Fig. 6From: High-Performance Quasi-Two-Dimensional CsPbBr2.1Cl0.9:PEABr Perovskite Sky-Blue LEDs with an Interface Modification Layer(a) Electroluminescence (EL) spectra and (b) EL peaks of the QTD CsPbBr2.1Cl0.9:PEABr PeLEDs with different additives (insert: the operational CsPbBr2.1Cl0.9:80% PEABr PeLED with CsCl additive). Current density of the QTD CsPbBr2.1Cl0.9:PEABr PeLEDs (c) without and (d) with different additivesBack to article page