Ultra-stable CsPbBr₃ perovskite quantum dots (QDs) multicomponent glass with high transmittance was prepared by melt-quenching heat treatment. The average diameter of the CsPbBr₃ QDs was ∼1.96 nm. The resulting glass displayed a high exciton binding energy of 362 ± 18 meV. Notably, these glass-encapsulated materials exhibited excellent resistance to heat, light, and water, superior to that of previously reported perovskite-based materials, and underwent an extremely low rate of Pb leaching during water immersion. Based on the glass, a high-performance white light-emitting diode (WLED) device was fabricated with Commission Internationale de L’Eclairage (CIE) coordinates of (0.3156, 0.3326) and color gamut of ∼113 % National Television Standards Committee (NTSC). The CsPbBr₃ QDs glass without rare earth elements further acted as an optical gain medium, realizing up-conversion lasing with 980-nm laser excitation for the first time. The reversible linear fluorescence response indicates that the glass could be a potential candidate for temperature sensors.

通过熔融淬火热处理制备了具有高透射率的超稳定CsPbBr ₃钙钛矿量子点（QDs）多组分玻璃。CsPbBr ₃ QD的平均直径约为1.96 nm。所得玻璃显示出362±18meV的高激子结合能。值得注意的是，这些玻璃封装材料表现出优异的耐热，耐光和防水性能，优于先前报道的钙钛矿基材料，并且在浸入水中时铅的浸出率极低。以玻璃为基础，制造了一种高性能的白光发光二极管（WLED）器件，其国际照明委员会（CIE）坐标为（0.3156，0.3326），色域为〜113％国家电视标准委员会（NTSC） ）。溴化铯不含稀土元素的₃ QDs玻璃进一步充当光增益介质，首次通过980 nm激光激发实现上转换激光。可逆的线性荧光响应表明玻璃可能是温度传感器的潜在候选者。