Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP20)
Publication date: 14th October 2019
Controlling the conductivity and bandgap chemistry of carbonaceous fillers could broaden up their application potential. However, it has been a difficult synthetic goal for more than a decade. We describe a methodology to do so in a very controlled manner on single-walled carbon nanotubes (SWNT). The gradual formation of a covalent aryl bond alters the electrical conductivity of the SWNT in two steps depending on the functionalization degree. The so- controlled covalent functionalization was the basic synthetic technique to make SWNT easier to manipulate and tolerably soluble, with modulated electrical and electrochemical properties, so that the performances in photovoltaic cells were unusually appreciated. Unsorted functionalized SWNTs were employed in organic photovoltaic OPV (cells) as electron acceptors or dopants with commercial polymer (P3HT) and novel synthesized low bandgap copolymer, respectively.
Z El-Moussawi, A Nourdine, H Medlej, T Hamieh, P Chenevier, L Flandin Fine tuning of optoelectronic properties of single-walled carbon nanotubes from conductors to semiconductors,Carbon,153,337-346,2019,Pergamon
The authors thank Jonathan Outin from Université Savoie Mont Blanc for the provision of the equipment/accessories required for the centrifugation experiments. The authors thank the Conseil Savoie Mont Blanc for financial support
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