Citation:
Guo Deng-Zhu, Hou Shi-Min, Shen Zi-Yong, Zhang Geng-Min, Zhao Xing-Yu, Liu Wei-Min, Wu Jin-Lei, Xue Zeng-Quan. AFM Study of Quasiordered Stripelike Nanostructures on Surfaces of Aluminum[J]. Acta Physico-Chimica Sinica,
;2001, 17(11): 961-965.
doi:
10.3866/PKU.WHXB20011101
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Quasiordered, stripelike, nanometerscale structures were spontaneously created on surfaces of highpurity(99.999%) aluminum by electropolishing. Observed under atomic force microscopy(AFM), the average width of single stripe and the distance between two neighboring stripes are about 40~50 nm,respectively, and the average height of the stripes is 1.5~5.0 nm. The highly ordered stripelike nanostructures can be obtained only within a narrow range of processing parameters. The stripe deficiencies, such as stripecross and stripeconvergence, within parallel stripes, can be seen on surface defects, which do not fundamentally affect the orientation of the stripes. The stripe structures are stable in atmosphere at room temperature. When samples with stripe structures were anodized to form porous alumina, the stripe structures vanished. A physical scenario was proposed to explain the growth mechanisms of the quasiordered stripelike structures.
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