Suppressing interfacial nonradiative recombination with an acetate interlayer for high-performance pure blue
Ziqiang Chen1, Minfei Lan1, Zhirui Liu1
1College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China. zhaill@wzu.edu.cn.
Chemical Communications (Cambridge, England)
|April 22, 2026
Abstract
None:
Rapid crystallization kinetics of quasi-2D perovskite leads to interfacial defects, which exacerbates nonradiative recombination at the bottom of the perovskite film. Here, CH3COOLi is intercalated prior to perovskite film. Benefiting from their dual effects of retarding the crystallization rate and reducing the formation of n = 1 phase, quasi-2D blue PeLED achieves a peak external quantum efficiency of 9.9% at 474 nm.
