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Design of free patterns of nanocrystals with ad hoc features via templated dewetting

Abstract : Design of monodisperse ultra-small nanocrystals (NCs) into large scale patterns with ad hoc features is demonstrated. The process makes use of solid state dewetting of a thin film templated through alloy liquid metal ion source focused ion beam (LMIS-FIB) nanopatterning. The solid state dewetting initiated at the edges of the patterns controllably creates the ordering of NCs with ad hoc placement and periodicity. The NC size is tuned by varying the nominal thickness of the film while their position results from the association of film retraction from the edges of the lay out and Rayleigh-like instability. The use of ultra-high resolution LMIS-FIB enables to produce monocrystalline NCs with size, periodicity, and placement tunable as well. It provides routes for the free design of nanostructures for generic applications in nanoelectronics.
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Mansour Aouassa, Isabelle Berbezier, Luc Favre, A. Ronda, M. Bollani, et al.. Design of free patterns of nanocrystals with ad hoc features via templated dewetting. Applied Physics Letters, American Institute of Physics, 2012, 101 (1), pp.013117--013117--4. ⟨10.1063/1.4730620⟩. ⟨hal-01811416⟩



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