The non-covalent functionalization of carbon nanotubes with spiropyran molecules, serving as optically addressable dipole switches, is reported. Two kinds of pyrene–spiropyran-based dyads with spacers of different lengths resulting in different switch–tube distances were investigated. While both surfactants were able to form stable carbon nanotube suspensions, the different distances between the switch and the tube affected both of the components' optical properties. In the case of the shorter spacer, the nanotubes' luminescence as well as the merocyanine absorption band were red-shifted and furthermore, the rate of the merocyanine → spiropyran thermal back isomerization was decreased.

Tuning the interaction between carbon nanotubes and dipole switches: the influence of the change of the nanotube-spiropyran distance / P., Bluemmel; Setaro, Antonio; C., Maity; S., Hecht; S., Reich. - In: JOURNAL OF PHYSICS. CONDENSED MATTER. - ISSN 0953-8984. - 24:(2012), p. 394005. [10.1088/0953-8984/24/39/394005]

Tuning the interaction between carbon nanotubes and dipole switches: the influence of the change of the nanotube-spiropyran distance

SETARO, ANTONIO;
2012

Abstract

The non-covalent functionalization of carbon nanotubes with spiropyran molecules, serving as optically addressable dipole switches, is reported. Two kinds of pyrene–spiropyran-based dyads with spacers of different lengths resulting in different switch–tube distances were investigated. While both surfactants were able to form stable carbon nanotube suspensions, the different distances between the switch and the tube affected both of the components' optical properties. In the case of the shorter spacer, the nanotubes' luminescence as well as the merocyanine absorption band were red-shifted and furthermore, the rate of the merocyanine → spiropyran thermal back isomerization was decreased.
2012
Tuning the interaction between carbon nanotubes and dipole switches: the influence of the change of the nanotube-spiropyran distance / P., Bluemmel; Setaro, Antonio; C., Maity; S., Hecht; S., Reich. - In: JOURNAL OF PHYSICS. CONDENSED MATTER. - ISSN 0953-8984. - 24:(2012), p. 394005. [10.1088/0953-8984/24/39/394005]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/588352
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 21
social impact