The invention relates to a method for preparing a high crystal grain oriented Zinc Oxide nanometer fiber, which belongs to the technical field of the preparation process of inorganic oxide nano fibers. The main feature of this method is that the N (100) is used as the receiving substrate of the electrospinning to prepare the high grain oriented Zinc Oxide nanofibers. First, the polymer / silicon receiving electrospun zinc acetate composite nano fiber film, then coated with a thin film of silicon heat treatment with polymer decomposition, nucleation, crystallization, Zinc Oxide gradually grew up, because of a single-crystal silicon substrate lattice induced by Zinc Oxide preferred growth, Zinc Oxide formed nanofibers with high grain orientation. The invention provides a method for preparing a high grain oriented Zinc Oxide nanometer fiber by electrospinning method.
【技术实现步骤摘要】
【技术保护点】
一种高晶粒取向氧化锌纳米纤维的制备方法,其特征在于其包括以下步骤:a.?将N(100)单晶硅片依次在丙酮,乙醇和蒸馏水中超声脱脂20分钟,然后在?70%的?HF?溶液中刻蚀?2min,用蒸馏水再次漂洗,放于真空干燥箱备用;b.?将聚乙烯醇加入到盛有蒸馏水的容器中,加热至完全熔化,使其溶液浓度达9~10wt%;然后将一定量的醋酸锌与其混合,聚乙烯醇与醋酸锌的重量比为(1.5~2.25):1;然后电磁搅拌至形成透明均一的静电纺丝液;c.?将配好的静电纺丝液注入到静电纺丝装置中,并将处理好的单晶硅N(100)放置在接收装置处,在电压为15~20KV,接收距离为15~20cm,进行静电纺丝,单晶硅上会接收到一层聚乙烯醇/醋酸锌复合纳米纤维;d.?最后将制备的覆有聚乙烯醇/醋酸锌复合纳米纤维的单晶硅样品放入高温电阻炉中,以4℃/min的升温速率,升温至600℃保温2小时,随炉冷却至室温,最终获得高晶粒取向的氧化锌纳米纤维。
【技术特征摘要】
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