title: High-Performance Color-Tunable Perovskite Light Emitting Devices through Structural Modulation from Bulk to Layered Film.
abstract: Adding 2-phenoxyethylamine (POEA) into a CH3NH3PbBr3precursor solution can modulate the organic-inorganic hybrid perovskite structure from bulk to layered, with a photoluminescence and electroluminescence shift from green to blue. Meanwhile, POEA can passivate the CH3NH3PbBr3surface and help to obtain a pure CH3NH3PbBr3phase, leading to an improvement of the external quantum efficiency to nearly 3% in CH3NH3PbBr3LED.
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Ziming
authors.initials: Z
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Chongyang
authors.initials: C
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Xiao-Fang
authors.initials: XF
authors.lastname: Jiang
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Meiyue
authors.initials: M
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Ruoxi
authors.initials: R
authors.lastname: Xia
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Shi
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Dongcheng
authors.initials: D
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Qifan
authors.initials: Q
authors.lastname: Xue
authors.affiliation: Department of Physics, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Yu-Jun
authors.initials: YJ
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Shijian
authors.initials: S
authors.lastname: Su
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Hin-Lap
authors.initials: HL
authors.lastname: Yip
authors.affiliation: State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Cao
keywords: blue emitting devices; color tunable; layered structures; organic-inorganic hybrid perovskite LEDs; structure modulation