• • CF3PMI-BFCF3 achieves a PLQY of 90% and a TADF lifetime of 1.16 μs in doped films, enabling high-efficiency green emission with reduced non-radiative decay, critical for low-power OLED displays.
• • Vacuum-deposited OLED based on CF3PMI-BFCF3 reaches an EQE of 22.7% at 514 nm, demonstrating that earth-abundant Cu(I) complexes can rival precious-metal phosphors in green electroluminescence.
• • Hyperfluorescent OLED using CF3PMI-BFCF3 as sensitizer yields an EQE of 21.8% at 537 nm with a narrow FWHM of 30 nm, satisfying the color purity requirements for Rec. 2020 displays.
• • One-pot synthesis affords target complexes in good yields, reducing production complexity and cost, which is essential for scalable manufacturing of Cu(I)-based emitters.