Abstract
CsPbX3 perovskite nanocrystals (NCs) are still limited in their use due to their extreme instability in the air as they will deteriorate in a few days, and their thermal stability is not optimistic. In this study, the red CsPbBrxI3-x (X = 1.5, 1.0, 0.8, 0.5, 0.35, 0) NCs and Mn-doped CsPbBrxI3-x NC in zinc borosilicate (B2O3-SiO2-ZnO) glass with cubic perovskite crystal structure were successfully synthesized through melt-quenching and heat-treatment method, which exhibited strong red emission in region of 572 nm–708 nm under 365 nm excitation. Additionally they are stable in the air for several months while showing excellent thermal stability. It is worth mentioning that Mn-doped CsPbBrxI3-x NC glasses are brighter than CsPbBrxI3-x NC glasses under UV light. Because Mn-doped CsPbBrxI3-x NC glasses have good thermal and air stability, they can be used as a red fluorescent material. We fabricated glass with Y3Al5O12:Ce3+ (YAG:Ce3+) phosphor-in-glass (PiG) realized the chromaticity tuning for YAG:Ce3+ phosphor with white light-emitting-diodes (WLED).
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