Light-emitting diodes(LEDs)based on halide perovskites have witnessed rapid advancement in recent years,benefiting from their exceptional optoelectronic properties,including high photoluminescence quantum yield(PLQY),...Light-emitting diodes(LEDs)based on halide perovskites have witnessed rapid advancement in recent years,benefiting from their exceptional optoelectronic properties,including high photoluminescence quantum yield(PLQY),widely tunable bandgap,and excellent color purity.A notable characteristic of conventional metal halide perovskites,however,is their small exciton binding energy,which weakens radiative recombination and thereby limits the external quantum efficiency(EQE)of perovskite LEDs(PeLEDs).展开更多
文摘Light-emitting diodes(LEDs)based on halide perovskites have witnessed rapid advancement in recent years,benefiting from their exceptional optoelectronic properties,including high photoluminescence quantum yield(PLQY),widely tunable bandgap,and excellent color purity.A notable characteristic of conventional metal halide perovskites,however,is their small exciton binding energy,which weakens radiative recombination and thereby limits the external quantum efficiency(EQE)of perovskite LEDs(PeLEDs).
