Here, Gd-doped ${\text{CsPbCl}}_{1.5}{\mathrm{Br}}_{1.5}$ nanocrystals (NCs) in borosilicate glass matrix (${\mathrm{B}}_2{\mathrm{O}}_3\text{−}{\mathrm{SiO}}_2\text{−}\mathrm{ZnO}$) were prepared by melting quenching and in-situ crystallization. The optical performance of ${\text{CsPbCl}}_{1.5}{\mathrm{Br}}_{1.5}$ NCs glasses under different heat-treatment temperatures and the content of ${\mathrm{Gd}}^{3+}$ were analyzed in detail. After ${\text{CsPbCl}}_{1.5}{\mathrm{Br}}_{1.5}$ NCs glass is doped with ${\mathrm{Gd}}^{3+}$ ions, the photoluminescence intensity increases and the synthesized Gd-doped ${\text{CsPbCl}}_{1.5}{\mathrm{Br}}_{1.5}$ NCs glasses have excellent water stability and thermal cycling performance. In addition, the influence of Gd-doped concentrations and heat-treatment temperatures on the amplified spontaneous emission (ASE) thresholds of ${\text{CsPbCl}}_{1.5}{\mathrm{Br}}_{1.5}$ NCs glasses was studied, and the Gd-doped ${\text{CsPbCl}}_{1.5}{\mathrm{Br}}_{1.5}$ NCs glasses achieve controllable ASE thresholds at room temperature. The ASE threshold can be as low as $0.39{\mathrm{mJ}/\mathrm{cm}}^2$. This work offers a neoteric reference for the research in the application of metal ion-doped perovskite NCs and a new idea for the realization of controllable and low ASE thresholds on perovskite NCs.

中文翻译：

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用于调节和低阈值放大自发发射的超稳定 Gd3+ 掺杂 CsPbCl1.5Br1.5 纳米晶体蓝色玻璃

这里，掺 Gd ${\text{氯化铅}}_{1.5}{溴}_{1.5}$ 硼硅酸盐玻璃基质中的纳米晶体（NCs）（${\mathrm{乙}}_2{\mathrm{哦}}_3\text{-}{\mathrm{二氧化硅}}_2\text{-}\mathrm{氧化锌}$) 是通过熔融淬火和原位结晶制备的。光学性能${\text{氯化铅}}_{1.5}{溴}_{1.5}$ 不同热处理温度下的NCs玻璃及其含量 ${钆}^{3+}$进行了详细分析。后${\text{氯化铅}}_{1.5}{溴}_{1.5}$ NCs 玻璃掺杂 ${钆}^{3+}$ 离子，光致发光强度增加，合成的 Gd 掺杂 ${\text{氯化铅}}_{1.5}{溴}_{1.5}$NCs玻璃具有优异的水稳定性和热循环性能。此外，Gd 掺杂浓度和热处理温度对放大自发辐射 (ASE) 阈值的影响${\text{氯化铅}}_{1.5}{溴}_{1.5}$ 研究了 NCs 玻璃，掺 Gd ${\text{氯化铅}}_{1.5}{溴}_{1.5}$NCs 玻璃在室温下实现可控的 ASE 阈值。ASE 阈值可以低至$0.39{\mathrm{兆焦耳}/\mathrm{厘米}}^2$. 该工作为金属离子掺杂钙钛矿NCs的应用研究提供了新的参考，为实现钙钛矿NCs可控且低ASE阈值提供了新思路。