Electric-field-assisted phase switching for crystal phase quantum dot fabrication in GaAs nanowires

Researchers at C2N and the National University of Singapore have demonstrated a new way to control the crystal structure of semiconductor nanowires using an electric field, paving the way for the on-demand fabrication of crystal-phase quantum dots. Controlling different crystal phases within nanowires presents both a challenge and an opportunity. While unwanted phase mixing can degrade device quality, deliberately controlling these phases can be used to create new quantum …

The French team of the "UltiMatePV" project, notably including Stéphane Collin and Amaury Delamarre for C2N, Jean-François Guillemoles and Daniel Suchet for the UMR IPVF, in collaboration with the teams of Stefan Glunz (University of Freiburg and Fraunhofer ISE, Germany) and Christophe Ballif (EPFL/CSEM, Switzerland), has been awarded the prestigious ERC Synergy Grant. The UltiMatePV project aims to develop a more efficient and resource-conscious photovoltaic technology, based on a solar …