Solvent polishing engineering for quasi-two-dimensional perovskite blue light-emitting diodes.

Yuting XuLanlan ZhaiLijuan SunJingjing WangXingxing TanHe HuangYingyu WangGuanghong YangKemin JiangYun Yang Lijie Zhang Zhan'ao Tan Chao Zou

Published in: Chemical communications (Cambridge, England) (2022)

Solvent polishing engineering is adopted to remove the relatively loose defect layer without damaging carrier injection in blue perovskite light-emitting-diodes (PeLEDs). Synchronously, the polishing effects depending on the solvents are discussed in detail. Finally, optimized blue PeLEDs were obtained with a maximum external quantum efficiency of 5.18%, high brightness of 3737 cd m -2 , and a low turn-on voltage of 3.2 V.

Keyphrases

solar cells
ionic liquid
room temperature
light emitting
high efficiency
molecular dynamics
ultrasound guided
sensitive detection
solid state
single molecule
nk cells