Abstract The luminescence properties of the Mn4+ and Cr3+-activated fluoride and oxide phosphors have been discussed in detail. The Mn4+ and Cr3+-activated fluoride and oxide phosphors can be classified into five types from an aspect of the different luminescence properties: F–Mn, F–Cr, O–Mn, O–Cr-A, and O–Cr–B. The representative phosphors considered here are: BaSiF6:Mn4+ (type F–Mn), K2NaScF6:Cr3+ (type F–Cr), Sr2MgGe2O7:Mn4+ (type O–Mn), MgAl2O4:Cr3+ (type O–Cr-A), and BaZrSi3O9:Cr3+ (type O–Cr–B). The photoluminescence (PL) and PL excitation spectra are analyzed based on the Franck−Condon analysis model with considering the electron−lattice vibration interaction (Huang−Rhys factors). The Racah and crystal-field-related parameters of such phosphors are determined and plotted very well on the Tanabe−Sugano energy-level diagram curve.

中文翻译：

---

红色和深红色荧光粉中的 Mn4+ 和 Cr3+ 离子：光谱分析和 Racah 参数测定

摘要 详细讨论了Mn4+和Cr3+激活的氟化物和氧化物荧光粉的发光特性。Mn4+和Cr3+激活的氟化物和氧化物荧光粉从发光特性的不同可以分为五种类型：F-Mn、F-Cr、O-Mn、O-Cr-A和O-Cr-B。这里考虑的代表性磷光体是：BaSiF6:Mn4+（F-Mn 型）、K2NaScF6:Cr3+（F-Cr 型）、Sr2MgGe2O7:Mn4+（O-Mn 型）、MgAl2O4:Cr3+（O-Cr-A 型）和BaZrSi3O9:Cr3+（O-Cr-B 型）。基于 Franck-Condon 分析模型并考虑电子-晶格振动相互作用（Huang-Rhys 因子）分析光致发光 (PL) 和 PL 激发光谱。这些磷光体的 Racah 和晶体场相关参数被确定并很好地绘制在 Tanabe-Sugano 能级图曲线上。