利用重离子径迹云母模板制备Au纳米线

Preparation of Au Nanowire in Heavy Ion-Track Mica Template

摘要: 利用重离子辐照单晶白云母片，经蚀刻后产生菱形的柱状孔道。菱形孔长轴和短轴对角线的长度分别约为50和30 nm。在云母模板的孔道中通过电化学沉积制备Au纳米线。通过紫外-可见光谱分析，观测到Au纳米线有两个表面等离子体共振（SPR)峰，依赖于模板的菱柱形孔道形状。同时利用扫描电子显微镜（SEM)、X射线衍射（XRD)对Au纳米线的形貌和晶体结构特征进行了表征。

Abstract: Nanopores with rhombic shape were obtained by heavy ion irradiation and track etching single-crystal muscovite mica sheet of thickness 25 μm. The rhombic cross sectional shape has a major diameter of around 50 nm and a minor diameter of around 30 nm. The Au nanowires were fabricated by electrodeposition into the mica nanopores. The UV-Vis absorption spectra of Au nanowires show that the Au nanowires exhibite two surface plasma resonance (SPR) peaks due to the rhombic shape. The morphology and crystallinity of the Au nanowires were studied by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses.