Fig. 6
From: Integration of Environmental Friendly Perovskites for High-efficiency White Light-emitting Diodes
a PL spectra of WLED device under different injection currents, b chromaticity coordinates change of WLED device under different injection currents, c PL spectra of Bi-doped Cs2SnCl6 LED device under different injection currents, d PL spectra of Mn-doped CsPbCl3 LED device under different injection currents, e the FWHM variation of Bi-doped Cs2SnCl6 and Mn-doped CsPbCl3, f the PL intensity variation measured at different working time intervals