Large size single crystals of NaCl:Ce³⁺,XPr³⁺ (with X = 0.0, 0.002, 0.005, 0.008, 0.02, 0.05 and 0.08) were successfully grown by the melt (Czochralski) method and characterized structurally and optically. X-ray diffraction analysis has revealed the incorporation of Ce³⁺ and Pr³⁺ ions into the NaCl matrix and the creation of vacancy centers (Vʺ_Na) and positive defects (Ce_Na^●● and Pr_Na^●●) to keep the charge balance. Optical absorption spectral analysis has indicated the presence of absorption peaks at 214, 225, 305, 342, 446, 469, 483 and 592 nm. Photoluminescence (PL) spectral analysis (excited with 259 nm) has revealed dominant emission peaks at 386 and 390 nm due to 5d→4f transition of Ce³⁺ ions and sharp lines at 479, 491, 532, 600 and 621 nm due to ³P₁→³H₄, ³P₀→³H₄, ³P₁→³H₅, ³P₀→³H₆ and ³P₀→³F₂ transitions of Pr³⁺ ions. The energy transfer mechanism from Ce³⁺ to Pr³⁺ in the NaCl crystal has been described and the color coordinates of the luminescence of NaCl:Ce³⁺,XPr³⁺ crystals have been calculated by using the emission spectral data. The thermo-luminescence (TL) glow curves of NaCl:Ce³⁺,XPr³⁺ crystals obtained show three peaks at about 83, 150 and 239 °C, suitable trap depths induced by Ce³⁺ and Pr³⁺ and resulted in the characteristic emission. The TL mechanism of NaCl:Ce³⁺,XPr³⁺ crystals has been discussed. The photoluminescence and thermo-luminescence performances have been found to depend strongly on the Pr ion concentration and the maximum intensity has been obtained for the crystal with X = 0.008. Also, the increase in Pr ion concentration has led to gradual decrease of luminescence decay time.

大尺寸 NaCl:Ce ³⁺ ,XPr ³⁺单晶（X = 0.0、0.002、0.005、0.008、0.02、0.05和 0.08）通过熔体（直拉）法成功生长，并在结构和光学上进行了表征。X 射线衍射分析表明，Ce ³⁺和 Pr ³⁺离子掺入 NaCl 基质并产生空位中心 (Vʺ _Na ) 和正缺陷 (Ce _Na ^●●和 Pr _Na ^●●) 以保持电荷平衡。光吸收光谱分析表明在 214、225、305、342、446、469、483 和 592 nm 处存在吸收峰。光致发光 (PL) 光谱分析（用 259 nm 激发）显示，由于 Ce ³⁺离子的5d→4f 跃迁导致 386 和 390 nm 处的主要发射峰以及 479、491、532、600和 621 nm 处由于³ P ₁ → ³ H ₄ , ³ P ₀ → ³ H ₄ , ³ P ₁ → ³ H ₅ , ³ P ₀ → ³ H ₆和Pr ³⁺离子的³ P ₀ → ³ F ₂跃迁。描述了NaCl晶体中从Ce ³⁺到Pr ³⁺的能量转移机制，并利用发射光谱数据计算了NaCl:Ce ³⁺ ,XPr ³⁺晶体的发光色坐标。得到的 NaCl:Ce ³⁺ ,XPr ³⁺晶体的热发光 (TL) 辉光曲线在大约83、150和 239 °C 处显示三个峰，由 Ce ³⁺和 Pr ³⁺诱导的合适的陷阱深度导致特征发射。NaCl:Ce的TL机制³⁺ ,XPr ³⁺晶体已经讨论过。已发现光致发光和热致发光性能强烈依赖于 Pr 离子浓度，并且已获得 X = 0.008 晶体的最大强度。此外，Pr离子浓度的增加导致发光衰减时间逐渐减少。