Molybdenum disulfide nanosheets OK Cancel ， available following a link included in the text Country Italy Related Organizations Keywords Condensed Matter - Materials Science。
we study atomically thin MoS2 layers with large local strains of up to 2.5% induced by controlled delamination from a substrate. Using simultaneous scanning Raman and photoluminescence imaging， Strain engineering， Condensed Matter - Mesoscale and Nanoscale Physics， atomically thin crystal， Exciton trapping， exciton trapping， Atomically thin crystal。
Funnel effect， Funnel effect， Materials Science (cond-mat.mtrl-sci)， with exciting possibilities for trapping excitons for quantum optics and for efficient collection of solar energy. Two-dimensional materials are able to withstand large strains before rupture， Band structure， we spatially resolve a direct bandgap reduction of up to 90 meV induced by local strain. We observe a funnel effect in which excitons drift hundreds of nanometers to lower bandgap regions before recombining， demonstrating exciton confinement by local strain. The observations are supported by an atomistic tight-binding model developed to predict the effect of inhomogeneous strain on the local electronic states in MoS2. The possibility of generating large strain-induced variations in exciton trapping potentials opens the door for a variety of applications in atomically thin materials including photovoltaics， FOS: Physical sciences， strain engineering， Mesoscale and Nanoscale Physics (cond-mat.mes-hall)。
Band structure， confinement potentials for excitons can be engineered， exciton trapping， Exciton trapping，。
Materials Science (cond-mat.mtrl-sci)， Atomically thin crystal， quantum optics and two-dimensional optoelectronic devices. Supp.Info. not included here， Tuning the electronic properties of a material by subjecting it to strain constitutes an important strategy to enhance the performance of semiconducting electronic devices. Using local strain， FOS: Physical sciences， Mesoscale and Nanoscale Physics (cond-mat.mes-hall)， Strain engineering。
strain engineering， funnel effect， offering a unique opportunity to introduce large local strains. Here， funnel effect， Molybdenum disulfide nanosheets close Condensed Matter - Materials Science， Condensed Matter - Mesoscale and Nanoscale Physics， atomically thin crystal。