In-line, roll-to-roll morphology analysis of organic solar cell active layers

被引:54
作者
Rossander, Lea Hildebrandt [1 ]
Dam, Henrik Friis [1 ]
Carle, Jon Eggert [1 ]
Helgesen, Martin [1 ]
Rajkovic, Ivan [2 ]
Corazza, Michael [1 ]
Krebs, Frederik Christian [1 ]
Andreasen, Jens Wenzel [1 ]
机构
[1] Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark
[2] Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA
基金
欧洲研究理事会;
关键词
POLYMER; POLY(3-HEXYLTHIOPHENE); CRYSTALLINE; ELECTRONICS; FABRICATION;
D O I
10.1039/c7ee01900a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present the first comparative in situ small and wide angle X-ray scattering study of two polymers that are relevant for organic photovoltaics, during coating on a flexible substrate. From the obtained measurements we identified several differences between the drying of the two polymers. The polymer optimized for roll-to-roll coating attained its final morphological packing nearly instantly after deposition, and had the shortest drying profile. We therefore conclude that fast-drying polymers which are influenced less by drying temperature or substrate inhomogeneities are better suited for roll-to-roll coating, and that fundamentally, the kinetics of drying dominate the process in the case of roll-to-roll slot-die coating.
引用
收藏
页码:2411 / 2419
页数:9
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