Local structure and near-infrared emission features of neodymium-based amine functionalized organic/inorganic hybrids.
Local structure and near-infrared emission features of neodymium-based amine functionalized organic/inorganic hybrids.
复制标题
DOI：
10.1021/jp052097n
复制
发表时间：
2005-11
期刊：
影响因子：
--
通讯作者：
Maria do Carmo Gonçalves;N. J. O. Silva;V. D. Z. Bermudez;R. A. S. Ferreira;L. Carlos;K. Dahmouche;C. Santilli;D. Ostrovskii;I. C. C. Vilela-I.-C.-C.-Vilela-2271268503;A. Craievich
中科院分区：
文献类型：
--
作者：
Maria do Carmo Gonçalves;N. J. O. Silva;V. D. Z. Bermudez;R. A. S. Ferreira;L. Carlos;K. Dahmouche;C. Santilli;D. Ostrovskii;I. C. C. Vilela-I.-C.-C.-Vilela-2271268503;A. Craievich
基于Nd3+的有机/无机杂化材料在集成光学领域具有潜在的应用前景。用傅立叶变换中红外光谱(FT-IR)、拉曼光谱(FT-喇曼)、(29)Si幻角旋转(MAS)、核磁共振(核磁共振)和光致发光光谱(SAXS)研究了三氟化钕(NdCf(3)SO3)(3)掺杂的聚氧乙烯(POE)/硅氧烷(POE)杂化材料的红外光谱、拉曼光谱、光致发光光谱和小角X射线散射光谱。这项工作的目的是确定在所分析的每种材料中主体基质的哪个阳离子配位(乙氧原子或羰基氧原子)是活跃的，它对样品纳米结构的影响以及它与光致发光性能的关系。本研究得出的主要结论是，在整个材料中形成的氢键缔合对杂化材料的纳米结构和光致发光性能起着重要的作用。
Nd(3+)-based organic/inorganic hybrids have potential application in the field of integrated optics. Attractive sol-gel derived di-urea and di-urethane cross-linked poly(oxyethylene) (POE)/siloxane hybrids (di-ureasils and di-urethanesils, respectively) doped with neodymium triflate (Nd(CF(3)SO(3))(3)) were examined by Fourier transform mid-infrared (FT-IR), Raman (FT-Raman), (29)Si magic-angle spinning (MAS) nuclear magnetic resonance (NMR) and photoluminescence spectroscopies, and small-angle X-ray scattering (SAXS). The goals of this work were to determine which cation coordinating site of the host matrix (ether oxygen atoms or carbonyl oxygen atoms) is active in each of the materials analyzed, its influence on the nanostructure of the samples and its relation with the photoluminescence properties. The main conclusion derived from this study is that the hydrogen-bonded associations formed throughout the materials play a major role in the hybrids nanostructure and photoluminescence properties.