Highly transparent and luminescent lanthanide ion-containing bridged polysilsesquioxanes
Highly transparent and luminescent lanthanide ion-containing bridged polysilsesquioxanes
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DOI：
10.1039/c0pp00197j
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发表时间：
2011-01
影响因子：
3.1
通讯作者：
Yige Wang;N. Lin
中科院分区：
文献类型：
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作者：
Yige Wang;N. Lin
将前驱体在酸性条件下水解缩合得到了新型的高透明发光桥接聚硅氧烷单体。用FTIR光谱、光致发光光谱和扫描电镜对其进行了表征，并证实了其作为Eu_3+、Tb_3+和Nd_3+离子的载体。Tb_3+在宿主体内的发光寿命为2.1 ms。红外光谱证实了宿主与镧系离子的相互作用。确定了与Eu_3+离子配位的水分子数为1。加入Nd_3+作为客体，得到了nir发光材料。
Novel luminescent bridged polysilsesquioxane monoliths of high transparency have been obtained by hydrolysis and condensation of the precursor under acidic conditions. The monoliths were characterized by FTIR spectroscopy, photoluminescence spectroscopy, and SEM, and they have been used as hosts of Eu_3+, Tb_3+ and Nd_3+ ions. The luminescence lifetime of Tb_3+ in this host was 2.1 ms. The interaction between the host and the lanthanide ions could be confirmed by FTIR spectra. The number of water molecules coordinated to the Eu_3+ ions was determined to be one. Incorporation of Nd_3+ as guest resulted in NIR-luminescent materials.