Preparation and characterization of photoluminescent ultrathin films based on polyoxometalates

Lin Xu; Hongyu Zhang; Enbo Wang; Aiguo Wu; Zhuang Li

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Preparation and characterization of photoluminescent ultrathin films based on polyoxometalates

机译：基于多金属氧酸盐的光致发光超薄膜的制备与表征

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Ultrathin multilayer films of a polyoxotungstoeuropate cluster K_(15)[Eu(BW_(11)O_(39))_2](Eu(BW_(11))_2) and poly(allylamine hydrochloride) (PAH) have been prepared by the layer-by-layer (LbL) self-assembly method. The Eu(BW_(11))_2/PAH multilayer films have been characterized by X-ray photoelectron spectra (XPS) and atomic force microscopy (AFM). UV-VIS measurements reveal regular film growth with each Eu(BW_(11))_2 adsorption. The photoluminescent behavior of the film at room temperature was investigated to show the characteristic Eu~(3+) emission pattern of ~5D_0 → ~7F_J. The occurrence of photoluminescent activity confirms the potential for creating luminescent multilayers with polyoxometalates (POMs).

机译：通过该层制备了聚氧钨硬金属酸盐簇K_（15）[Eu（BW_（11）O_（39））_ 2]（Eu（BW_（11））_ 2）和聚（烯丙胺盐酸盐）（PAH）的超薄多层膜层（LbL）自组装方法。 Eu（BW_（11））_ 2 / PAH多层膜已通过X射线光电子能谱（XPS）和原子力显微镜（AFM）进行了表征。 UV-VIS测量表明，每次Eu（BW_（11））_ 2吸附都会有规律的膜生长。研究了该膜在室温下的光致发光行为，显示了〜5D_0→〜7F_J的特征Eu〜（3+）发射模式。光致发光活性的出现证实了用多金属氧酸盐（POM）产生发光多层的潜力。

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来源
《Materials Chemistry and Physics》 |2003年第2期|p.484-488|共5页
作者
Lin Xu; Hongyu Zhang; Enbo Wang; Aiguo Wu; Zhuang Li;
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作者单位

Department of Chemistry, Northeast Normal University, Changchun 130024, PR China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;工程基础科学;
关键词
polyoxometalates; polyelectrolyte; layer-by-layer; ultrathin multilayer film; luminescence;

机译：多金属氧酸盐聚电解质逐层超薄多层膜发光的;

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机译：基于溶胶 - 凝胶技术的薄膜制备与表征及光谱探针成膜与表征的研究进展。

Preparation and characterization of photoluminescent ultrathin films based on polyoxometalates

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