Controllable growth of nanocomposite films with metal nanocrystals sandwiched between dielectric superlattices
Source abstract
Abstract
Nanocomposite films, with Ni nanocrystals (NCs) (5–8 nm) embedded within SrTiO3/BaTiO3 superlattice (period: 30 nm), were prepared by laser molecular beam epitaxy. In situ reflection high-energy electron diffraction was employed to study the role of lattice strain in the self-organization of NCs and the epitaxial growth of SrTiO3/BaTiO3 superlattice. It was found that the strain from large lattice mismatch drove the self-organization of Ni NCs. Also the SrTiO3/BaTiO3 epitaxial growth was achieved on the NC-dotted irregular interface, because the epitaxial growth occurred preferably at sites with low strain. The fine alternation of the two processes would provide a possible route to engineer controllably the nanocomposite microstructure.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Semiconductor materials and devices · Ferroelectric and Piezoelectric Materials · Photonic Crystals and Applications
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References (21)
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