title: Self-assembly of C60, SWNTs and few-layer graphene and their binary composites at the organic-aqueous interface.
abstract: Self-assembly of C(60), single-walled carbon nanotubes (SWNTs) and few-layer graphene at the toluene-water interface has been investigated, starting with different concentrations of the nanocarbons in the organic phase and carrying out the assembly to different extents. Morphologies and structures of the films formed at the interface have been investigated by electron microscopy and other techniques. In the case of C(60), the films exhibit hcp and fcc structures depending on the starting concentration in the organic phase, the films being single crystalline under certain conditions. Self-assembly of the composites formed by pairs of nanocarbons (C(60)-SWNT, C(60)-few-layer graphene and SWNT-few-layer graphene) at the interface has been studied by electron microscopy. Raman spectroscopy and electronic absorption spectroscopy of the films formed at the interface have revealed the occurrence of charge-transfer interaction between SWNTs and C(60) as well as between few-layer graphene and C(60).
authors.affiliation: CSIR Center of Excellence and International Centre for Materials Science, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India.
authors.forename: Piyush
authors.initials: P
authors.lastname: Chaturbedy
authors.forename: H S S Ramakrishna
authors.initials: HS
authors.lastname: Matte
authors.forename: Rakesh
authors.initials: R
authors.lastname: Voggu
authors.forename: A
authors.initials: A
authors.lastname: Govindaraj
authors.forename: C N R
authors.initials: CN
authors.lastname: Rao