Multicolored organic/inorganic hybrid perovskite light-emitting diodes.

Kim, Young-Hoon; Cho, Himchan; Heo, Jin Hyuck; Kim, Tae-Sik; Myoung, NoSoung; Lee, Chang-Lyoul; Im, Sang Hyuk; Lee, Tae-Woo · Adv Mater · 2015

basic_science · Level V

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Abstract

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.