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STM induced luminescence in carbon nanotubes

Published online by Cambridge University Press:  15 September 2001

R. Coratger ,
J.-P. Salvetat ,
A. Carladous ,
F. Ajustron ,
J. Beauvillain ,
J.-M. Bonard  and
L. Forró
R. Coratger*
Affiliation:
CEMES/CNRS, 29 rue J. Marvig, BP 4347, 31055 Toulouse, France
J.-P. Salvetat
Affiliation:
CRMD/CNRS, 1b rue de la Férollerie, 45071 Orléans Cedex 2, France
A. Carladous
Affiliation:
CEMES/CNRS, 29 rue J. Marvig, BP 4347, 31055 Toulouse, France
F. Ajustron
Affiliation:
CEMES/CNRS, 29 rue J. Marvig, BP 4347, 31055 Toulouse, France
J. Beauvillain
Affiliation:
CEMES/CNRS, 29 rue J. Marvig, BP 4347, 31055 Toulouse, France
J.-M. Bonard
Affiliation:
Département de Physique, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, France
L. Forró
Affiliation:
Département de Physique, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, France
*
coratger@cemes.fr
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Abstract

Light emission excited by scanning tunnelling microscopy (STM) has been observed on multiwall carbon nanotubes. The photon yield depends on the scanned tube but it is constant all along the tube. Simultaneous photon spectroscopy evidences emitted wavelengths in the 600−1000 nm range in good agreement with previous field emission data. Emission characteristics are independent of substrate and of STM tip. We discuss how these new results are consistent with radiative transitions involving localized states in carbon nanotubes.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 15 , Issue 3 , September 2001 , pp. 177 - 180
Copyright
© EDP Sciences, 2001

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