Abstract Eu3+ and Ce3+ singly doped as well as co-doped into sodium-zinc-lead-borate (NZPB) glass were prepared by the melt-quenching technique. Optical spectra including excitation, emission spectra of Ce3+ and Eu3+ as well as decay curves for the excitation levels were measured at room temperature. The optical properties and the application ability of Eu3+-doped NZPB glass were analyzed by Judd-Ofelt theory. The host referred binding energy (HRBE) schemes of divalent and trivalent rare earth ions in NZPB glass were constructed using the luminescence excitation spectra of Eu3+ and Ce3+ ions. In the NZPB glass co-doped with Ce3+ and Eu3+ ions, the luminescence intensity and lifetime of the Ce3+:5d1 level decrease with the increasing Eu3+concentration. The luminescence quenching and lifetime of the Ce3+:5d1 level are related to two mechanisms of the resonance energy transfer and electron transfer. These transfer mechanisms were discussed in detail by using the 4fn:Ln3+ energy diagrams and the HRBE schemes.

中文翻译：

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钠-锌-铅-硼酸盐玻璃中Eu3+的光谱和Ce3+向Eu3+的能量转移研究

摘要 采用熔融淬火技术制备了Eu3+和Ce3+单掺杂和共掺杂到钠-锌-硼酸铅(NZPB)玻璃中。在室温下测量了光谱，包括 Ce3+ 和 Eu3+ 的激发、发射光谱以及激发能级的衰减曲线。采用Judd-Ofelt理论分析了掺Eu3+的NZPB玻璃的光学性能和应用能力。使用Eu3+和Ce3+离子的发光激发光谱构建NZPB玻璃中二价和三价稀土离子的宿主参考结合能(HRBE)方案。在共掺杂Ce3+和Eu3+离子的NZPB玻璃中，Ce3+:5d1能级的发光强度和寿命随着Eu3+浓度的增加而降低。Ce3+的发光猝灭和寿命：5d1能级与共振能量转移和电子转移两种机制有关。通过使用 4fn:Ln3+ 能量图和 HRBE 方案详细讨论了这些转移机制。