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Nanopatterning on Silicon Wafers Using AFM-Based Lithography—for Solar Cells

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In this report, the nanopatterning method based on atomic force microscopy (AFM) with electrical bias to form the oxide patterns on silicon wafer is described. Under constant bias, 30 V, the linear pattern size is proportional to the rising humidity in the working environment. According to our experimental results, the sizes of the most circular nanopatterns are in the range from 50 nm to 70 nm depending on the applied bias and interaction time. In the results of evaluating the generation of oxidative production, the diameters and the number of oxide two dimensional nanopattern array, defaulted to 25 dots in 1 m2, appeared in the AFM images have increasing tendency with the larger bias and the longer dwell time. Moreover, the imaging features of nanopatterns caused by bias 30 V have better performance than those by 10 V, and the dwell time only takes 0.015 s per dot.
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Document Type: Research Article

Publication date: 2009-03-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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