title: Development of new semiconducting polymers for high performance solar cells.
abstract: A new low band gap semiconducting polymer, PTB1, was synthesized and found promising for solar energy harvesting. Simple polymer solar cells based on PTB1 and methanofullerene [6,6]-phenyl-C(71)-butyric acid methyl esters (PC(71)BM) exhibit a solar conversion efficiency of 5.6%. An external quantum efficiency of 67% and fill-factor of 65% are achieved, both of which are among the highest values reported for a solar cell system based on a low band gap polymer.
authors.affiliation: Department of Chemistry and the James Franck Institute, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, USA.
authors.forename: Yongye
authors.initials: Y
authors.lastname: Liang
authors.forename: Yue
authors.initials: Y
authors.lastname: Wu
authors.forename: Danqin
authors.initials: D
authors.lastname: Feng
authors.forename: Szu-Ting
authors.initials: ST
authors.lastname: Tsai
authors.forename: Hae-Jung
authors.initials: HJ
authors.lastname: Son
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Luping
authors.initials: L
authors.lastname: Yu