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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Fabrication of efficient nonlinear optical absorber using Zn phthalocyanine-semiconductor quantum dots conjugates
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Fabrication of efficient nonlinear optical absorber using Zn phthalocyanine-semiconductor quantum dots conjugates

机译：使用Zn酞菁 - 半导体量子点缀合物的高效非线性光学吸收器的制备

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摘要

In this paper, we report on the synthesis of Zn(II) phthalocyanine derivatives and their conjugates with core/shell and core/shell/shell semiconductor quantum dots (SQDs). Zn(II) mono amino-carboxyethylphenoxy phthalocyanine (1), Zn(II) mono 3-carboxyphenoxy-tris(pyridin-2-yloxy) phthalocyanine (2) and Zn(II) mono aminophenoxy-tris(benzothiazole) phthalocyanine (3) were synthesized. The photophysical and optical limiting properties of the phthalocyanine (Pc) complexes and their conjugates with SQDs were investigated in dimethyl sulfoxide. The optical limiting behaviour of the Pc complexes and their conjugates were measured by the open aperture Z-scan technique at laser excitation wavelength of 532 nm with 10 ns pulse. The conjugates outperformed the Pc complexes alone with the conjugates of 2-SQDs affording highest nonlinear absorption coefficient (beta(eff)) value of similar to 80 cm/GW and lowest limiting threshold (I-lim) value of similar to 0.27 J.cm(-2) as compared to other samples while complex 1 gave low beta(eff) and high I-lim values of 42.2 cm/GW and 1.39 J.cm(-2), respectively. (C) 2018 Elsevier Ltd. All rights reserved.
机译：在本文中，我们报告了Zn（II）磷酞菁衍生物及其与芯/壳和芯/壳/壳半导体量子点（SQD）的缀合物的合成。 Zn（ii）单氨基 - 羧乙基苯氧基酞菁（1），Zn（II）单磷酰基苯并三（吡啶-2-基氧基）酞菁（2）和Zn（II）单氨基苯氧基 - Tris（苯并噻唑）酞菁（3）被合成了。研究了酞菁（PC）复合物的光物理和光学限制性质及其与SQDS的缀合物在二甲基亚砜中研究。 PC复合物的光学限制行为及其缀合物通过开口孔径Z扫描技术以532nm的激光激发波长为10 ns脉冲测量。缀合物单独使用2-SQD的缀合物的PC复合物，其具有类似于80cm / gw的最高非线性吸收系数（β（exf））值和类似于0.27J.CM的最低限度阈值（I-LIM）值（-2）与其他样品相比，络合物1得到低β（EFF）和42.2cm / gw和1.39J.cm（-2）的高I-in e-ins值。 （c）2018年elestvier有限公司保留所有权利。

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