Caterina Cocchi

All-Optical Control of Interfacial Polarization in MoS2/WSe2 Heterobilayers

Abstract All-optical tuning of van der Waals (vdW) heterostructures with coherent radiation offers a powerful strategy for manipulating interfacial electronic properties on femtosecond time scales. Using real-time time-dependent density functional theory, we predict a transient o...

Highly Efficient Exciton Modulation in MoSe2/PdSe2 Heterostructures

Abstract We report a pronounced ∼6-fold enhancement of room-temperature A-exciton emission in a type-I MoSe2/PdSe2 van der Waals heterostructure, yielding a photoluminescence quantum yield of 6%, as compared to ∼1% for as-exfoliated monolayer MoSe2. This unusual enhancement is ac...