Monday, 08 August 2022

A novel nanostructured geometry to control and suppress unwanted GHz mechanical vibrations in materials

As reported today in an article in ‘Nature Nanotechnology’, a team of researchers led by scientists at the Catalan Institute of Nanoscience and Nanotechnology (ICN2) achieved the suppression of mechanical vibrations in a silicon nanostructured membrane by shaping it into a cloverleaf-like pattern. Unwanted vibrations compromise the performance of materials for micro- and nano-electromechanical systems. These results open the way to applications in nanotechnology, optical communications and quantum computing, among others. The publication was accompanied by a News and Views article highlighting the work.

Tuesday, 02 August 2022

Novel electron-microscopy methodology enables sub-nanometer characterization of the electronic properties of semiconductor nanowires

In a study coordinated by ICREA Prof. Jordi Arbiol and his Advanced Electron Nanoscopy Group at the ICN2, and published in “Nature Communications”, arrays of core-shell nanowires made of two different semiconductors and grown horizontally on a planar surface are thoroughly analised by means of scanning transmission electron microscopy. This atomic-scale study is key to understanding how morphological characteristics affect opto-electronic, plasmonic, and quantum properties and how to control them for application in next-generation devices.