Remarkable Photostability Enhancement in FAPbBr₃ Perovskite Nanocrystal Polymer Films via Lecithin Passivation

Key Points

• To develop a method to enhance the photostability of perovskite nanocrystals for practical applications.
• Investigated the effect of lecithin on perovskite nanocrystal stability.
• Assessed optical performance under photo-irradiation and moisture exposure.
• Utilized polymer film matrices for encapsulating nanocrystals.
• Significantly improved photostability of FAPbBr₃ perovskite nanocrystals was achieved.
• Lecithin passivation effectively reduced degradation under ambient moisture.
• Stabilization strategies may broaden the application scope of perovskite materials.