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利用快重离子辐照的单晶白云母片产生潜径迹,蚀刻得到直径在30—180nm纳米孔道.孔道形状依赖于蚀刻时间,蚀刻时间短得到圆柱形孔道,蚀刻时间长得到菱柱形孔道.从而在云母模板孔道中电化学沉积得到不同直径和形状的Cu纳米线.通过紫外可见光谱分析,发现铜纳米线的尺寸和形状影响其光学性质.直径小于60nm的近似为圆柱状Cu纳米线有一个明显的表面等离子体共振峰和一个微弱的次峰.随着直径增加,菱柱状的Cu纳米线主峰有明显的红移,次峰逐渐增强.同时利用扫描电子显微镜、X射线衍射对Cu纳米线的形貌和晶体结构特征进行了表征.
The use of fast heavy ion irradiation of single crystal mica to generate potential track, etching diameter of 30-180nm nanopore channel. The channel shape depends on the etching time, the etching time to get a short cylindrical hole, the etching time to get rhombic channel .Cu nanowires with different diameters and shapes were electrochemically deposited in mica template channels.It was found by UV-Vis spectroscopy that the size and shape of copper nanowires affected their optical properties.Cu nanowires with diameters less than 60 nm There is a significant surface plasmon resonance peak and a weak secondary peak.With the increase of diameter, the main peak of the rhombic Cu nanowires have a significant redshift, sub-peak gradually increased.While using scanning electron microscopy, X-ray diffraction of Cu The morphology and crystal structure of nanowires were characterized.