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通过模板辅助的电化学沉积原位生长方法,制备了导电聚合物聚吡咯纳米线阵列结构。这种纳米线具有均匀的直径与长度,并且可以控制聚吡咯沉积过程中通过氧化铝模板的总电荷数量,来调控聚吡咯纳米线的沉积长度。更为重要的是,在微观纳米尺度上,我们采用独特的顶端接触的上电极构造方法,对单根聚吡咯纳米线的电学性能进行分析表征。结果表明,单根聚吡咯纳米线展示出半导体的特性,并且在酸和碱不同条件处理下,电化学性质发生改变,展现出酸碱响应活性。
Through the template-assisted electrochemical deposition in-situ growth method, a conductive polymer polypyrrole nanowire array structure was prepared. The nanowires have a uniform diameter and length, and the deposition length of the polypyrrole nanowires can be controlled by controlling the total amount of charge passing through the alumina template during polypyrrole deposition. More importantly, at the microscopic nanoscale, we employed a unique top-contact top-electrode configuration method to characterize the electrical properties of single polypyrrole nanowires. The results showed that the single polypyrrole nanowires exhibited the characteristics of semiconductors, and under the different conditions of acid and alkali treatment, the electrochemical properties changed, showing acid-base response activity.