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Dispersion of carbon nanotubes using an azobenzene derivative
Author(s) -
Bluemmel Pascal,
Setaro Antonio,
Popeney Chris S.,
Haag Rainer,
Reich Stephanie
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201000560
Subject(s) - carbon nanotube , azobenzene , dispersion (optics) , materials science , sodium dodecyl sulfate , adsorption , photoluminescence , absorption (acoustics) , derivative (finance) , aqueous solution , nanotube , absorption spectroscopy , chemical engineering , optical properties of carbon nanotubes , photochemistry , nanotechnology , chemistry , organic chemistry , optics , composite material , optoelectronics , physics , engineering , financial economics , economics , polymer
Aqueous dispersions of carbon nanotubes (CNTs) were obtained by noncovalent adsorption of an azobenzene derivative carrying polyglycerol dendric structures. UV/Vis absorption spectra and photoluminescence maps were recorded to confirm successful nanotube debundling and suspension. Comparison to dispersion of nanotubes using sodium dodecyl sulfate (SDS) revealed shifts of the nanotube E 22 excitation peaks from 28 to 67 meV as well as shifts from 21 to 37 meV of the E 11 emission peaks.