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纳米YAG:Eu3+荧光体的微波合成

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Abstract:

以分析纯Y2O3、Eu2O3和Al(NO3)3×9H2O为原料、尿素为沉淀剂,采用微波合成成功制备纳米Y3Al5O12Eu3+(YAGEu3+)荧光体。通过X射线衍射,透射电子显微技术以及荧光光谱分析等材料表征手段,深入研究微波辐照对荧光体结晶度、形貌及荧光特性的影响。结果表明采用微波合成制取的YAGEu3+荧光体具有较好的结晶度和均匀的粒度分布,其激发光谱和发射光谱均为尖锐的窄带发射,相应的最强峰波长分别为395nm和590nm,其荧光强度随微波辐照时间的增加而提高。

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