Abstract Photoluminescence (PL) and radioluminescence properties of Pr-doped lanthanum aluminoborate glasses with the composition xPr-20La2O3-30Al2O3-50B2O3 (0 ≤ x ≤ 1.0) were studied. In the PL spectra, the characteristic emission bands due to both f–f and the d–f transitions of Pr3+ were confirmed for the glass system. In X-ray induced scintillation spectra, emission from the host matrix was observed in addition to emission bands from d–f and the f–f transitions of Pr3+; the peak area ratio of the host to the f–f transition depended on the Pr content. It is significant that emission from the host was confirmed in both X-ray-induced scintillation and thermally stimulated luminescence, and the emission intensity from the host decreased with an increase in the Pr content. It is suggested that doping with Pr decreases the number of trap sites in the host glass.

中文翻译：

---

Pr掺杂的铝硼酸镧玻璃中的光致发光和辐射发光

摘要 研究了组分为xPr-20La2O3-30Al2O3-50B2O3 (0 ≤ x ≤ 1.0) 的掺Pr 铝硼酸镧玻璃的光致发光(PL) 和辐射发光特性。在 PL 光谱中，由 f-f 和 Pr3+ 的 d-f 跃迁引起的特征发射带在玻璃系统中得到证实。在 X 射线诱导的闪烁光谱中，除了来自 d-f 的发射带和 Pr3+ 的 f-f 跃迁之外，还观察到来自主体基质的发射；主体与 f-f 跃迁的峰面积比取决于 Pr 含量。重要的是，在 X 射线诱导闪烁和热激发发光中都证实了来自主体的发射，并且主体的发射强度随着 Pr 含量的增加而降低。