Development of new semiconducting polymers for high performance solar cells.
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.
Liang
Yongye
Y
Department of Chemistry and the James Franck Institute, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, USA.
Wu
Yue
Y
Feng
Danqin
D
Tsai
Szu-Ting
ST
Son
Hae-Jung
HJ
Li
Gang
G
Yu
Luping
L