Using SWNT allows to exploit exceptional electronic and

Funzionalizzazione di nanotubi di carbonio con derivati tienilici per applicazioni fotovoltaiche

6MbAbstractThe piumini moncler outlet attention to environmental issues has risen in recent years due to the global demand for energy and the decreasing availability of fossil Therefore during this period there has been a moncler outlet trebaseleghe significant development technologies based on the direct conversion of solar energy into electricity photovoltaic cells. goes particularly to those based on organic materials, those with e_ciency especially based on BHJ between a fullerene derivative (PCBM) a conjugated polymer moncler donna (P3HT) in the linked site moncler outlet active layer moncler uomo of the cell. this thesis we outlet moncler properly functionalized Single Walled Carbon Nanotubes to verify the possibility to replace or complement the PCBM in organic cells with these functionalized materials. Using SWNT allows to exploit exceptional electronic and thermal properties, but moncler outlet online shop they need to be soluble the solvents used moncler saldi for the moncler saldi outlet deposition of thin films of the active layer of the cell. by reaction with an in situ generated moncler outlet serravalle diazonium salt to obtain derivatives of with high solubility. this piumini moncler work we discuss the approaches followed for the moncler outlet online uomo synthesis of compounds thiophene based residues suitable moncler bambino saldi to be used as precursors to the of SWNTs. The comparison between the thermal and electronic among the various samples of SWNT derivatized in batch and continuous flow has shown to be interesting and moncler outlet remarks moncler bambino outlet the necessity to a compromise piumini moncler uomo between solubility and functionalization degree to obtain a derivative able to electronically interact with the matrix of P3HT. to the collaboration with the University of moncler saldi uomo Palermo through the project it has been possible to present the piumini moncler scontatissimi results of a study of fluorescence of a matrix of P3HT by some derivatives of SWNT obtained in the of this Thesis. For each sample we checked any electronic interaction the polymer. out the derivatization of a sample of double walled (DWNT) in order to verify piumini moncler saldi the possibility of selectively functionalize outer wall of the nanostructure while maintaining the electronic structure the inner wall.

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