Tri-diketopyrrolopyrrole molecular donor materials for high-performance solution-processed bulk heterojunction solar cells.
Two new high-performance DPP-containing donor molecules employing a molecular architecture with three DPP chromorphores (tri-DPP) in conjugated backbones are synthesized and characterized. The two tri-DPP molecules with only a structural difference on alkyl substitutions, when blended with PC71 BM, lead to power conversion efficiencies up to 4.8 and 5.5%, respectively.
Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, United States.
Jianhua
J
Liu
Yanming
Y
Sun
Preecha
P
Moonsin
Martijn
M
Kuik
Christopher M
CM
Proctor
Jason
J
Lin
Ben B
BB
Hsu
Vinich
V
Promarak
Alan J
AJ
Heeger
Thuc-Quyen
TQ
Nguyen
D011211:Electric Power Supplies; D011758:Pyrroles / Q000737:chemistry*; D011760:Pyrrolidinones / Q000737:chemistry*; D012993:Solar Energy; D012996:Solutions
D011758:Pyrroles; D011760:Pyrrolidinones; D012996:Solutions
bulk heterojunction; diketopyrrolopyrrole; molecular donor; organic photovoltaics