High‐Performance Color‐Tunable Perovskite Light Emitting Devices through Structural Modulation from Bulk to Layered Film | Zendy

Chen Ziming | Zendy; Zhang Chongyang | Zendy; Jiang XiaoFang | Zendy; Liu Meiyue | Zendy; Xia Ruoxi | Zendy; Shi Tingting | Zendy; Chen Dongcheng | Zendy; Xue Qifan | Zendy; Zhao YuJun | Zendy; Su Shijian | Zendy; Yip HinLap | Zendy; Cao Yong | Zendy

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High‐Performance Color‐Tunable Perovskite Light Emitting Devices through Structural Modulation from Bulk to Layered Film

Author(s) -

Chen Ziming,

Zhang Chongyang,

Jiang XiaoFang,

Liu Meiyue,

Xia Ruoxi,

Shi Tingting,

Chen Dongcheng,

Xue Qifan,

Zhao YuJun,

Su Shijian,

Yip HinLap,

Cao Yong

Publication year - 2017

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201603157

Subject(s) - materials science , passivation , electroluminescence , photoluminescence , perovskite (structure) , optoelectronics , modulation (music) , phase (matter) , quantum efficiency , green light , chemical engineering , nanotechnology , blue light , layer (electronics) , organic chemistry , philosophy , chemistry , engineering , aesthetics

Adding 2‐phenoxyethylamine (POEA) into a CH 3 NH 3 PbBr 3 precursor 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 CH 3 NH 3 PbBr 3 surface and help to obtain a pure CH 3 NH 3 PbBr 3 phase, leading to an improvement of the external quantum efficiency to nearly 3% in CH 3 NH 3 PbBr 3 LED.

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