CPE)-enriched high-purity semiconducting (sc) single-walled carbon nanotubes (SWCNTs) have demonstrated significant application potential as emerging electronic materials. In this work, the interaction of three fluorene-based copolymers with sc-SWCNTs in a toluene solution was systematically compared, covering a wide range of concentrations while considering the phase behavior of the polymer itself. 2D photoluminescence excitation studies show that the polymer containing semiconjugated pyridine units had a higher binding affinity to the SWCNTs due to its twistable main chain conformation. The uniform and high-density SWCNT networks deposited on a silicon wafer have been characterized by SEM and spatial Raman spectroscopy, which reveals ultrahigh sc purity with a metallic tube content less than the parts per million level. The performance of thin-film transistors could be correlated with the structure of wrapping polymers. The threshold voltage shifted with the nitrogen content in their repeat units due to electron donation from the nitrogen atoms. The off-current was reduced with the flexible copolymer, which provided better wrapping and thus limited bundling during network formation. |
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| Date de publication | 2021-10-12 |
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| Maison d’édition | American Chemical Society |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 8e1c222d-f581-467c-a4c8-440e9abd1b2f |
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| Enregistrement créé | 2022-02-18 |
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| Enregistrement modifié | 2022-02-21 |
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