Molecular dynamics and experimental study of the dewetting behaviors of discontinuous metal films

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL Applied Surface Science Pub Date : 2025-04-06 DOI:10.1016/j.apsusc.2025.163181

Ziyi Cheng , Xiao Wu , Yudong Zhang , Wei Peng , Mingfu Zhu , Ming Zhai , Shijiao Li , Rui Xi , Yifan Hu , Ronghan Wei

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Abstract

Metal nanofilms and their dewetting behaviors are widely investigated due to the applications in science and industry. However, the random rupture in dewetting process makes it difficult to compare between experimental and simulational results, and further clarify the mechanism. Hence, we focus on the discontinuous metal films which can achieve controllable rupture in the dewetting process. Anodic aluminum oxide (AAO) is selected as the substrate to create nanopore-structured silver film to investigate the dewetting mechanisms of discontinuous metal nanofilms under different conditions. The impact of three specific annealing factors on the dewetting process is validated through experiments involving the sputtering of silver nanofilms on AAO surfaces. Furthermore, we propose dimension analysis to make a comparison between experimental and simulated data, which verifies the accuracy of existing molecular dynamics model in the dewetting behavior of discontinous metal nanofilm.

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不连续金属薄膜脱湿行为的分子动力学与实验研究

金属纳米膜及其除湿行为在科学和工业上得到了广泛的应用。然而，脱湿过程中的随机破裂使实验结果与模拟结果难以进行比较，也难以进一步阐明机理。因此，我们重点研究了在脱湿过程中可以实现可控破裂的不连续金属膜。选择阳极氧化铝（AAO）作为衬底制备纳米孔结构银膜，研究不同条件下不连续金属纳米膜的脱湿机理。通过在AAO表面溅射银纳米膜的实验，验证了三种特定退火因素对脱湿过程的影响。此外，我们提出了量纲分析，将实验数据与模拟数据进行比较，验证了现有分子动力学模型在不连续金属纳米膜脱湿行为中的准确性。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.