Morphology and phase segregation of spin-casted films of Polyfluorene/PCBM blends

被引：425

作者：

Nilsson, Svante

Bernasik, Andrzej

Budkowski, Andrzej

Moons, Ellen ^{[1
]}

机构：

[1] Karlstad Univ, Dept Phys, SE-65188 Karlstad, Sweden

[2] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

[3] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

来源：

MACROMOLECULES | 2007年 / 40卷 / 23期

关键词：

D O I：

10.1021/ma070712a

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this study the morphology of spin-casted films of polymers blended with [6,6]-phenyl C-61-butyric acid methyl ester (PCBM) has been studied. It was found that the lateral structure formation in the films is favored by rapid solvent evaporation and strong polymer-PCBM repulsion. The formation of homogeneous films is favored by slow evaporation and weak polymer-PCBM repulsion. The effect of solvent evaporation rate is the opposite of what is found for spin-casting polymer-polymer blends. The results can be explained by the kinetics of phase separation and the phase behavior involving limited solubility and crystallization of PCBM.

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收藏

页码：8291 / 8301

页数：11

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