直流电沉积法制备单晶Ag纳米棒阵列

Preparation of single crystal Ag nanorods arrays by direct electro-deposition

在较低温条件下,采用直流电沉积法在AAO模板中成功制备出了大面积生长均匀的单晶Ag纳米棒阵列。利用扫描电子显微镜(SEM),能谱仪(EDS),透射电子显微镜(TEM),选区电子衍射(SAED)和XRD等分析手段对样品进行形貌表征及成分分析。结果表明,阵列中的Ag纳米棒尺寸均匀,保持着良好的平行度,直径接近200nm,与AAO模板的孔径大小相当,且可以通过控制沉积时间来实现对Ag纳米棒长度的控制。

Large-sealed Ag nanorods arrays have been synthesized in lower temperature by direct electro-deposition in the porous anodie aluminum oxide （AAO） templates. The morphologies, structure of the as-prepared samples have been characterized by scanning electron microscope （SEM）,energy dispersive X-ray spectroscopy （EDS）,transmission electron microscopy （TEM）, selected-area electron diffraetion（SAED）and X-ray diffraction （XRD）. The results showed that all the nanorods of the arrays are nearly parallel and uniform in diameter of about 200nm. Moreover,the length of them can be controlled by changing the deposition time.