Stacking-Engineered Ultrafast Charge Separation in Type-I Silicane/Germanane van der Waals Heterostructures
Stacking engineering in van der Waals heterostructures offers a powerful route to modulating band alignment and carrier dynamics. Here, we present a theoretical investigation of SiH/GeH van der Waals heterostructures with different stacking configurations. Distinct stacking-dependent band alignments are identified, w...