室温下Yb3+和Er3+掺杂的NaYS2粉末材料的Stocks和Anti-Stocks发光

摘要

NaYS2∶ 0.20Yb3+,0.03Er3+ and NaYS2∶ 0.03Er3+ powder samples were synthesized with solid-state reacting methods,respectively.The Stocks and Anti-Stocks light-emitting properties with Er3+ were researched.Dependences of the emission features on excited population processes were exhibited with the spectra obtained following an excitation,respectively,at 980,532 and 408 nm.Effects of local field of doped Re3 + (Re3 + standing for Yb3 + or Er3 +) on S2-Re3 + charge transfer state (CTS) were observed.Further,the energy-transfer processes between Yb3 + and Er3 + based on the energy matching conditions and the Stocks and Anti-Stocks emission mechanism with Er3 + should be suggested with schematic energy-level schemes.%合成了NaYS2∶0.20Yb3,0.03 Er3+和NaYS2∶0.03Er3+粉末材料,通过材料的Stocks和Anti-Stocks光谱,研究了Er3+和yb3+跃迁几率对激发方式的依赖特征,以及局域环境对S2-Re3(Re3+=yb3+或Er3+)电荷迁移态的影响,探讨了在共掺杂和单掺杂状态下yb3+和Er3+间的能量传递和Er3+的Stocks和Anti-Stocks辐射跃迁机制.