title: Multicolored organic/inorganic hybrid perovskite light-emitting diodes.
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.
authors.affiliation: Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk, 790-784, Republic of Korea.
authors.forename: Young-Hoon
authors.initials: YH
authors.lastname: Kim
authors.forename: Himchan
authors.initials: H
authors.lastname: Cho
authors.forename: Jin Hyuck
authors.initials: JH
authors.lastname: Heo
authors.forename: Tae-Sik
authors.initials: TS
authors.lastname: Kim
authors.forename: NoSoung
authors.initials: N
authors.lastname: Myoung
authors.forename: Chang-Lyoul
authors.initials: CL
authors.lastname: Lee
authors.forename: Sang Hyuk
authors.initials: SH
authors.lastname: Im
authors.forename: Tae-Woo
authors.initials: TW
authors.lastname: Lee
keywords: electroluminescence; hole-injection layers; light-emitting diodes; organic/inorganic hybrids; perovskites