Abstract
We have successfully prepared mono- and bi-functionalized multiwall carbon nanotubes(MWCNT) with thiophene, amine and thiophene–amine groups. The dispersion of nanotubeshas been enhanced and stable optimized dispersions in organic solvents were obtained. Thesefunctionalized nanotubes have been successfully incorporated into bulk heterojunction(BHJ) organic photovoltaic (OPV) cells with a poly (3-hexyl thiophene) (P3HT) and [6, 6]-phenyl-C61-butyric acid methyl ester (PCBM) photoactive blended layer. The incorporation ofMWCNT with different functional groups, in the active layer, results in different cellperformance with respect to a reference cell. A maximum power conversion efficiency of2.5% is achieved with the inclusion of thiophene functionalized nanotubes. Thisimprovement in the device performance is attributed to an extension of the excitondissociation volume and charge transport properties through the nanotube percolationnetwork in P3HT/CNT, PCBM/CNT or both phases. This is believed to be due to moreefficient dispersion of the functionalized nanotubes within the photoactive compositelayer.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
