Lin Hui-hong, Liang Hong-bin, Su Qiang, Zhang Guo-bin
Department of Chemistry, Hanshan Normal University, Chaozhou 521041, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2011 Jul;31(7):1743-6.
The phosphors of Tb3+ activated Sr2 Mg(B03)2 were prepared by high temperature solid-state reaction technique. The phase purity was characterized by the powder X-ray diffraction (XRD). The luminescence properties in VUV-Vis range as well as the decay curves were investigated. The results demonstrate that the band near 178 nm in the VUTV excitation spectra is ascribed to the host-related absorption. The bands of lowest spin-allowed and spin-forbidden f--d transition are located at 235 and 278 nm, respectively. The strongest emission is at 543 nm upon 172 nm excitation and with the color coordinate (0.30, 0.45). The decay time is about 2.8 ms.
采用高温固相反应技术制备了Tb3+激活的Sr2Mg(BO3)2荧光粉。通过粉末X射线衍射（XRD）对相纯度进行了表征。研究了其在真空紫外-可见光范围内的发光特性以及衰减曲线。结果表明，真空紫外激发光谱中178nm附近的能带归因于基质相关吸收。最低自旋允许和自旋禁戒的f-d跃迁能带分别位于235nm和278nm处。在172nm激发下，最强发射峰位于543nm，色坐标为(0.30, 0.45)。衰减时间约为2.8ms。
