P‐100: Enhanced Luminescence by Multi 'A' Site Cations Strategy and Potassium Doping for Solution‐Processed Perovskite Light‐Emitting Diodes. Issue 1 (25th September 2020)

• Record Type: Journal Article
• Authors: 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
• Is Part Of: Digest of technical papers. Volume 51:Issue 1(2020)
• Page Start: 1739
• Page End: 1742
• Publication Date: 2020-09-25
• Subjects: Multi 'A' Site Cations -- Potassium Doping -- Solution‐Processed -- Perovskite Light-Emitting Diodes (PeLEDs); Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.14236
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : Normally, two‐dimensional (2D) perovskite with a formula of L2 An‐1 Mn X3n+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.