White Light Emission in Europium‐Doped Inorganic Perovskite Single Matrix

• DOI: 10.1002/adfm.202416112
• Publication Date: 2024-11-04T06:15:04Z
• Authors: Junyu He; Tongqing Sun; Min Li; Anshi Chu; Xiujuan Zhuang
• Keywords: Europium; Matrix (chemical analysis); White (mutation)

Abstract The realization of stable single‐component white light emission in metal halide perovskites is still challenging due to the fast ion migration and narrow luminescence bands. In this work, all‐inorganic single CsPbCl x Br 3−x perovskite microplates with red‐blue‐green triple color are prepared by introducing europium ions Eu 3+ as dopants. doping effectively suppresses enables two spatially separated phases dual‐wavelength emissions. Furthermore, incorporation compensates for absence red‐light emission, thereby yielding a superior exceptional quality. rendering index triple‐color‐emitting can be tuned successfully controlling halogen ratios, optimal microplate achieved Commissions Internationale de l’Eclairage (CIE) coordinates (0.32, 0.32). results present new enlightenment preparation low‐cost materials.