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Thermally stimulated luminescence studies in combustion synthesized polycrystalline aluminum oxide

机译：燃烧中的热刺激发光研究合成多晶氧化铝

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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 γ-irradiated aluminum oxide samples were studied. A broad PL emission with a peak at â¼465 nm and a pair of strong and sharp emissions with peaks at 679 and 695 nm were observed in grayed samples. The PL intensity was observed to increase with increase in γ-ray dose. Two prominent and well resolved TSL glows with peaks at 210°C and 365°C were observed in all γ-irradiated Al2O3 samples. The TSL intensity was also found to increase with increase in γ-ray dose. The TSL glow curves indicated second order kinetics. © Indian Academy of Sciences.
机译：通过燃烧技术合成材料，导致均匀和细细的产品。此外，该技术变得更受欢迎，因为它不仅节省了时间和能量，而且很容易处理。通过使用尿素作为燃烧反应中的燃料合成氧化铝磷光体。研究了光致发光（PL）和热刺激的诸如辐射氧化铝样品的发光（TSL）特性。在灰色的样品中观察到浅PL发射β465nm处的峰值和一对具有679和695nm的峰值的强烈和急剧排放。观察到PL强度随着诸如何射线剂量的增加而增加。在所有何种次辐照的Al2O3样品中，观察到两个突出且良好的分辨的TSL在210°C和365℃下观察到365℃。还发现TSL强度随着诸雷射线剂量的增加而增加。 TSL发光曲线指示二阶动力学。 ©印度科学院。

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