title: AFM and STM characterization of thiol and thiophene functionalized SWNTs: pitfalls in the use of chemical markers to determine the extent of sidewall functionalization in SWNTs.
abstract: Thiol- and thiophene-functionalized SWNTs prepared via the reaction of a substituted amine with fluoronanotubes show similar levels of sidewall functionalization, however, the use of Au nanoparticles as chemical markers for AFM gives misleading results for substituent distribution since STM shows the thiol substituents grouped in bands while the thiophene substituents uniformly distributed along the SWNTs.
authors.affiliation: Department of Chemistry, Rice University, Houston, Texas 77005, USA.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.forename: Nicolaus
authors.initials: N
authors.lastname: Schmandt
authors.forename: Justin
authors.initials: J
authors.lastname: Cratty
authors.forename: Valery N
authors.initials: VN
authors.lastname: Khabashesku
authors.forename: Kevin F
authors.initials: KF
authors.lastname: Kelly
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Barron