Conjugated oligothienyl dendrimers based on a pyrazino[2,3-g]quinoxaline core.
The synthesis of a new series of conjugated dendrimers based on an electron-accepting core is introduced. The compounds showed broad absorption bands over 300-700 nm and have reduced HOMO-LUMO gaps of 1.7-1.9 eV. Incorporation of these compounds in bulk heterojunction solar cells as electron-donating material along with PC61BM as electron acceptor gave power conversion efficiencies of up to 1.3% for the second-generation dendrimer.
Mastalerz
Michael
M
Institute of Organic Chemistry II and Advanced Materials, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany. michael.mastalerz@uni-ulm.de
Fischer
Viktor
V
Ma
Chang-Qi
CQ
Janssen
René A J
RA
Bäuerle
Peter
P