Preserving π-conjugation in covalently functionalized carbon nanotubes for optoelectronic applications

Antonio Setaro, Mohsen Adeli (), Mareen Glaeske, Daniel Przyrembel, Timo Bisswanger, Georgy Gordeev, Federica Maschietto, Abbas Faghani, Beate Paulus, Martin Weinelt, Raul Arenal, Rainer Haag () and Stephanie Reich ()
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Antonio Setaro: Free University Berlin
Mohsen Adeli: Faculty of Science, Lorestan University
Mareen Glaeske: Free University Berlin
Daniel Przyrembel: Free University Berlin
Timo Bisswanger: Free University Berlin
Georgy Gordeev: Free University Berlin
Federica Maschietto: Institute of Chemistry and Biochemistry, Free University Berlin
Abbas Faghani: Institute of Chemistry and Biochemistry, Free University Berlin
Beate Paulus: Institute of Chemistry and Biochemistry, Free University Berlin
Martin Weinelt: Free University Berlin
Raul Arenal: Laboratorio de Microscopias Avanzadas (LMA), Instituto de Nanociencia de Aragon, Universidad de Zaragoza
Rainer Haag: Institute of Chemistry and Biochemistry, Free University Berlin
Stephanie Reich: Free University Berlin

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: 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 sp2 network 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.

Date: 2017
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DOI: 10.1038/ncomms14281

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