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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Structural and spectroscopic characterization of poly(styrene sulfonate) films doped with neodymium ions
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Structural and spectroscopic characterization of poly(styrene sulfonate) films doped with neodymium ions

机译：掺钕离子的聚（苯乙烯磺酸盐）薄膜的结构和光谱表征

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This work reports the structural and spectroscopy characterization of poly(styrene sulfonate) (PSS) films doped with neodymium (Nd) ions. Nd-PSS films were processed using the acid of poly(styrene sulfonate) - H-PSS and neodymium nitrate - Nd(NO3)(3); the maximum incorporation of Nd ions in the polymeric matrix was equal 19.3%. The absorption in the UV-Vis-NIR spectral region presents typical electronic transitions of Nd 3, ions, with well resolved peaks. The infrared spectra present the transition bands of PSS with characteristic line shape broadening, and the presence of vibrational modes of N-O groups in the range of 1400-720 cm(-1), prove the permanence of Nd(NO3)(x), with x = 1, 2 and/or 3. in the H-PSS matrix. UV-Vis site selective photoluminescence data indicate that the incorporation of Nd 31 introduces a blue shift in PSS emission (325-800 nm), decreasing the interaction between adjacent PSS lateral groups (aromatic rings). Nd3+ reabsorption and energy transfer effects between the PSS matrix and Nd3+ were also observed. The IR emission of Nd-PSS films at 1076 rim (F-4(3/2) -> I-4(11/2)) present constant efficiency, independent on Nd3+ concentration. The Judd-Ofelt theory was employed to analyze radiative properties. The excitation spectra prove the energy transfer between the polymeric matrix and Nd3+. Complex impedance data was used to probe relaxation processes during the charge transport within the polymeric matrix.
机译：这项工作报告了掺钕（Nd）离子的聚（苯乙烯磺酸盐）（PSS）薄膜的结构和光谱表征。使用聚苯乙烯磺酸盐-H-PSS和硝酸钕-Nd（NO3）（3）的酸处理Nd-PSS膜; Nd离子在聚合物基质中的最大掺入量等于19.3％。 UV-Vis-NIR光谱区域中的吸收呈现Nd 3离子的典型电子跃迁，并具有良好分辨的峰。红外光谱显示PSS的过渡带具有特征性的线形展宽，并且NO基团在1400-720 cm（-1）范围内的振动模式的存在证明了Nd（NO3）（x）的持久性，在H-PSS矩阵中x = 1、2和/或3。 UV-Vis站点选择性光致发光数据表明，掺入Nd 31会导致PSS发射（325-800 nm）发生蓝移，从而减少相邻PSS侧基（芳环）之间的相互作用。还观察到PSS基质与Nd3 +之间的Nd3 +重吸收和能量转移效应。 Nd-PSS薄膜在1076边缘处（F-4（3/2）-> I-4（11/2））的IR发射呈现恒定效率，与Nd3 +浓度无关。 Judd-Ofelt理论被用来分析辐射特性。激发光谱证明了聚合物基体和Nd3 +之间的能量转移。复数阻抗数据用于探测聚合物基体内电荷传输过程中的弛豫过程。

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