P‐100: Enhanced Luminescence by Multi ‘A’ Site Cations Strategy and Potassium Doping for Solution‐Processed Perovskite Light‐Emitting Diodes | Zendy

Wu Yongwei | Zendy; Hu Zhiping | Zendy; Xin Zhilong | Zendy; Yang Guang | Zendy; Jiang Pei | Zendy; Duan Miao | Zendy; Yin Yongming | Zendy; He Bo | Zendy; Chen Shujhih | Zendy; Li Dongze | Zendy; Zhou Hang | Zendy; Zhang Xin | Zendy; Zhang Shengdong | Zendy

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P‐100: Enhanced Luminescence by Multi ‘A’ Site Cations Strategy and Potassium Doping for Solution‐Processed Perovskite Light‐Emitting Diodes

Author(s) -

Wu Yongwei,

Hu Zhiping,

Xin Zhilong,

Yang Guang,

Jiang Pei,

Duan Miao,

Yin Yongming,

He Bo,

Chen Shujhih,

Li Dongze,

Zhou Hang,

Zhang Xin,

Zhang Shengdong

Publication year - 2020

Publication title -

sid symposium digest of technical papers

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.351

H-Index - 44

eISSN - 2168-0159

pISSN - 0097-966X

DOI - 10.1002/sdtp.14236

Subject(s) - perovskite (structure) , formamidinium , luminescence , doping , light emitting diode , diode , potassium , materials science , fabrication , brightness , optoelectronics , inorganic chemistry , chemistry , optics , crystallography , physics , metallurgy , medicine , alternative medicine , pathology

Normally, two‐dimensional (2D) perovskite with a formula of L 2 A n‐1 M n X 3n+1 contain a mono cation (e.g., methylammonium (MA + ) or formamidinium (FA + )). In this work, an approach, which emphasizes ‘A’ site cations mixing and potassium doping, was demonstrated to obtain highly luminescent 2D perovskites (PLQY up to 83%). The according perovskite light‐emitting diodes (PeLEDs), which were fabrication via all‐solution processing method, reaches a brightness of 2200 cd/m 2 , and a maximum current efficiency of 8.6 cd/A.

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