| |
[摘要]：Two polyfluorene derivatives containing a phenazasiline moiety and an electron acceptor were synthesized by the Suzuki coupling reaction. Molecular weight analysis showed that the two polymers had approximately 14 and 9 fluorene units as well as functional groups. Since these polymers had donor-pi-acceptor systems, their absorption edges were red-shifted compared to that of polyfluorene. Cyclic voltammetry experiments indicated that the polymers showed amphoteric redox behavior. Bulk heterojunction solar cells were fabricated using films made of the polymers and a fullerene derivative, and their photovoltaic properties were investigated. |
|
