Phenothiazine-based TADF emitters with dual conformations for single-molecule white OLEDs

. Additionally, NTPCF-based single-molecule white OLEDs were developed by varying the doping concentration, yielding a cool white OLED with CIE coordinates of (0.33, 0.37), a CRI of 70, and an EQE of 3.36% and a warm white OLED with CIE coordinates of (0.39, 0.45) and an EQE of 4.25%.