title: A simple strategy to the side chain functionalization on the quinoxaline unit for efficient polymer solar cells.
abstract: A new tetrafluoridequinoxaline electron accepting block from a quinoxaline core, which is substituted with a fluorine atom onto its backbone and side chains, was designed. A new copolymer (PBDTT-ffQx) was synthesized from tetrafluoridequinoxaline and benzodithiophene. The copolymer was characterized in detail. The photovoltaic properties were well investigated. A high PCE of 8.6% based on the single junction device was obtained.
authors.affiliation: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China. yingpingzou@csu.edu.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Yuan
authors.forename: Lixia
authors.initials: L
authors.lastname: Qiu
authors.forename: Zhiguo
authors.initials: Z
authors.lastname: Zhang
authors.forename: Yongfang
authors.initials: Y
authors.lastname: Li
authors.forename: Yuehui
authors.initials: Y
authors.lastname: He
authors.forename: Lihui
authors.initials: L
authors.lastname: Jiang
authors.forename: Yingping
authors.initials: Y
authors.lastname: Zou