Conjugated alternating copolymers containing both donor and acceptor moieties in the main chain.
A straightforward synthesis toward two conjugated alternating copolymers consisting of 2,7-linked carbazole donor (2,7-Cz) and ladderized pentaphenylene with diketone bridge (LPPK) acceptor chromophores is reported: the copolymers differ by the repeat unit ratio between the 2,7-Cz and LPPK units within the backbone; energy and charge transfer properties and supramolecular organizations of donor-acceptor moieties in these copolymers have been studied via optical spectroscopy and two-dimensional wide-angle X-ray scattering (2D-WAXS); preliminary results such as the efficient energy and charge transfer and pi-stacking character in the solid state suggest that the copolymers are potentially useful for photovoltaic devices.
Zhang
Ming
M
Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128, Mainz, Germany.
Yang
Changduk
C
Mishra
Ashok K
AK
Pisula
Wojciech
W
Zhou
Gang
G
Schmaltz
Bruno
B
Baumgarten
Martin
M
Müllen
Klaus
K