Over the past decade,solution-processed metal halide perovskite light-emitting diode (PeLEDs) technology has been developed rapidly because of their high color purity,tunable emission and low cost.The external quantum...Over the past decade,solution-processed metal halide perovskite light-emitting diode (PeLEDs) technology has been developed rapidly because of their high color purity,tunable emission and low cost.The external quantum efficiencies (EQEs) of PeLEDs have already boosted from less than 1%to over 30%[1].The recent advances have predominantly involved Quasi-2D perovskites or perovskite quantum dots,which could enhance exciton binding energy and spatially restrict charge carriers,thereby significantly improve radiative recombination [2-6].展开更多
文摘Over the past decade,solution-processed metal halide perovskite light-emitting diode (PeLEDs) technology has been developed rapidly because of their high color purity,tunable emission and low cost.The external quantum efficiencies (EQEs) of PeLEDs have already boosted from less than 1%to over 30%[1].The recent advances have predominantly involved Quasi-2D perovskites or perovskite quantum dots,which could enhance exciton binding energy and spatially restrict charge carriers,thereby significantly improve radiative recombination [2-6].