Realizing High-Efficiency TADF from a Low Performing Cyanopyridine Emitter via symmetric coupling

Key Points

• The aim is to enhance the performance of a low-performing cyanopyridine emitter through symmetric coupling techniques.
• Developed a low-performing cyanopyridine-based emitter (tCzPyCN).
• Applied a homo coupling technique to create a dual-core emitter (2tCz2Py2CN).
• Investigated the efficiency of the new emitter compared to the original.
• The dual-core emitter showed significantly improved TADF efficiency compared to the single-core emitter.
• The symmetric coupling method effectively transformed the emission properties of the cyanopyridine-based emitter.