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为获得优异性能的纳/微米结构的有机-无机复合功能材料,进而探讨在纳/微米结构的电子器件或其它领域的潜在应用,在纳米线聚苯胺(PANi)悬浮液的存在下,采用水热方法进行了ZnO的生长,并用所制得的ZnO/PANi复合材料构筑了叉指结构的聚合物基柔性化学传感器原型器件。采用透射电镜(TEM)、X射线衍射(XRD)、X射线光电子能谱(XPS)等进行了表征,对原型器件的部分响应特性进行了对比考察。结果表明,所制得的ZnO/PANi复合材料为纳米线结构,ZnO的存在对原型器件的敏感特性有明显的影响,影响到聚苯胺的质子化-去质子化过程。XPS结果显示,ZnO/PANi复合对ZnO中Zn、O元素的结合能有显著的影响。所有这些初步结果表明,ZnO/PANi间可能存在强的相互作用,很可能发生了从PANi到ZnO界面间的电荷转移。
In order to obtain organic / inorganic composite functional materials of nano / micro structure with excellent performance, and then to explore the potential applications in nano / micro structure electronic devices or other fields, water is used in the presence of nanowire polyaniline (PANi) suspension, The growth of ZnO was carried out by thermal method, and the prototype device of polymer-based flexible chemical sensor with interdigitated structure was constructed by ZnO / PANi composites. The characteristics of the prototype devices were investigated by TEM, XRD and XPS. The results show that the prepared ZnO / PANi composites are nanowire structures. The presence of ZnO has a significant effect on the sensitive properties of the prototype devices, which affects the protonation-deprotonation of polyaniline. The results of XPS showed that ZnO / PANi composite had a significant effect on the binding energy of Zn and O in ZnO. All of these preliminary results show that there may be strong interactions between ZnO / PANi and charge transfer from PANi to ZnO interface is likely to occur.