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Recovered Bandgap Absorption of Single‐Walled Carbon Nanotubes in Acetone and Alcohols
Author(s) -
Cao A.,
Talapatra S.,
Choi Y.,
Vajtai R.,
Ajayan P. M.,
Filin A.,
Persans P.,
Rubio A.
Publication year - 2005
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.200400113
Subject(s) - materials science , acetone , carbon nanotube , absorption (acoustics) , band gap , nanotechnology , chemical engineering , carbon fibers , absorption band , photochemistry , organic chemistry , optoelectronics , composite material , optics , chemistry , composite number , physics , engineering
The bandgap optical absorption of single‐walled carbon nanotubes (SWNTs) is significantly enhanced by acetone and alcohols. Based on their ability to strip off adsorbates from the nanotube surfaces, these solvents can almost fully recover the optical absorption (see Figure). The distinct absorption recovery can be used to characteristically distinguish a variety of organic solvents, and may find application in chemical sensors.