Grain growth: The key to understand solid-state dewetting of silver thin films

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• 作者：P. Jacquet^a ; ^b ; ^c ; ; R. Podor^d ; J. Ravaux^d ; J. Teisseire^a ; I. Gozhyk^a ; J. Jupille^b ; ^c ; R. Lazzari^b ; ^c
• 关键词：Solid-state dewetting ; Grain growth ; Surface diffusion ; Scanning electron microscopy ; Thin films
• 刊名：Scripta Materialia
• 出版年：2016
• 出版时间：1 April 2016
• 年：2016
• 卷：115
• 期：Complete
• 页码：128-132
• 全文大小：1124 K

文摘

The dynamics of solid-state dewetting of polycrystalline silver thin films in oxygen atmosphere was investigated with in situ and real-time environmental Scanning Electron Microscopy at high temperature combined with Atomic Force Microscopy. Three steps were identified during dewetting: induction, hole propagation without specific rim and sintering. Moreover, it was observed that a very selective grain growth, promoted by surface diffusion, plays a key role all along the process.