Fig. 2: Photophysical properties of 1TICz, 1BOICz, and 2BOICz doped films.

a–c Fluorescence (line, 298 K) and phosphorescence (dash dot, 77 K) spectra of their doped films (20 wt% doped films). d–f Transient PL decay curves of their doped films (20 wt% doped films). g Schematic illustration of decay, up-conversion, and intersystem crossing processes.