Investigation of non-halogenated solvent mixtures for high throughput fabrication of polymer-fullerene solar cells

被引:68
作者
Schmidt-Hansberg, Benjamin [1 ]
Sanyal, Monamie [2 ]
Grossiord, Nadia [3 ]
Galagan, Yulia [3 ]
Baunach, Michael [1 ]
Klein, Michael F. G. [4 ]
Colsmann, Alexander [4 ]
Scharfer, Philip [1 ]
Lemmer, Uli [4 ]
Dosch, Helmut [5 ]
Michels, Jasper [3 ]
Barrena, Esther [2 ,6 ]
Schabel, Wilhelm [1 ]
机构
[1] Karlsruhe Inst Technol KIT, Inst Thermal Proc Engn, D-76131 Karlsruhe, Germany
[2] Max Planck Inst Met Res, D-70569 Stuttgart, Germany
[3] Holst Ctr TNO, NL-5605 KN Eindhoven, Netherlands
[4] Karlsruhe Inst Technol KIT, Light Technol Inst, D-76131 Karlsruhe, Germany
[5] DESY, D-22607 Hamburg, Germany
[6] CSIC, ICMAB, Bellaterra 08193, Spain
关键词
Organic photovoltaic; Drying process; P3HT:PCBM; Morphology; Grazing incidence X-ray diffraction (GIXD); Knife coating; MORPHOLOGY; MOBILITY;
D O I
10.1016/j.solmat.2011.09.059
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The rapidly increasing power conversion efficiencies of organic solar cells are an important prerequisite towards low cost photovoltaic fabricated in high throughput. In this work we suggest indane as a non-halogenated replacement for the commonly used halogenated solvent o-dichlorobenzene. Indane was blended with the higher volatile solvents chloroform or toluene or o-xylene in order to improve wettability and to reduce drying time. The combination of high volatile solvents with the less volatile host solvent indane allows for an increased fabrication speed due to a reduction of the overall drying time and provides films with good light absorption behavior and high polymer crystallinity. For the solvent mixture toluene-indane, solar cell performance is comparable to the o-dichlorobenzene reference device indicating this mixture as a suitable replacement for increased productivity without drawbacks in nanomorphology as investigated by atomic force microscopy (AFM) and grazing incidence X-ray diffraction (GIXD). This study provides a fundamental understanding on solvent mixture drying kinetics and can aid the ink formulation. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:195 / 201
页数:7
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