Nature, Published online: 10 June 2026; doi:10. 1038/s41586-026-10596-3 Efficient blue perovskite light-emitting diodes with an external quantum efficiency of 21. 8% are achieved through in situ polymerization-driven nanocrystal confinement.

Source: [Nature](https://www.nature.com/articles/s41586-026-10596-3)

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