Self-Sorting of 10-µm-Long Single-Walled Carbon Nanotubes in Aqueous Solution

Self-Sorting of 10-µm-Long Single-Walled Carbon Nanotubes in Aqueous Solution

© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 31(2019), 33 vom: 17. Aug., Seite e1901641
1. Verfasser: Wang, Peng (VerfasserIn)
Weitere Verfasser: Barnes, Benjamin, Wu, Xiaojian, Qu, Haoran, Zhang, Chiyu, Shi, Yang, Headrick, Robert J, Pasquali, Matteo, Wang, YuHuang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article carrier mobility nanomaterials processing phase behavior superacid-surfactant exchange thin-film transistors ultralong carbon nanotubes
Beschreibung
Zusammenfassung:© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Single-walled carbon nanotubes (SWCNTs) are a class of 1D nanomaterials that exhibit extraordinary electrical and optical properties. However, many of their fundamental studies and practical applications are stymied by sample polydispersity. SWCNTs are synthesized in bulk with broad structural (chirality) and geometrical (length and diameter) distributions; problematically, all known post-synthetic sorting methods rely on ultrasonication, which cuts SWCNTs into short segments (typically <1 µm). It is demonstrated that ultralong (>10 µm) SWCNTs can be efficiently separated from shorter ones through a solution-phase "self-sorting". It is shown that thin-film transistors fabricated from long semiconducting SWCNTs exhibit a carrier mobility as high as ≈90 cm2 V-1 s-1 , which is ≈10 times higher than those which use shorter counterparts and well exceeds other known materials such as organic semiconducting polymers (<1 cm2 V-1 s-1 ), amorphous silicon (≈1 cm2 V-1 s-1 ), and nanocrystalline silicon (≈50 cm2 V-1 s-1 ). Mechanistic studies suggest that this self-sorting is driven by the length-dependent solution phase behavior of rigid rods. This length sorting technique shows a path to attain long-sought ultralong, electronically pure carbon nanotube materials through scalable solution processing
Beschreibung:Date Revised 19.07.2024
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201901641