The stacking of different materials
Numerous designer materials and new devices can be created by stacking together any number of atomically thin layers. The new structures are called van der Waals (vdW) heterostructures. The EU-funded PeSD-NeSL project will focus on the non-equilibrium states and dynamics under laser in vdW, including carrier multiplications, light-induced Moiré engineering, interlayer Moiré exciton and light-induced insulator-metal phase transition. Currently, the underlying microscopic interactions among photon, electron, exciton, phonon and other quasi-particles are not clearly understood. The project will perform advanced numerical experiments. Firstly, it will conduct carrier multiplications in two-dimensional monolayers and vdW heterostructures. It will also conduct light-induced Moiré engineering and Moiré excitons in vdW bilayers. The third part is the photo-induced phase dynamics and non-equilibrium states in transition metal dichalcogenide (TMD) layers.