Complex dewetting scenarios of ultrathin silicon films for large-scale nanoarchitectures - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Science Advances Année : 2017

Complex dewetting scenarios of ultrathin silicon films for large-scale nanoarchitectures

Résumé

Dewetting is a ubiquitous phenomenon in nature; many different thin films of organic and inorganic substances (such as liquids, polymers, metals, and semiconductors) share this shape instability driven by surface tension and mass transport. Via templated solid-state dewetting, we frame complex nanoarchitectures of monocrystalline silicon on insulator with unprecedented precision and reproducibility over large scales. Phase-field simulations reveal the dominant role of surface diffusion as a driving force for dewetting and provide a predictive tool to further engineer this hybrid top-down/bottom-up self-assembly method. Our results demonstrate that patches of thin monocrystalline films of metals and semiconductors share the same dewetting dynamics. We also prove the potential of our method by fabricating nanotransfer molding of metal oxide xerogels on silicon and glass substrates. This method allows the novel possibility of transferring these Si-based patterns on different materials, which do not usually undergo dewetting, offering great potential also for microfluidic or sensing applications.
Fichier principal
Vignette du fichier
NAFFOUTI SCI ADV 2017 eaao1472.full.pdf (6.61 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01788658 , version 1 (09-05-2018)

Identifiants

  • HAL Id : hal-01788658 , version 1

Citer

Meher Naffouti, Rainer Backofen, Marco Salvalaglio, Thomas Bottein, Mario Lodari, et al.. Complex dewetting scenarios of ultrathin silicon films for large-scale nanoarchitectures. Science Advances , 2017, 3 (11). ⟨hal-01788658⟩
274 Consultations
62 Téléchargements

Partager

Gmail Facebook X LinkedIn More