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    Title: 高折射率聚亞醯胺-二氧化鈦混成薄膜的製備
    Other Titles: Preparation of high-refractive-index polyimide-TiO2 hybrid thin films
    Authors: 張朝欽;洪詩雅
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: 二氧化鈦溶膠;溶膠-凝膠;非質子溶劑;聚亞醯胺;高折射率;光學薄膜;TiO2 sol;Sol-gel;Aprotic solvent;Polyimide;High-refractive-index;Optical thin film
    Date: 2013-01-25
    Issue Date: 2013-10-18 14:45:42 (UTC+8)
    Abstract: 本研究在室温下采用溶胶-凝胶法於非质子溶剂(DMAc和DMF)中合成二氧化钛奈米粒子(约5 nm);且合成的二氧化钛溶胶可长期存放(30天)。将可溶性聚亚醯胺与二氧化钛溶胶依适当比例混合後,藉由旋转涂布及多段烘烤(至300 oC)程序制备高折射率聚亚醯胺-二氧化钛混成薄膜。由FE-SEM可观察到混成薄膜相当平坦,且二氧化钛以奈米尺度均匀分布在混成薄膜中,可以避免散射的问题。藉由调控二氧化钛的含量,在633 nm的折射率可由1.63提升至2.16,显示具备应用於抗反射涂料及光波导的潜力。
    In this study, TiO2 sols with very small particle sizes (~5 nm) were synthesized in an aprotic solvent, N,N-dimethylacetamide (DMAc) and N,N- dimethylformamide (DMF), via sol-gel reaction at room temperature. The TiO2 sol showed long-term storage stability (30 days) and can provide operating control for the preparation of high–refractive–index polyimide-TiO2 hybrid thin films. By means of spin coating and multistep baking (up to 300 oC), the hybrid thin films were prepared from the solutions composed of soluble polyimide and TiO2 sol. The FE-SEM images showed a smooth and uniform morphology of the hybrid thin films. TiO2 domains were in the nanometer range, thus avoiding the light scattering. The refractive indices at 633 nm of the prepared hybrid thin films increase from 1.63 to 2.16 with increasing TiO2 content, which suggested the potential application to anti-reflective coatings and optical waveguides.
    Relation: 2013中華民國高分子學會年會、第三十六屆高分子學術研討會暨國科會 101 年度高分子學門成果發表會、奈米科技與生物高分子國際研討會
    Appears in Collections:[化學工程與材料工程學系暨研究所] 會議論文

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