Improving the efficiency of inverted polymer solar cells by introducing inorganic dopants

被引:18
作者
Liu, Chunyu [1 ]
Li, Jinfeng [1 ]
Zhang, Xinyuan [1 ]
He, Yeyuan [1 ]
Li, Zhiqi [2 ]
Li, Hao [2 ]
Guo, Wenbin [1 ]
Shen, Liang [1 ]
Ruan, Shengping [2 ]
机构
[1] Jilin Univ, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
[2] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
OPEN-CIRCUIT VOLTAGE; QUANTUM DOTS; PHOTOVOLTAIC CELLS; NANOPARTICLES; LAYER; ENHANCEMENT; DEVICES; ORIGIN; GREEN;
D O I
10.1039/c5cp00417a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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 (J(SC)), fill factor (FF), and open-circuit voltage (V-OC).
引用
收藏
页码:7960 / 7965
页数:6
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