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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Investigation on combustion derived BaMgAl_(10)O_(17): Eu~(2+) phosphor powder and its corresponding PVP/BaMgAl_(10)O_(17):Eu~(2+) nanocomposite
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Investigation on combustion derived BaMgAl_(10)O_(17): Eu~(2+) phosphor powder and its corresponding PVP/BaMgAl_(10)O_(17):Eu~(2+) nanocomposite

机译：燃烧衍生BaMgAl_（10）O_（17）：Eu〜（2+）荧光粉及其对应的PVP / BaMgAl_（10）O_（17）：Eu〜（2+）纳米复合粉的研究

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摘要

This work focuses on the study of BaMgAl_(10)O_(17):Eu~(2+) (BAM:Eu) nanophosphors prepared by a microwaveassisted combustion procedure and more especially on the polymer/BAM:Eu nanocomposite film suitable for optical devices such as solid-state-lighting. Powder presented a specific nanomorphology, highly friable and thus easily ground into fine particles. They were then homogeneously dispersed into a polymer solution (poly(N-vinylpyrrolidone) or PVP) to elaborate a polymer phosphor nanocomposite. The structural, morphological and optical features of the nanocomposite film have been studied and compared to those of a pristine PVP film and BAM:Eu powder. All the characterizations (XRD, SEM, SAXS, etc.) proved that the blue phosphor nanoparticles are well incorporated into the polymer nanocomposite film which exhibited the characteristic blue emission of Eu~(2+) under UV light excitation. Furthermore, the photostability of the polymer/phosphor nanocomposite film has been studied after exposure to accelerated artificial photoageing at wavelengths above 300 nm.
机译：这项工作的重点是通过微波辅助燃烧程序制备的BaMgAl_（10）O_（17）：Eu〜（2+）（BAM：Eu）纳米磷光体的研究，尤其是适用于光学器件的聚合物/ BAM：Eu纳米复合膜例如固态照明。粉末呈现出特定的纳米形态，高度易碎，因此容易研磨成细颗粒。然后将它们均匀分散在聚合物溶液（聚（N-乙烯基吡咯烷酮）或PVP）中，以制备聚合物磷光体纳米复合材料。研究了纳米复合膜的结构，形态和光学特性，并将其与原始的PVP膜和BAM：Eu粉末进行了比较。所有表征（XRD，SEM，SAXS等）证明，蓝色荧光粉纳米颗粒已很好地掺入到聚合物纳米复合膜中，该膜在紫外光激发下具有Eu〜（2+）的特征性蓝光发射。此外，在暴露于大于300nm的波长的加速人工光老化之后，已经研究了聚合物/磷光体纳米复合膜的光稳定性。

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