掺杂Eu2 +的BaBrI和SrBrI单晶的发光
Luminescence of BaBrI and SrBrI single crystals doped with Eu2+
摘要：
报道了纯BaBrI和SrBrI晶体和掺Eu $^{2+}$晶体的生长过程和发光性能。在紫外和真空紫外激发下记录了发射光谱和激发光谱。得到了Eu $^{2+}$ 4f-5d第一跃迁的能量和SrBrI的带隙。电子结构计算在GW近似内进行，如在Vienna Ab Initio Simulation Package中实现的。根据发光猝灭参数，确定了Eu $^{2+}$ 5d最低态与导带底之间的能量。利用化学位移模型，绘制了镧系元素能级的真空参考结合能图。
英文摘要：
The crystal growth procedure and luminescence properties of pure and Eu$^{2+}$-doped BaBrI and SrBrI crystals are reported. Emission and excitation spectra were recorded under ultraviolet and vacuum ultraviolet excitations. The energy of the first Eu$^{2+}$ 4f-5d transition and SrBrI band gap are obtained. The electronic structure calculations were performed within GW approximation as implemented in the Vienna Ab Initio Simulation Package. The energy between lowest Eu$^{2+}$ 5d state and the bottom of conduction band are found based on luminescence quenching parameters. The vacuum referred binding energy diagram of lanthanide levels was constructed using the chemical shift model.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
