CsPbX₃ (X = Cl, Br, I) nanocrystals (NCs) glasses formed utilizing conventional melt-quenching with a subsequent heat-treatment method demonstrate excellent performance and can resist temperature and light irradiation; further, CsPbX₃ NCs glasses have improved stability in air and water when compared to traditional way. Nevertheless, one of the fatal disadvantages of CsPbX₃ NCs glasses are their low photoluminescence quantum yields (PLQY). Here, we demonstrate a new avenue that K⁺ ions doped CsPbBr₃ NCs glasses (K-CPB NCs glasses) systems utilizing K_xCs_1−xPbBr₃ (x = 0, 0.2, 0.4, 0.6, 0.8, 1) NCs glasses, and we surprisingly find that K_0.6Cs_0.4PbBr₃ NCs glass reaches the highest PLQY of 62% when the molar ratio of K⁺/Cs⁺ = 0.6/0.4. Meanwhile, in comparative experiments, we have noticed that K_0.6Cs_0.4PbBr₃ NCs glass has better water resistance and thermal stability than CsPbBr₃ NCs glasses what we had before. K-CPB NCs glasses has a significantly improved applications scope for cesium lead halide perovskite in the field of photoelectricity, such as solar cells and perovskite light-emitting diodes (PeLEDs). In addition, we have successfully fabricated the pure phase of KPbBr₃ NCs glass and its existence has been proven via a series of representational means, consequently, this research opens the door for the further study of perovskite materials. Fortunately, K-CPB NCs glasses perform better in optical third-order nonlinearity, and we believe these findings will promote its applications in nonlinear optoelectronic devices. Ultimately, white LEDs (WLEDs) has been successfully equipped with K_0.6Cs_0.4PbBr₃ NCs glass, which presents excellent optical parameters.

利用常规的熔融淬火和随后的热处理方法形成的CsPbX ₃（X = Cl，Br，I）纳米晶体（NCs）玻璃表现出优异的性能，并且可以抵抗温度和光辐射。此外，与传统方式相比，CsPbX ₃ NCs眼镜在空气和水中的稳定性得到了改善。然而，CsPbX ₃ NCs玻璃的致命缺点之一是其低的光致发光量子产率（PLQY）。在这里，我们演示了利用K _x Cs _1-x PbBr ₃掺杂K ⁺离子的CsPbBr ₃ NCs眼镜（K-CPB NCs眼镜）的新途径。（x = 0、0.2、0.4、0.6、0.8、1 ）NCs玻璃，我们惊奇地发现，当K ⁺ / Cs ⁺  = 0.6时，K _0.6 Cs _0.4 PbBr ₃ NCs玻璃达到62％的最高PLQY /0.4。同时，在对比实验中，我们注意到K _0.6 Cs _0.4 PbBr ₃ NCs玻璃具有比CsPbBr ₃更好的耐水性和热稳定性。NCs眼镜我们以前拥有过。K-CPB NCs玻璃在太阳能电池和钙钛矿发光二极管（PeLEDs）等光电领域中具有显着改善的卤化铯铅钙钛矿的应用范围。此外，我们已经成功地制备了KPbBr ₃ NCs玻璃的纯相，并通过一系列代表性方法证明了其存在，因此，该研究为钙钛矿材料的进一步研究打开了大门。幸运的是，K-CPB NCs眼镜在光学三阶非线性方面表现更好，我们相信这些发现将促进其在非线性光电器件中的应用。最终，白光LED（WLED）成功地配备了K _0.6 Cs _0.4 PbBr ₃ NCs玻璃，具有出色的光学参数。