Fig. 3: Photophysical properties of SDP-doped film.
From: Ultraviolet irradiation-responsive dynamic ultralong organic phosphorescence in polymeric systems
a Time-resolved photoluminescence spectra and b phosphorescence decay curves under irradiation with 254 nm UV light for different irradiation times. c Excitation-phosphorescence emission mapping under 0, 5, 45, and 120 min continuous irradiation with 5 ms delay at room temperature. Em.Wave. emission wavelength, Ex.Wave. exitation wavelength. d Phosphorescence emission observed at different time intervals before and after switching off the light excitation at ambient conditions. e Phosphorescence spectra of SDP-doped film after 45 min irradiation measured at different temperatures from 77 to 250 K. f Nonradiative decay rate constant with different irradiation times.
