Efficient and Spectrally Stable Blue Light-Emitting Diodes Based on Diphenylguanidine Bromide Passivated Mixed-Halide Perovskites

2021 ◽  
Author(s):  
Wei Li ◽  
Huijun Zhang ◽  
Cong Yu ◽  
Teng Li ◽  
Xiaoshuai Zhang ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Halide Perovskites

scholarly journals Color-Stable Blue Light-Emitting Diodes Enabled by Effective Passivation of Mixed Halide Perovskites

2021 ◽  
pp. 6041-6047
Author(s):  
Hongling Yu ◽  
Heyong Wang ◽  
Tiankai Zhang ◽  
Chang Yi ◽  
Guanhaojie Zheng ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Halide Perovskites

Band Edge Control of Quasi‐2D Metal Halide Perovskites for Blue Light‐Emitting Diodes with Enhanced Performance

2021 ◽  
pp. 2103299
Author(s):  
Michael Worku ◽  
Azza Ben‐Akacha ◽  
Samanvitha Sridhar ◽  
Jordan R. Frick ◽  
Shichen Yin ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Metal Halide ◽  
Band Edge ◽  
Light Emitting ◽  
Halide Perovskites

A review of low-dimensional metal halide perovskites for blue light emitting diodes

2021 ◽  
pp. 160727
Author(s):  
Xiaodong Peng ◽  
Cheng Yan ◽  
Fengjun Chun ◽  
Wen Li ◽  
Xuehai Fu ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Metal Halide ◽  
Light Emitting ◽  
Halide Perovskites ◽  
Low Dimensional

Blue light-emitting diodes based on halide perovskites: Recent advances and strategies

2021 ◽  
Author(s):  
Jianfeng Zhang ◽  
Lin Wang ◽  
Xiaoyu Zhang ◽  
Guohua Xie ◽  
Guohua Jia ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Recent Advances ◽  
Halide Perovskites

Phase Control and In Situ Passivation of Quasi-2D Metal Halide Perovskites for Spectrally Stable Blue Light-Emitting Diodes

2020 ◽  
Vol 12 (40) ◽  
pp. 45056-45063
Author(s):  
Michael Worku ◽  
Qingquan He ◽  
Liang-jin Xu ◽  
Jisook Hong ◽  
Ruo Xi Yang ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Phase Control ◽  
Metal Halide ◽  
Light Emitting ◽  
Halide Perovskites

scholarly journals Mixed Halide Perovskites for Spectrally Stable and High-Efficiency Blue Light-Emitting Diodes

2021 ◽  
Author(s):  
Max Karlsson ◽  
Feng Gao ◽  
Sebastian Reichert ◽  
Xiyu Luo ◽  
Weihua Lin ◽  
...  
Keyword(s):  
Blue Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Halide Perovskites

scholarly journals Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Max Karlsson ◽  
Ziyue Yi ◽  
Sebastian Reichert ◽  
Xiyu Luo ◽  
Weihua Lin ◽  
...  
Keyword(s):  
Blue Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Three Dimensional ◽  
Blue Emission ◽  
Chloride Content ◽  
Practical Implementation ◽  
Light Emitting ◽  
Wide Range ◽  
Halide Perovskites

AbstractBright and efficient blue emission is key to further development of metal halide perovskite light-emitting diodes. Although modifying bromide/chloride composition is straightforward to achieve blue emission, practical implementation of this strategy has been challenging due to poor colour stability and severe photoluminescence quenching. Both detrimental effects become increasingly prominent in perovskites with the high chloride content needed to produce blue emission. Here, we solve these critical challenges in mixed halide perovskites and demonstrate spectrally stable blue perovskite light-emitting diodes over a wide range of emission wavelengths from 490 to 451 nanometres. The emission colour is directly tuned by modifying the halide composition. Particularly, our blue and deep-blue light-emitting diodes based on three-dimensional perovskites show high EQE values of 11.0% and 5.5% with emission peaks at 477 and 467 nm, respectively. These achievements are enabled by a vapour-assisted crystallization technique, which largely mitigates local compositional heterogeneity and ion migration.

Efficient Blue Light Emitting Diodes Based On Europium Halide Perovskites

2021 ◽  
pp. 2101903
Author(s):  
Jiajun Luo ◽  
Longbo Yang ◽  
Zhifang Tan ◽  
Weiwei Xie ◽  
Qi Sun ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Halide Perovskites
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