State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
Inorg Chem. 2009 Nov 2;48(21):10193-201. doi: 10.1021/ic901655m.
Uniform NaLuF(4) nanowires and LuBO(3) microdisks have been successfully prepared by a designed chemical conversion method. The lutetium precursor nanowires were first prepared through a simple hydrothermal process. Subsequently, uniform NaLuF(4) nanowires and LuBO(3) microdisks were synthesized at the expense of the precursor by a hydrothermal conversion process. The whole process was carried out in aqueous condition without any organic solvents, surfactant, or catalyst. The conversion processes from precursor to the final products have been investigated in detail. The as-obtained Eu(3+) and Tb(3+)-doped LuBO(3) microdisks and NaLuF(4) nanowires show strong characteristic red and green emissions under ultraviolet excitation or low-voltage electron beam excitation. Moreover, the luminescence colors of the Eu(3+) and Tb(3+) codoped LuBO(3) samples can be tuned from red, orange, yellow, and green-yellow to green by simply adjusting the relative doping concentrations of the activator ions under a single wavelength excitation, which might find potential applications in the fields such as light display systems and optoelectronic devices.
通过设计的化学转化方法成功制备了均匀的 NaLuF(4)纳米线和 LuBO(3)微盘。首先通过简单的水热过程制备了镥前体纳米线。随后，通过水热转化过程，在牺牲前体的情况下合成了均匀的 NaLuF(4)纳米线和 LuBO(3)微盘。整个过程在水相条件下进行，无需任何有机溶剂、表面活性剂或催化剂。详细研究了从前体到最终产物的转化过程。所得 Eu(3+)和 Tb(3+)掺杂 LuBO(3)微盘和 NaLuF(4)纳米线在紫外光激发或低电压电子束激发下显示出强特征红光和绿光发射。此外，在单波长激发下，通过简单调整激活剂离子的相对掺杂浓度，Eu(3+)和 Tb(3+)共掺杂 LuBO(3)样品的发光颜色可以从红色、橙色、黄色和黄绿色调谐到绿色，这可能在光显示系统和光电设备等领域有潜在的应用。
