Fig. 3: Dynamic multicolor evolution of PL at room temperature.
From: Dynamic multicolor emissions of multimodal phosphors by Mn2+ trace doping in self-activated CaGa4O7
a, b Photographs and spectra of PL from CaGa4O7:Mn2+ with increasing photoexcitation time. c Excitation spectra of CaGa4O7:Mn2+ monitoring different emission wavelengths. d–f Photographs, spectra, and kinetic process of PL from undoped CaGa4O7 with increasing photoexcitation time. g Photoexcitation time-dependent PL photographs of CaGa4O7:Mn2+ at different re-excitation intervals and after heat treatment. h Kinetic processes of blue and yellow emissions re-excited after different time intervals. i, j Time-dependent PL photographs and transient PL images of CaGa4O7:Mn2+ under different optical power densities. Source data are provided as a Source Data file.
