This paper introduces free-standing, stem-supported silicon dioxide hemispherical shells (μ-wineglasses) that are thermallygrown and have high-quality-factor resonances due to unrestricted support stem diameter and low internal thermoelastic damping. The fabrication process offers a direct path to batch fabrication of hemispherical wineglass microstructures with ultra-thin conformal conductive ...

The oxidation of bimetallic alloy nanoparticles comprising a noble and a nonnoble metal is expected to cause the formation of a single-component surface oxide of the nonnoble metal, surrounding a core enriched with the noble metal. Studying the room temperature oxidation of Au-In nanoparticles, we show that this simple picture does not apply to an important class of bimetallic alloys, in which ...

Core-shell nanostructures have found applications in many fields, including surface enhanced spectroscopy, catalysis and solar cells. Titania-coated noble metal nanoparticles, which combine the surface plasmon resonance properties of the core and the photoactivity of the shell, have great potential for these applications. However, the controllable synthesis of such nanostructures remains a chal...

Solvent annealing at around 300 °C resulted in a significant modification of the structure and magnetic properties core–shell metal oxide nanoparticles as shown by DANES XMCD.

A bottom-up approach to produce a long-range ordered superlattice of monodisperse and isomorphic metal-oxide nanoparticles (NP) supported onto an oxide substrate is demonstrated. The synthetic strategy consists of self-assembling metallic NP on an ultrathin nanopatterned aluminum oxide template followed by a morphology-conserving oxidation process, and is exemplified in the case of Ni, but is g...

Core/shell structured metal halide perovskite nanocrystals (NCs) are emerging as a type of material with remarkable optical and electronic properties. Research into this field has been developing expanding rapidly in recent years, significant advances the studies shell growth mechanism understanding properties these materials. Significant enhancement both stability performance core/shell NCs pa...

A scalable technique for making silica coatings with embedded two-dimensional arrays of iron oxide nanoparticles is presented. The iron oxide nanoparticle arrays were formed by depositing quasi-crystalline ferritin layers, an iron storage protein with an iron oxide mineral core, on solid substrates by a spread-coating technique based on evaporation-induced convective assembly. The layer of prot...