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 (DMP). 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. pinally, 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.
|Titolo:||Preparation and characterization of a new nanocomposite system based on dendrimer/carbon nanotube pair|
ALONGI, JENNY (Secondo)
|Parole Chiave:||Dendrimer; carbon nanotubes; Polymers and Plastics|
|Settore Scientifico Disciplinare:||Settore CHIM/04 - Chimica Industriale|
|Data di pubblicazione:||2005|
|Appare nelle tipologie:||01 - Articolo su periodico|