Red Perovskite Light‐Emitting Diodes with Efficiency Exceeding 25% Realized by Co‐Spacer Cations
Chinese Academy of Sciences · Institute of Semiconductors · +4 more institutions
Abstract
Abstract Perovskite light‐emitting diodes (PeLEDs) have received great attention in recent years due to their narrow emission bandwidth and tunable emission spectrum. Efficient red emission is one of most important parts for lighting and displays. Quasi‐2D perovskites can deliver high emission efficiency due to the strong carrier confinement, while the external quantum efficiencies (EQE) of red quasi‐2D PeLEDs are inefficient at present, which is due to the complex distribution of different n ‐value phases in quasi‐2D perovskite films. In this work, the phase distribution of the quasi‐2D perovskite is finely controlled by mixing two different large organic cations, which effectively reduces the amount of…
Citation impact
- FWCI
- 31.94
- Percentile
- 100%
- References
- 47
Authors
9- JJJi Jiang
Chinese Academy of Sciences, Institute of Semiconductors, University of Chinese Academy of Sciences
- ZCZema Chu
Chinese Academy of Sciences, Institute of Semiconductors, University of Chinese Academy of Sciences
- ZYZhigang Yin
Chinese Academy of Sciences, Institute of Semiconductors, University of Chinese Academy of Sciences
- JLJingzhen Li
Chinese Academy of Sciences, Institute of Semiconductors, University of Chinese Academy of Sciences
- YYYingguo Yang
Chinese Academy of Sciences, Shanghai Institute of Applied Physics
Topics & keywords
- Perovskite (structure)
- Materials science
- Passivation
- Light-emitting diode
- Diode
- Halide
- Quantum efficiency
- Optoelectronics
- Affordable and clean energy