Abstract As a kind of rare earth luminescent material, the development of white light-emitting glass cannot be ignored. Here, we successfully prepared series of Tm3+-Dy3+ co-doped P2O5-SrO-BaO-ZnO glasses. Structural analysis showed that the glass network is mainly composed of orthophosphate, pyrophosphate, and metaphosphate units. In the case of a certain content of Tm3+ or Dy3+, the densities of PSBZ glasses increased with the increasing of Dy3+ or Tm3+ content. From the optical absorption spectra, eight distinctive absorption bands can be found in the wavelength of 300 nm–750 nm. Under the excitation of 354 nm UV light, four main peaks corresponded to the transition of 1D2 → 3F4 and 4F9/2 → 6HJ (J = 15/2, 13/2 and 11/2) were found at 452 nm, 483 nm, 574 nm, and 663 nm, respectively. Besides, the CIE chromaticity coordinates, CCTs, and fluorescence decay curves were recorded to confirm the glass Tm0.4Dy1.0 showed excellent chromaticity coordinates (0.3392, 0.3334), suitable CCT (5188K) and relatively high fluorescence lifetime (434.68 μs) compared to other glasses prepared in this work, indicating that this glass has potential applications in WLED devices.

中文翻译：

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白光发光二极管用Tm3+-Dy3+共掺杂磷酸盐玻璃的制备及发光性能

摘要 作为一种稀土发光材料，白光发光玻璃的发展不容忽视。在这里，我们成功制备了一系列 Tm3+-Dy3+ 共掺杂 P2O5-SrO-BaO-ZnO 玻璃。结构分析表明，玻璃网络主要由正磷酸盐、焦磷酸盐和偏磷酸盐单元组成。在Tm3+或Dy3+含量一定的情况下，PSBZ玻璃的密度随着Dy3+或Tm3+含量的增加而增加。从光吸收光谱中，可以在 300 nm–750 nm 的波长范围内找到八个不同的吸收带。在 354 nm 紫外光激发下，在 452 nm、483 nm 处发现了对应于 1D2 → 3F4 和 4F9/2 → 6HJ（J = 15/2、13/2 和 11/2）跃迁的四个主峰，分别为 574 nm 和 663 nm。此外，CIE 色度坐标、CCT、