Realization of solution processed multi-layer bulk heterojunction organic solar cells by electro-spray deposition

被引:57
作者
Ali, Mushtaq [2 ,5 ]
Abbas, Mamatimin [1 ,3 ]
Shah, Said Karim [1 ,2 ]
Tuerhong, Rouzhaji [2 ]
Generosi, Amanda [4 ]
Paci, Barbara [4 ]
Hirsch, Lionel [1 ]
Gunnella, Roberto [2 ]
机构
[1] Univ Bordeaux 1, Lab IMS, CNRS, UMR 5218,ENSCBP, F-33607 Pessac, France
[2] Univ Camerino, Sch Sci & Technol, CNISM, I-62032 Camerino, MC, Italy
[3] Johannes Kepler Univ Linz, Linz Inst Organ Solar Cells, A-4040 Linz, Austria
[4] ISM CNR Area Ric Tor Vergata, I-00133 Rome, Italy
[5] COMSATS Inst Informat Technol, Dept Phys, Islamabad 44000, Pakistan
关键词
Electro-spray; Solution processing; Organic solar cells; Multi-layer deposition; POLYMER; ENERGY; PERFORMANCE;
D O I
10.1016/j.orgel.2012.06.016
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electro-spray deposition (ESD) was applied to fabricate solution processed donor-acceptor bulk heterojunction organic photovoltaic devices with multi-layer structure. Solvent effect was observed when using different organic solvents. Power conversion efficiency (PCE) of the devices prepared from dichlorobenzene increased dramatically comparing to the ones from chloroform, owing to improved homogeneity of the films. ESD enabled us to fabricate solution processed multi-layer (donor/donor: acceptor/acceptor) devices with simple successive deposition steps. Energy Dispersive X-ray Reflectometry analysis confirmed distinct three layered structure of the active layers. Solar cell device parameters of the trilayer devices were compared to single layer devices and those of spin coated devices with the same donor: acceptor ratio and film thickness. Post-thermal treatment results showed that after annealing at 125 degrees C, trilayer devices exhibited best performance with the maximum PCE of 2.17%. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:2130 / 2137
页数:8
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