基于低温固相法AlN:Tb荧光纳米材料的制备研究

Preparation of AlN:Tb Fluorescent Nanomaterials Based on Low Temperature Solid-State Route

摘要: 在温度为900℃、Tb3+掺杂的摩尔分数为0.5%、通气速率为80 ml/min、保温时间为4 h的最佳反应条件下，采用低温固相法合成了性能优良的AlN:Tb3+荧光纳米材料。通过XRD进行了物相分析，结果表明此样品为纯六方纤锌矿结构的AlN，结晶好，无杂质峰。采用荧光光谱仪进行光谱测试，结果表明此样品在259 nm的紫外光激发下，有效激发出中心波长为550 nm的绿色荧光。本文为产业上制备出性能优良的AlN:Tb3+荧光纳米材料提供了一定的理论支持。

Abstract: Under the optimal reaction conditions of 900℃ and aeration rate of 80 ml/min, Tb3+ doping con-centration of 0.5%, and holding time of 4 h, AlN:Tb3+ fluorescent nanomaterials with excellent properties were synthesized by low temperature solid-state route. The phase analysis by XRD showed that the sample was pure N-type wurtzite structure AlN, which had good crystallinity and no impurity peak. Spectroscopic measurements were carried out using a fluorescence spectrometer. The results show that the sample is excited by ultraviolet light at 259 nm to effectively excite green fluorescence with a center wavelength of 550 nm. This paper provides some theoretical support for the industrial preparation of AlN:Tb3+ fluorescent nanomaterials with excellent performance.