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Nearly Single‐Chirality Single‐Walled Carbon Nanotubes Produced via Orthogonal Iterative Density Gradient Ultracentrifugation
Author(s) -
Green Alexander A.,
Hersam Mark C.
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201100034
Subject(s) - materials science , carbon nanotube , chirality (physics) , photodetector , optoelectronics , density gradient , transistor , temperature gradient , nanotechnology , chiral symmetry , physics , quantum mechanics , nambu–jona lasinio model , quark , voltage
We describe how iterative, orthogonal density gradient ultracentrifugation (DGU) separations can be used to produce nearly single‐chirality (6,5) SWNTs. SWNT network transistors made from these highly pure, ≥98% semiconducting SWNTs simultaneously exhibit high on/off ratios, mobilities, and on‐state conductances, suggesting their future application in integrated circuits and near‐infrared optoelectronic light emitters and photodetectors.