Solution processing of conjugated polymers into ordered self‐assembled precursors has attracted great interest in the past years owing to the ability to manipulate their structural and physical properties. Regioregular poly(3‐hexylthiophene) (P3HT) has become the benchmark polymer in this scenario, where ordered lamellar structures significantly improve carrier mobility of the thin films due to increased crystallinity, extended intrachain conjugation, and ordered interchain π‐stacking. Here, a new photoinduced approach is presented for the generation of highly ordered P3HT aggregate structures that is amenable to the use of visible light to control the aggregate formation. Strong intra‐ and interchain interactions in the solution precursors allow for permanent formation of localized and delocalized polarons that are stable for months. Spin‐coated thin films are found to preserve, in part, the morphological and physical properties of the aggregated P3HT solution precursors with high degree of crystallinity and short π‐stack interchain distances.

中文翻译：

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区域规则的聚（3-己基噻吩）中的光诱导自组装纳米结构和永久极化子形成。

将共轭聚合物溶液加工成有序的自组装前体，由于具有操纵其结构和物理特性的能力，在过去几年中引起了极大的兴趣。在这种情况下，区域规则的聚（3-己基噻吩）（P3HT）已成为基准聚合物，其中有序的层状结构由于增加的结晶度，扩展的链内共轭和有序的链间π堆积而显着提高了薄膜的载流子迁移率。在这里，提出了一种新的光诱导方法，用于生成高度有序的P3HT聚集体结构，该结构适合使用可见光控制聚集体的形成。溶液前体中强大的链内和链间相互作用允许永久形成数月稳定的局部和离域极化子。