Spacer cation alloying in Ruddlesden-Popper perovskites for efficient red light-emitting diodes with precisely tunable wavelengths

• Main Authors: Qing, Jian, Ramesh, Sankaran, Xu, Qiang, Liu, Xiao-Ke, Wang, Heyong, Yuan, Zhongcheng, Chen, Zhan, Hou, Lintao, Sum, Tze Chien, Gao, Feng
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2021
• Subjects: Science::Physics; Perovskite; Light Emitting Diode; Transient Absorption Spectroscopy; Modelling
• Online Access: https://hdl.handle.net/10356/152894
• Institution: Nanyang Technological University

Perovskite light-emitting diodes (PeLEDs) have recently shown significant progress with external quantum efficiencies (EQEs) exceeding 20%. However, PeLEDs with pure-red (620-660 nm) light emission, an essential part for full-color displays, remain a great challenge. Herein, a general approach of sp...