Functionalization and photoelectrochemical characterization of poly[3-3′(vinylcarbazole)] multi-walled carbon nanotube (PVK-MWNT) Langmuir–Schaefer films
Bertoncello, Paolo; Notargiacomo, Andrea; Erokhin, Victor; Nicolini, Claudio; Bertoncello, Paolo; Nanoworld Institute and Biophysics Division, University of Genoa, Corso Europa 30, 16132 Genoa, Italy ;; Notargiacomo, Andrea; Department of Physics and INFM, University Roma TRE, Via della Vasca Navale 84, 00146 Rome, Italy; Erokhin, Victor; Center SOFT, Istituto dei Sistemi Complessi del CNR, Via dei Taurini 19, Rome, Italy ; Department of Physics, University of Parma, Parco Area delle Scienze 7A, 43100 Parma, Italy; Nicolini, Claudio; Nanoworld Institute and Biophysics Division, University of Genoa, Corso Europa 30, 16132 Genoa, Italy
Журнал:
Nanotechnology
Дата:
2006-02-14
Аннотация:
Multi-walled carbon nanotubes (MWNTs) were functionalized via oxidative polymerization of 3-3′(vinylcarbazole) (PVK). Thin films of PVK-functionalized MWNTs (PVK-MWNTs) were fabricated by the Langmuir–Schaefer (LS) technique and characterized by spectroscopic, microscopic, electrical and electrochemical techniques before and after doping with iodine. I/V characterization showed an increase in the conductivity of the PVK-MWNTs and I<sub>2</sub>-doped PVK-MWNTs compared with the PVK and I<sub>2</sub>-doped PVK, respectively. The electrochemical characterization showed the formation of an I<sub>2</sub>-doped PVK-MWNT complex. These nanostructured PVK-MWNT films revealed an increase in the current density under illumination of about 500 nA cm<sup>−2</sup>.
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