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Electrical Characterization of Nanostructured Carbon Films Produced by Supersonic Cluster Beam Deposition

Published online by Cambridge University Press:  17 March 2011

Paolo Piseri ,
Emanuele Barborini ,
Mara Bruzzi ,
Stefania Miglio ,
Gero Bongiorno  and
Paolo Milani
Paolo Piseri
Affiliation:
INFM -Università degli Studi di Milano, Dipartimento di Fisica, Via Celoria 16, 20133 Milano, Italy
Emanuele Barborini
Affiliation:
INFM -Università degli Studi di Milano, Dipartimento di Fisica, Via Celoria 16, 20133 Milano, Italy
Mara Bruzzi
Affiliation:
INFM -Università di Firenze, Dipartimento di Energetica, Via S. Marta 3, 50139 Firenze, Italy
Stefania Miglio
Affiliation:
INFM -Università di Firenze, Dipartimento di Energetica, Via S. Marta 3, 50139 Firenze, Italy
Gero Bongiorno
Affiliation:
INFM -Università degli Studi di Milano, Dipartimento di Fisica, Via Celoria 16, 20133 Milano, Italy
Paolo Milani
Affiliation:
INFM -Università degli Studi di Milano, Dipartimento di Fisica, Via Celoria 16, 20133 Milano, Italy
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Abstract

Electrical conduction in nanostructured carbon (ns-C) films produced by deposition of a supersonic beam of neutral carbon clusters has been studied. The d.c. conduction properties of these films have been measured in-situ during the deposition process and ex-situ as a function of the temperature in vacuum and in ambient of different gases (H2, N2, CH4, He). The ns-C films exhibit an ohmic behavior with a room temperature resistivity in the range 10MΩcm-1GΩcm depending on the growth and storage conditions. Conductivity vs. temperature measured in vacuum in the range 300-400K is characterized by activation energies in the range 0.3-0.7eV, the current response does not differ significantly in gas atmosphere.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 704: Symposium W – Nanoparticulate Materials , 2001 , W9.38.1
Copyright
Copyright © Materials Research Society 2002

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