Fig. 12From: White light emitting diode based on purely organic fluorescent to modern thermally activated delayed fluorescence (TADF) and perovskite materials(Reproduced with permission from Ref. [32] Copyright 2006, ©WILEY–VCH Verlag GmbH & Co. KGaA, Weinheim)EL spectra of WPLEDs (a, b) and EL spectra of the WPLEDs, c WPFB-BT-3 and d WPF-BT-3 at different driving voltagesBack to article page