TY - JOUR
T1 - A New sp2-sp2Dialkylethylene-Bridged Heptacyclic Ladder-Type Arene for High Effi ciency Polymer Solar Cells
AU - Wu, Jhong Sian
AU - Lai, Yu Ying
AU - Cheng, Yen-Ju
AU - Chang, Chih Yu
AU - Wang, Chien-Lung
AU - Hsu, Chain-Shu
PY - 2013/4/1
Y1 - 2013/4/1
N2 - A new dithienobenzo-carbazole (DTBC) heptacyclic arene using sp 2-sp2 dialkylethylene moiety as the bridge was successfully synthesized by Suzuki-Miyaura cross-coupling reaction. This facile benzoannulation planarizes the conjugated framework with the concomitant introduction of four octyl substituents, making the newly designed copolymer PDTBCDTBT exhibit solution processability, superior absorption ability, lower-lying HOMO energy level, and crystalline nature. The solar cell using PDTBCDTBT has produced a high effi ciency of 6.2%, which outperforms the corresponding sp 3 -hybridized C-bridged, Si-bridged and N-bridged analogous polymers.
AB - A new dithienobenzo-carbazole (DTBC) heptacyclic arene using sp 2-sp2 dialkylethylene moiety as the bridge was successfully synthesized by Suzuki-Miyaura cross-coupling reaction. This facile benzoannulation planarizes the conjugated framework with the concomitant introduction of four octyl substituents, making the newly designed copolymer PDTBCDTBT exhibit solution processability, superior absorption ability, lower-lying HOMO energy level, and crystalline nature. The solar cell using PDTBCDTBT has produced a high effi ciency of 6.2%, which outperforms the corresponding sp 3 -hybridized C-bridged, Si-bridged and N-bridged analogous polymers.
UR - http://www.scopus.com/inward/record.url?scp=84876726529&partnerID=8YFLogxK
U2 - 10.1002/aenm.201200929
DO - 10.1002/aenm.201200929
M3 - Article
AN - SCOPUS:84876726529
SN - 1614-6832
VL - 3
SP - 457
EP - 465
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 4
ER -
