| 导电聚合物纳米线的制备及气敏性能研究 |
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| 引用本文： | 徐建华,杨亚杰,蒋亚东,于军胜.导电聚合物纳米线的制备及气敏性能研究[J].功能材料,2009,40(1). |
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| 作者姓名： | 徐建华 杨亚杰 蒋亚东 于军胜 |
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| 作者单位： | 电子科技大学,电子薄膜与集成器件国家重点实验室,四川,成都,610054
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 首次采用简单的浸润多孔氧化铝(AAO)模板法制备了导电聚合物聚-3,4-乙烯二氧噻吩(PE-DOT)纳米线.导电聚合物溶液浸润AAO模板后,PEDOT吸附于孔道壁并进一步聚合生成导电聚合物纳米线.紫外-可见光-近红外光谱(UV-vis-NIR spec-trum)分析表明生成的纳米线处于掺杂态.采用四探针仪分析了导电聚合物纳米线的导电性能,结果显示纳米线电导率相比普通PEDOT材料有数量级增加,且表现出良好的掺杂/脱掺杂能力.研究了导电聚合物纳米线的气体敏感性能,发现其对挥发性醇类,尤其对甲醇在较低浓度下表现出优异的敏感性,对5×10-6甲醇气体的响应时间约为10～20s,测试可重复性超过20次,达到饱和吸附时的气体浓度明显大于普通PEDOT材料.表明PEDOT纳米线不仅提供了较大表面积供气体分子吸附,而且纳米线中导电通道取向一致,从而体现出较好的气体敏感性能.
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| 关 键 词： | 纳米线 导电聚合物 电导率 气敏特性 |
Preparation and gas sensitivity of conducting polymeric nanowires |
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| XU Jian-hua,YANG Ya-jie,JIANG Ya-dong,YU Jun-sheng.Preparation and gas sensitivity of conducting polymeric nanowires[J].Journal of Functional Materials,2009,40(1). |
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| Authors: | XU Jian-hua YANG Ya-jie JIANG Ya-dong YU Jun-sheng |
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| Abstract: | Conducting polymer nanowires of poly(3,4-ethylene dioxythiophene)(PEDOT) was firstly prepared by an simple wetting anodic aluminium oxide template(AAO) method.The AAO template was wetted by PEDOT polymer solution and the conducting polymer nanowires was formed into the hole of template.The formed PEDOT nanowires was characterized by UV-vis-near IR(UV-vis-NIR) absorption spectrum,and the result showed that the nanowires was in a doped state.The size of obtained nanowires was larger than the size of AAO templ... |
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| Keywords: | nanowires conducting polymer conductivity gas sensitivity |
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