Abstract The morphologies of bulk heterojunction (BHJ) films of blended semiconductor of poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM) deposited by doctor blading and spin coating were investigated. Controlled phase separation in BHJ organic/polymer solar cells (OSCs) were achieved using doctor blading. The results revealed that the coating method induced a significant difference in the film morphology. The vertical phase distribution of the BHJ layer fabricated by doctor blading was uniform, while uneven phase distribution was observed in spin coated BHJ layer. The uniform phase distribution in the doctor blading coated film resulted in higher charge carrier mobility and power conversion efficiency in solar cell than those in films fabricated from spin coating. The results demonstrated that doctor blading has advantages not only in large area high throughput and roll-to-roll compatibility, but also in better control of film morphology to achieve high efficiency consistently in OSC devices.

中文翻译：

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研究涂层方法诱导聚合物-富勒烯有机太阳能电池中的垂直相分布

摘要 博士沉积的聚（3-己基噻吩）（P3HT）和1-（3-甲氧基羰基）-丙基-1-苯基-（6,6）C61（PCBM）混合半导体的体异质结（BHJ）薄膜的形貌对刮刀和旋涂进行了研究。BHJ 有机/聚合物太阳能电池 (OSC) 中的受控相分离是使用刮刀实现的。结果表明，涂​​层方法引起了薄膜形态的显着差异。刮刀制备的BHJ层的垂直相位分布是均匀的，而旋涂BHJ层则观察到不均匀的相位分布。刮刀涂层薄膜中的均匀相位分布导致太阳能电池中的电荷载流子迁移率和功率转换效率高于旋涂薄膜。