Quantum‐Well Encapsulation Enabling Air‐Processed Quasi‐2D Perovskites with Long‐Term Stability for Large‐Area Deep‐Blue Light‐Emitting Diodes

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Hydrolysis method enhances stability and photoluminescence in quasi-2D perovskites, suggesting improved PeLED performance.

Deep-blue light-emitting diodes exhibit remarkable color stability even after 2160 hours of exposure in air.
The research achieved a record external quantum efficiency of 4.02% for air-processed blue devices.
Quantum well encapsulation significantly enhances the stability and optical tunability of blue perovskite films.
Encapsulation with hydrolysis-generated oxo-bridged networks highlights a promising development for commercial display technologies.

Guo et al. (2025) studied this question.

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