Fig. 2: Photo-physics of multiple exciton emissions in Cs3Cu2I5:Tl single crystal.
From: Exciton-harvesting enabled efficient charged particle detection in zero-dimensional halides
a, Cs3Cu2I5:Tl crystal ingot, and the polished slabs under day-light and UV light excitation. b, Powder neutron diffraction Rietveld refined results of Cs3Cu2I5:Tl. c, Crystal structure configuration of Cs3Cu2I5:Tl. d, Three categories of the four emissions of Cs3Cu2I5:Tl. e, f, h, Temperature dependence of PL and PLE spectra of emission I (e), emission II (f) and emission III (h). g, i, PL decay time as a function of temperature for emission II (g) and emission III (i), inset shows the decay profiles measured at room temperature
