In this work, Eu³⁺-doped CsPbCl₂Br₁ in borosilicate glass was successfully synthesized by the melt quenching annealing technique and crystallization method. This work reports a novel Eu³⁺-doped CsPbCl₂Br₁ perovskite quantum dots (QDs) glass with high sensitivity for optical temperature sensing. The relation of fluorescence intensity ratio (FIR) with the temperature was studied in the temperature range of 80–440 K. Notably, the maximum absolute temperature sensitivity (S_a) and relative temperature sensitivity (S_r) of Eu³⁺-doped CsPbCl₂Br₁ perovskite QDs glass can reach as high as 0.0315 K^–1 and 3.097%/K, respectively. Meanwhile, Eu³⁺-doped CsPbCl₂Br₁ QDs glass demonstrates good water resistance, excellent thermal and cold cycling stability performance. The Eu³⁺-doped QDs glass materials can bring inspiration to the future exploration of rare earth ion-doped QDs glass material on the application of optical temperature sensing in the future.

本工作采用熔体淬火退火技术和结晶法成功合成了硼硅玻璃中掺Eu ^{3+ 的}CsPbCl ₂ Br ₁。这项工作报告了一种新型的 Eu ³⁺掺杂的 CsPbCl ₂ Br ₁钙钛矿量子点 (QDs) 玻璃，它对光学温度传感具有高灵敏度。在80-440 K的温度范围内研究了荧光强度比（FIR）与温度的关系。值得注意的是，Eu ³⁺掺杂的CsPbCl的最大绝对温度灵敏度（S _a）和相对温度灵敏度（S _r）₂溴₁钙钛矿 QDs 玻璃可以分别达到 0.0315 K ^–1和 3.097%/K。同时，Eu ³⁺掺杂的CsPbCl ₂ Br ₁ QDs玻璃表现出良好的耐水性、优异的热循环和冷循环稳定性能。Eu ³⁺掺杂量子点玻璃材料可以为未来稀土离子掺杂量子点玻璃材料在光学温度传感应用方面的探索带来启示。