Abstract It is nowadays accepted that the optoelectronic properties of the donor-acceptor active layers are microstructure dependent and can be manipulated by employing various film deposition techniques. In this work, we show that fully intercalated co-crystalline polymer:fullerene microstructure can be obtained when depositing thin films using convective self-assembly technique. Moreover, this microstructure appears to be dependent, under specific film casting conditions, on the fullerene size. Use of slightly bigger fullerenes is leading to a multi-phase microstructure comprised of neat polymer domains, fullerene aggregates and co-crystalline polymer:fullerene structures.

中文翻译：

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聚合物微结构的控制：通过对流自组装富勒烯活性薄膜

摘要 如今，供体-受体活性层的光电特性取决于微观结构，并且可以通过使用各种薄膜沉积技术来控制。在这项工作中，我们表明使用对流自组装技术沉积薄膜时可以获得完全嵌入的共晶聚合物：富勒烯微观结构。此外，在特定的薄膜浇铸条件下，这种微观结构似乎取决于富勒烯尺寸。使用稍大的富勒烯导致多相微观结构由纯聚合物域、富勒烯聚集体和共晶聚合物：富勒烯结构组成。