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Influence of Underlay Thickness on the Period of Nanoscale Wrinkle

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The influence of underlay thickness on the wrinkle period has been explored in this paper. The wrinkle period has been reduced to about 600 nm on an ultrathin Au upper-layer/polystyrene (PS) underlay system. The experimental data show that the wrinkle period is decrease with the underlay thickness. The previous theory can not give an adequate explanation of the relationship between the underlay thickness and the wrinkle period. A new analytical solution containing finite underlay thickness and a stretching energy item is obtained based on Landau's elastic theory. The analytical solution can well explain the relationship between the underlay thickness and the small period, and is consistent with the experimental data.
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Keywords: BILAYER SYSTEM; NANOSCALE WRINKLE; ULTRATHIN FILM; UNDERLAY THICKNESS

Document Type: Research Article

Publication date: 2010-11-01

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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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