Superacid-catalyzed Friedel–Crafts polyhydroxyalkylation: a straightforward method to construct sky-blue thermally activated delayed fluorescence polymers
Literature Information
Manli Huang, Xuan Zeng, Cheng Zhong, Guohua Xie, Xiaosong Cao, Changan Yang
Despite the rapid development of thermally activated delayed fluorescence (TADF) polymers for solution-processed electroluminescence devices, there still exists a great demand on the exploitation of efficient blue TADF polymers. Herein, we designed and synthesized a series of sky-blue TADF polymers via simple and metal-free superacid-catalyzed Friedel–Crafts polyhydroxyalkylation. All of these TADF polymers successfully inherited the features of TADF moieties embedded into the backbone. By utilizing these polymers as the emitting layers, solution-processed polymer light emitting diodes (PLEDs) achieved good performance with the maximum external quantum efficiency of 5.4%.
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