Advanced Materials · 2014 · 1.3K citations · 36 references
Natural SciencesMaterials EngineeringMaterials ScienceElectronic MaterialsOptoelectronicsSemiconductor MaterialsLight-emitting DiodesLuminescent MaterialsOptoelectronic MaterialsOrganic Electronic MaterialsOrganic SemiconductorsPerovskite MaterialsCurrent EfficiencyLuminanceOrganic-inorganic Hybrid PerovskitesPerovskite Light-emitting DiodesPerovskite Luminescent MaterialsPerovskite Semiconductors
Bright organic/inorganic hybrid perov-skite light-emitting diodes (PrLEDs) are realized by using CH3 NH3 PbBr3 as an emitting layer and self-organized buffer hole-injection layer (Buf-HIL). The PrLEDs show high luminance, current efficiency, and EQE of 417 cd m(-2) , 0.577 cd A(-1) , and 0.125%, respectively. Buf-HIL can facilitate hole injection into CH3 NH3 PbBr3 as well as block exciton quenching.
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