devices. We report an approach for light‐induced modulation of the solubility of π‐conjugated polymers (polyfluorene) with side chains functionalized with hydroxycinnamic acid. Irradiation with light cleaves the solubilizing side chains and renders the thin films of the polyfluorene insoluble. In a proof of concept device, polyfluorenes were applied as emissive layers in OLEDs. Photoirradiation of the emission
液相处理是有机电子设备经济高效地制造的关键前提。我们报告了一种用光诱导的π-共轭聚合物(聚
芴)的溶解度与
羟基肉桂酸官能化侧链的溶解度的方法。用光辐照会切割可溶解的侧链,并使聚
芴薄膜不溶。在概念验证设备中,聚
芴被用作OLED中的发射层。发射层的光辐照导致OLED性能的提高以及薄膜溶解度的调节。这些结果为操纵重要功能材料类别的溶解度和发射参数方面的进一步发展提供了可能性。