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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 >Analysis of the absorption and emission spectra of poly(p-phenylene vinylene) films thermally converted at a relatively low temperature
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Analysis of the absorption and emission spectra of poly(p-phenylene vinylene) films thermally converted at a relatively low temperature

机译：较低温度下热转化的聚对亚苯基亚乙烯基薄膜的吸收和发射光谱分析

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摘要

In this work, we studied the absorption and emission spectra of spin-coated poly(p-phenylene vinylene) (PPV)-dodecylbenzenesulfonic counter-ion (DBS) films. The PPV-DBS films were obtained from a soluble precursor polymer thermally converted to PPV over a comparatively short time interval (30 min), and at low temperature (110 degrees C), conditions that yielded films with few structural defects. The line shape of the absorption spectra of the films deposited on glass substrates was analyzed by assuming a Gaussian distribution of segments along the main chain of PPV, and a conjugation degree between 3 and 15 units. For emission studies, only PPV segments with a high conjugation degree or a lower energy gap (HOMO-LUMO transition) contributed to the feature of the spectra. (c) 2006 Elsevier B.V. All rights reserved.
机译：在这项工作中，我们研究了旋涂的聚对苯撑亚乙烯基（PPV）-十二烷基苯磺酸抗衡离子（DBS）薄膜的吸收和发射光谱。 PPV-DBS膜是从可溶的前体聚合物中获得的，该聚合物在较短的时间间隔（30分钟）内在低温（110摄氏度）下热转化为PPV，该条件产生的膜几乎没有结构缺陷。通过假设沿着PPV主链的链段的高斯分布以及共轭度在3到15个单位之间，分析了沉积在玻璃基板上的薄膜的吸收光谱的线形。对于发射研究，只有具有高共轭度或较低能隙（HOMO-LUMO跃迁）的PPV片段有助于光谱特征。 （c）2006 Elsevier B.V.保留所有权利。

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