Functionalization of carbon nanotubes using phenosafranin

S A Curran; A V Ellis; A Vijayaraghavan; P M Ajayan

doi:10.1063/1.1644109

Functionalization of carbon nanotubes using phenosafranin

J Chem Phys. 2004 Mar 8;120(10):4886-9. doi: 10.1063/1.1644109.

Authors

S A Curran¹, A V Ellis, A Vijayaraghavan, P M Ajayan

Affiliation

¹ Department of Physics, New Mexico State University, Las Cruces, New Mexico 88001Nanotechnology Center, Rensselaer Polytechnic Institute, Troy, New York 12180, USA. shay@physics.nmsu.edu

PMID: 15267349
DOI: 10.1063/1.1644109

Abstract

Spectroscopic analysis and atomic force microscopy (AFM) phase imaging studies show self-assembly of phenosafranin (PSF) to multiwalled carbon nanotubes (MWNTs). The shift in absorption spectra is associated with charge transfer of valence electrons from PSF to electron accepting sites on the MWNTs. The Raman-active disorder modes are used to fingerprint PSF attachment to MWNTs via defect states. AFM phase imaging was used to obtain a molecular topographic visual confirmation of PSF attached to the MWNT.