Show simple item record Deria, P Sinks, LE Park, TH Tomezsko, DM Brukman, MJ Bonnell, DA Therien, MJ
dc.coverage.spatial United States 2011-06-21T17:27:01Z 2010-10-13
dc.identifier.citation Nano Lett, 2010, 10 (10), pp. 4192 - 4199
dc.description.abstract Use of phase transfer catalysts such as 18-crown-6 enables ionic, linear conjugated poly[2,6-{1,5-bis(3-propoxysulfonicacidsodiumsalt)}naphthylene]ethynylene (PNES) to efficiently disperse single-walled carbon nanotubes (SWNTs) in multiple organic solvents under standard ultrasonication methods. Steady-state electronic absorption spectroscopy, atomic force microscopy (AFM), and transmission electron microscopy (TEM) reveal that these SWNT suspensions are composed almost exclusively of individualized tubes. High-resolution TEM and AFM data show that the interaction of PNES with SWNTs in both protic and aprotic organic solvents provides a self-assembled superstructure in which a PNES monolayer helically wraps the nanotube surface with periodic and constant morphology (observed helical pitch length = 10 ± 2 nm); time-dependent examination of these suspensions indicates that these structures persist in solution over periods that span at least several months. Pump-probe transient absorption spectroscopy reveals that the excited state lifetimes and exciton binding energies of these well-defined nanotube-semiconducting polymer hybrid structures remain unchanged relative to analogous benchmark data acquired previously for standard sodium dodecylsulfate (SDS)-SWNT suspensions, regardless of solvent. These results demonstrate that the use of phase transfer catalysts with ionic semiconducting polymers that helically wrap SWNTs provide well-defined structures that solubulize SWNTs in a wide range of organic solvents while preserving critical nanotube semiconducting and conducting properties.
dc.format.extent 4192 - 4199
dc.language eng
dc.language.iso en_US en_US
dc.relation.ispartof Nano Lett
dc.relation.isversionof 10.1021/nl102540c
dc.title Phase transfer catalysts drive diverse organic solvent solubility of single-walled carbon nanotubes helically wrapped by ionic, semiconducting polymers.
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US 2010-10-0 en_US
duke.description.endpage 4199 en_US
duke.description.issue 10 en_US
duke.description.startpage 4192 en_US
duke.description.volume 10 en_US
dc.relation.journal Nano Letters en_US
pubs.issue 10
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Pratt School of Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Biomedical Engineering
pubs.organisational-group /Duke/School of Medicine
pubs.organisational-group /Duke/School of Medicine/Institutes and Centers
pubs.organisational-group /Duke/School of Medicine/Institutes and Centers/Duke Cancer Institute
pubs.organisational-group /Duke/Trinity College of Arts & Sciences
pubs.organisational-group /Duke/Trinity College of Arts & Sciences/Chemistry
pubs.publication-status Published
pubs.volume 10
dc.identifier.eissn 1530-6992

Files in this item

This item appears in the following Collection(s)

Show simple item record