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首页> 外文期刊>Protection of Metals and Physical Chemistry of Surfaces >Photoelectric, Nonlinear Optical, and Photorefractive Properties of Polymer Composites Based on Supramolecular Ensembles of Ru(II) and Ga(III) Complexes with Tetra-15 - Crown- 5 -Phthalocyanine
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Photoelectric, Nonlinear Optical, and Photorefractive Properties of Polymer Composites Based on Supramolecular Ensembles of Ru(II) and Ga(III) Complexes with Tetra-15 - Crown- 5 -Phthalocyanine

机译：基于Ru（II）和Ga（III）与Tetra-15-Crown-5-酞菁配合物的超分子复合物的聚合物复合材料的光电，非线性光学和光折变性能

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摘要

Techniques of the production of polymer nanocomposites based on tetrapyrrole compounds with photoelectric, nonlinear optical, and photorefractive properties are considered. Supramolecular ensembles of Ru(II) and Ga(III) complexes with tetra- 15-crown-5-phthalocyanine are found to form upon the deposition of thin films from tetrachloroethane solutions that have undergone several cycles of heating followed by slow cooling. The surface formation of supramolecular ensembles is studied with the use of atomic force microscopy. The assemblage is found to give rise to photoelectric and photorefractive sensitivity in the near-infrared range (measurements were carried out at 1064 and 1550 run). The quantum yield of thermalized electron—hole pairs at 1064 nm in composites of polyvinyl carbazole and assembled Ga(III) complexes is 20 times as high as that in composites based on Ru(II) complexes. The largest two-beam coupling gain coefficient at 1064 nm (F = 120 cm"1 at E_o = 120 V/um) was also observed for the Ga(III)-complex-containing composite. The third-order dielectric molecular susceptibility measured in tetrachloroethane solutions of the complexes weakly depends on the nature of the central atom and its axial neighborhood and falls in a range ofy = 4-5.2 x 10~(-32)esu.
机译：考虑了基于四吡咯化合物的具有光电，非线性光学和光折变性质的聚合物纳米复合材料的生产技术。发现从四氯乙烷溶液中沉积薄膜后，Ru（II）和Ga（III）配合物与四-15冠冕-5-酞菁的超分子团簇形成，所述四氯乙烷溶液经过数次加热然后缓慢冷却。使用原子力显微镜研究了超分子团的表面形成。发现该组合物在近红外范围内引起了光电和光折光敏感性（在1064和1550nm下进行测量）。聚乙烯咔唑和组装好的Ga（III）配合物在1064 nm处的热化电子-空穴对的量子产率是基于Ru（II）配合物的化合物的20倍。还观察到了含Ga（III）配合物的复合材料在1064 nm处的最大两束耦合增益系数（在E_o = 120 V / um时F = 120 cm“ 1）。配合物的四氯乙烷溶液微弱地取决于中心原子的性质及其轴向邻域，并且在y = 4-5.2 x 10〜（-32）esu的范围内。

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