title: Preserving π-conjugation in covalently functionalized carbon nanotubes for optoelectronic applications.
abstract: Covalent functionalization tailors carbon nanotubes for a wide range of applications in varying environments. Its strength and stability of attachment come at the price of degrading the carbon nanotubes sp2network and destroying the tubes electronic and optoelectronic features. Here we present a non-destructive, covalent, gram-scale functionalization of single-walled carbon nanotubes by a new [2+1] cycloaddition. The reaction rebuilds the extended π-network, thereby retaining the outstanding quantum optoelectronic properties of carbon nanotubes, including bright light emission at high degree of functionalization (1 group per 25 carbon atoms). The conjugation method described here opens the way for advanced tailoring nanotubes as demonstrated for light-triggered reversible doping through photochromic molecular switches and nanoplasmonic gold-nanotube hybrids with enhanced infrared light emission.
authors.affiliation: Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany.
authors.forename: Antonio
authors.initials: A
authors.lastname: Setaro
authors.affiliation: Faculty of Science, Department of Chemistry, Lorestan University, Khorram Abad 68151-44316, Iran.|Institute of Chemistry and Biochemistry, Free University Berlin, 14195 Berlin, Germany.
authors.forename: Mohsen
authors.initials: M
authors.lastname: Adeli
authors.affiliation: Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany.
authors.forename: Mareen
authors.initials: M
authors.lastname: Glaeske
authors.affiliation: Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany.
authors.forename: Daniel
authors.identifier: 0000-0002-8358-6582
authors.initials: D
authors.lastname: Przyrembel
authors.affiliation: Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany.
authors.forename: Timo
authors.identifier: 0000-0001-8147-4010
authors.initials: T
authors.lastname: Bisswanger
authors.affiliation: Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany.
authors.forename: Georgy
authors.initials: G
authors.lastname: Gordeev
authors.affiliation: Institute of Chemistry and Biochemistry, Free University Berlin, 14195 Berlin, Germany.
authors.forename: Federica
authors.initials: F
authors.lastname: Maschietto
authors.affiliation: Institute of Chemistry and Biochemistry, Free University Berlin, 14195 Berlin, Germany.
authors.forename: Abbas
authors.initials: A
authors.lastname: Faghani
authors.affiliation: Institute of Chemistry and Biochemistry, Free University Berlin, 14195 Berlin, Germany.
authors.forename: Beate
authors.initials: B
authors.lastname: Paulus
authors.affiliation: Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Weinelt
authors.affiliation: Laboratorio de Microscopias Avanzadas (LMA), Instituto de Nanociencia de Aragon, Universidad de Zaragoza, 50018 Zaragoza, Spain.|Fundacion ARAID, 50018 Zaragoza, Spain.
authors.forename: Raul
authors.initials: R
authors.lastname: Arenal
authors.affiliation: Institute of Chemistry and Biochemistry, Free University Berlin, 14195 Berlin, Germany.
authors.forename: Rainer
authors.initials: R
authors.lastname: Haag
authors.affiliation: Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Reich