【作者】 陈艳峰； 刘杰； 姚会军； 莫丹； 段敬来； 侯明东； 孙友梅； 薛智浩； 张苓；

【Author】 CHEN Yan-feng1,2,LIU Jie1,YAO Hui-jun1,2,MO Dan1,2,DUAN Jing-lai1,2,HOU Ming-dong1,SUN You-mei1,XUE Zhi-hao1,2,ZHANG Ling1(1.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China)

【机构】 中国科学院近代物理研究所； 中国科学院研究生院；

【摘要】 采用蚀刻的聚碳酸酯(PC)离子径迹膜为模板,结合电化学沉积技术,制备出了直径为100~320 nm、长度从几μm到30μm的聚吡咯纳米线。利用场发射扫描电子显微镜(FESEM)、透射电子显微镜(TEM)对纳米线的形貌进行了表征。结果表明,所制备出的聚吡咯纳米线均呈圆柱形,且表面光滑、粗细一致。聚吡咯纳米线的紫外-可见(UV-Vis)光谱分析表明,随着聚吡咯纳米线直径增加,聚吡咯纳米线吸收峰展宽,且峰位向长波方向移动。更多还原

【Abstract】 Polypyrrole(PPy) nanowires were prepared by electrochemical polymerization in etched ion-track polycarbonate(PC) membranes.The diameters of nanowires are between 100 and 320 nm,and the maximum length is up to 30 μm.The nanowires were characterized using field emission scanning electron microscopy(FESEM),transmission electron microscopy(TEM) and ultraviolet-visible(UV-Vis) spectrophotometer.The results show that as-prepared PPy nanowire is regular cylinder with smooth surface and homogeneous diameter.It’s also interesting to find that there is a thin layer of ordered polymer chains at nanowire’s outer surface and that the extent of this chain order decreases toward the center of the nanostructure.The UV-Vis absorption spectra of PPy nanowires embedded in PC membranes show that,with increasing diameters of nanowires,the absorption peak related to PPy nanowires shifts to longer wavelength.更多还原