Comparative Study of the Nanomorphology of Spray and Spin Coated PTB7 Polymer: Fullerene Films

被引：20
作者：
Al-Hussein, Mahmoud [1 ]
Herzig, Eva M. [2 ]
Schindler, Markus [3 ]
Loehrer, Franziska [3 ]
Palumbiny, Claudia M. [3 ]
Wang, Weijia [3 ]
Roth, Stephan V. [4 ]
Mueller-Buschbaum, Peter [3 ]
机构：
[1] Univ Jordan, Dept Phys, Amman 11942, Jordan
[2] Tech Univ Munich, Herzig Grp, MSE, D-85748 Garching, Germany
[3] Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, D-85748 Garching, Germany
[4] Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany
来源：
POLYMER ENGINEERING AND SCIENCE | 2016年 / 56卷 / 08期
关键词：
HETEROJUNCTION SOLAR-CELLS; PHOTOVOLTAIC CELLS; DROP IMPACT; X-RAY; DEPOSITION; EFFICIENCY; PHOTODIODES;
D O I：
10.1002/pen.24317
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
We present a comparative study of the nanomorphology of spray and spin coated films of a blend of thieno[3,4-b]-thiophene/benzodithiophene (PTB7) semiconducting polymer and [6,6]-phenyl-C-71-butyric acid methyl ester (PC71BM). The surface morphology and inner structure of these films are investigated with optical microscopy, atomic force microscopy (AFM), and grazing incidence wide-angle X-ray scattering (GIWAXS). The spray coated PTB7: PC71BM films exhibit significant differences in the molecular packing compared with their spin-coated counterparts. Only very weak order is observed in the spraycoated films as compared to well-defined ordered periodic lamellar structure and pi-pi stacking of the PTB7 polymer of the spin-coated systems. This difference in the resulting nanomorphology is related to the different structural formation mechanisms in the two deposition techniques. (C) 2016 Society of Plastics Engineers
引用
收藏
页码：889 / 894
页数：6
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