非水解溶胶—凝胶法制备液态PSQ光波导材料

发布时间：2018-05-09 01:22

  本文选题：聚合物光波导 + 聚硅氧烷　； 参考：《大连理工大学》2010年硕士论文

【摘要】： 与无机光波导材料相比较,聚合物光波导材料具有结构性能易于调控、制备工艺简单、成本低等优点,而且聚合物材料可以与不同基底材料匹配,有利于和其它光电子器件的集成。已成为未来全光网络系统的重要选材之一。但是聚合物材料也有其自身的缺点,比如,光损耗高,耐热性差等。 聚硅氧烷兼具有机聚合物材料的易加工和无机材料的耐高温等多种特性,成为近年来研究的热点。但是目前由于其固化周期长和光学损耗大等缺陷,限制了其应用。为了降低聚硅氧烷材料的本征光吸收损耗,同时为了使其与新型纳米压印技术相匹配,本文采用非水解溶胶-凝胶法制备了可紫外光固化的液态聚硅氧烷光波导材料。详细研究了其合成技术和光学性能,为其进一步应用打下基础。 本文以二苯基硅二醇,苯基三甲氧基硅烷,甲基丙烯酰氧丙基三甲氧基硅烷为反应前体,制备出了含苯基的聚硅氧烷树脂。以二苯基硅二醇,十二氟庚基丙基三甲氧基硅烷,甲基丙烯酰氧丙基三甲氧基硅烷为反应前体,制备出了含氟聚硅氧烷树脂。系统研究了反应时间和催化剂用量等对聚硅氧烷结构和性能的影响,及聚硅氧烷树脂的光学和热力学性能、固化、旋涂加工技术。 结果表明,两种聚硅氧烷树脂均具有较高的折射率,苯基聚硅氧烷树脂折射率达到了1.54,含氟聚硅氧烷树脂的折射率为1.52。两者的双折射均低于0.0005。苯基聚硅氧烷树脂通过延长固化时间使得其1550nm波段的光学损耗降低到0.36dB·cm-1。UV固化和热固化后,苯基聚硅氧烷在空气中的热分解温度在320℃以上,含氟聚硅氧烷的热分解温度在250℃以上,表现出优异的耐热性能。
[Abstract]:Compared with inorganic optical waveguide materials, polymer optical waveguide materials have the advantages of easy structure control, simple preparation process and low cost, and the polymer materials can match different substrate materials. Facilitate the integration with other optoelectronic devices. It has become one of the important material selection of all optical network system in the future. However, polymer materials also have their own shortcomings, such as high light loss, poor heat resistance and so on. Polysiloxane has become a hot research area in recent years because of its many properties such as easy processing of organic polymer materials and high temperature resistance of inorganic materials. However, its application is limited by its long curing period and high optical loss. In order to reduce the intrinsic light absorption loss of polysiloxane materials and to match the new nano-imprint technology, a UV-curable liquid polysiloxane optical waveguide material was prepared by unhydrolyzed sol-gel method. The synthesis technology and optical properties were studied in detail, which laid a foundation for its further application. In this paper, polysiloxane resin containing phenyl was prepared by using diphenyl silyl, phenyl trimethoxy silane and methacryloxy propyl trimethoxy silane as reaction precursors. Fluorinated polysiloxane resin was prepared by using diphenyl silyl diol dodecyl heptyl trimethoxysilane and methacryloxy propyl trimethoxysilane as reaction precursors. The effects of reaction time and amount of catalyst on the structure and properties of polysiloxane, the optical and thermodynamic properties of polysiloxane resin, curing and spin-coating technology were systematically studied. The results show that both polysiloxane resins have high refractive index. The refractive index of phenyl polysiloxane resin and fluorinated polysiloxane resin is 1.54 and 1.52respectively. The birefringence of both is less than 0.0005. By prolonging the curing time, the optical loss in 1550nm band of phenyl polysiloxane resin is reduced to that of 0.36dB cm-1.UV curing and heat curing. The thermal decomposition temperature of phenyl polysiloxane in air is over 320 鈩，

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