Synthesis of materials by combustion technique results in homogeneous and fine crystalline product. Further, the technique became more popular since it not only saved time and energy but also was easy to process. Aluminum oxide phosphor was synthesized by using urea as fuel in combustion reaction. Photoluminescence (PL) and thermally stimulated luminescence (TSL) characteristics of e???-irradiated aluminum oxide samples were studied. A broad PL emission with a peak at a?? 465 nm and a pair of strong and sharp emissions with peaks at 679 and 695 nm were observed in e???-rayed samples. The PL intensity was observed to increase with increase in e???-ray dose. Two prominent and well resolved TSL glows with peaks at 210?°C and 365?°C were observed in all e???-irradiated Al2O3 samples. The TSL intensity was also found to increase with increase in e???-ray dose. The TSL glow curves indicated second order kinetics.
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机译：通过燃烧技术合成材料产生均匀且精细的结晶产物。此外，由于该技术不仅节省时间和能量，而且易于处理，因此变得更加流行。以尿素为燃料在燃烧反应中合成了氧化铝荧光粉。研究了被Eγ照射的氧化铝样品的光致发光（PL）和热激发发光（TSL）特性。广泛的PL发射，在a ??处有一个峰值。在用γ-射线照射的样品中观察到465nm和一对强而尖锐的发射，在679和695nm处有峰。观察到PL强度随e-射线剂量的增加而增加。在所有被eγ辐照的Al 2 O 3 样品中观察到两个突出且分辨良好的TSL发光，其峰值分别在210℃和365℃。还发现TSL强度随e-射线剂量的增加而增加。 TSL辉光曲线表示二阶动力学。
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