纳米颗粒改性PMMA光波导薄膜的研究  

Study of Nano-modification PMMA Optical Waveguide Thin-films

作　　者：肖磊[1] 周建华[1] 王静[2] 王劲文[1] 

机构地区：[1]厦门大学电子工程系,福建厦门361005 [2]厦门大学材料科学与工程系,福建厦门361005

出　　处：《光电子技术与信息》2005年第1期19-22,共4页Optoelectronic Technology & Information

基　　金：福建省青年科技人才创新项目资金资助(2001J024)

摘　　要：主要研究纳米颗粒改性甲基丙烯酸甲酯预聚物(PMMA)的工艺,以及光波导薄膜的制备技术和性能。具体采用机械混合方式进行纳米颗粒掺杂和旋涂技术,旨在提高PMMA光波导层的热稳定性和折射率,并优化实验工艺条件使光波导薄膜达到透明、均匀、致密及无气孔的要求,从而降低其光传输损耗。实验在玻璃和硅基片上制备了纳米改性的PMMA光波导薄膜,并利用各种先进的测试手段对其进行了性能测量和表征分析,结果表明:纳米SiO2颗粒能够大幅度地提高PMMA光波导层的热稳定性和玻璃化转变温度Tg,而纳米TiO2颗粒使其折射率也有显著的提高。In this paper, the modification process of PMMA with nano-particles and the preparation of PMMA optical waveguide thin-films were studied. By taking the film spinning technology and the mechanic-mixing modification process with nano-particals, this work aimed at improving the thermal stability and the refractive index of PMMA and making its optical waveguide thin-films with well-distributed compact and less-blister. The configuration and properties of PMMA thin -films were observed and analyzed by different advanced technologies. The results show that nano-silicon dioxide can improve its thermal stability as well as Tg greatly, and nano titanium dioxide can increase the refractive index of PMMA.

关 键 词：聚甲基丙烯酸甲脂 光波导薄膜 纳米改性 

分 类 号：TN252[电子电信—物理电子学] O635.1[理学—高分子化学]