title: Improving the efficiency of inverted polymer solar cells by introducing inorganic dopants.
abstract: Cadmium selenide (CdSe) quantum dots (QDs) utilized as additives have been incorporated intopolymer solar cells (PSCs) composed of poly[N-9''-hepta-decanyl-2,7-carbazolealt-5,5-(4',7'-di-2-thienyl-2',1',3'-ben-zothiadiazole)] (PCDTBT) and fullerene derivative [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM). The maximum power conversion efficiency (PCE) of 6.94% has been achieved, corresponding to 33% enhancement compared with the control devices. The introduction of CdSe QDs allows not only the improvement of charge transport properties but also tuning of the energy levels, which leads to a higher short circuit current (Jsc), fill factor (FF), and open-circuit voltage (Voc).
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China. guowb@jlu.edu.cn.
authors.forename: Chunyu
authors.initials: C
authors.lastname: Liu
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Li
authors.forename: Xinyuan
authors.initials: X
authors.lastname: Zhang
authors.forename: Yeyuan
authors.initials: Y
authors.lastname: He
authors.forename: Zhiqi
authors.initials: Z
authors.lastname: Li
authors.forename: Hao
authors.initials: H
authors.lastname: Li
authors.forename: Wenbin
authors.initials: W
authors.lastname: Guo
authors.forename: Liang
authors.initials: L
authors.lastname: Shen
authors.forename: Shengping
authors.initials: S
authors.lastname: Ruan