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| Volume 1, Issue 01 - 2006, January |
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| 2 |
PREPARATION AND CHARACTERIZATION OF A NEW NANOCOMPOSITE SYSTEM BASED ON DENDRIMER/CARBON NANOTUBE PAIR |
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| Pages 5-12 |
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| Laura Ricco1,
Jenny Alongi1, Luca Valentini2, Ilaria
Armentano2, Alberto Mariani3, Saverio
Russo1, Jose M. Kenny2 |
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1 Department of Chemistry and Industrial Chemistry,
University of Genova and INSTM Local Unit,
Via Dodecaneso 31, 16146 Genova, Italy
2 Materials Science and Technology Centre, University of
Perugia and INSTM Local Unit, Loc. Pentima Bassa, 05100
Terni, Italy
3 Department of Chemistry, University of Sassari and INSTM
Local Unit, Via Vienna 2, 07100 Sassari, Italy |
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| Received 21 July 2005;
accepted 20 September 2005 |
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| A new nanocomposite
formed by single walled carbon nanotubes (SWNTs) and a
semiconducting dendrimer with aromatic end groups (PAMAMC)
has been prepared and investigated. The good dispersion of
SWNTs in PAMAMC matrix has been promoted by sonication in a
suitable medium, e.g. N,N-dimethylformamide (DMF). The
product obtained has been characterized by SEM and TEM
microscopies in order to verify the formation of a
nanocomposite system, while UV-Vis and Raman spectroscopies
have been considered for investigation on type and level of
non-covalent interaction between PAMAMC and SWNT. Finally,
in relation to potential photoelectrical properties of the
system based on donor (PAMAMC) and acceptor (SWNT) pair,
analysis of PAMAMC/SWNT systems exposed to UV light shows
that conductivity increases and that a possible transport
mechanism is governed by the formation of a charge transfer
complex. |
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