Resum
2D materials provide a rapidly expanding platform for the observation of novel physical phenomena and for the realization of cuttingedge optoelectronic devices. In addition to their peculiar individual characteristics, 2D materials can be stacked into complex van der Waals
heterostructures, greatly expanding their potential. Moreover, thanks to their excellent stretchability, strain can be used as a powerful control
knob to tune or boost many of their properties. Here, we present a novel method to reliably and repeatedly apply a high uniaxial tensile strain
to suspended van der Waals heterostructures. The reported device is engineered starting from a silicon-on-insulator substrate, allowing for
the realization of suspended silicon beams that can amplify the applied strain. The strain module functionality is demonstrated using singleand double-layer graphene layers stacked with a multilayered hexagonal boron nitride flake. The heterostructures can be uniaxially strained,
respectively, up to ∼1.2% and ∼1.8%.
heterostructures, greatly expanding their potential. Moreover, thanks to their excellent stretchability, strain can be used as a powerful control
knob to tune or boost many of their properties. Here, we present a novel method to reliably and repeatedly apply a high uniaxial tensile strain
to suspended van der Waals heterostructures. The reported device is engineered starting from a silicon-on-insulator substrate, allowing for
the realization of suspended silicon beams that can amplify the applied strain. The strain module functionality is demonstrated using singleand double-layer graphene layers stacked with a multilayered hexagonal boron nitride flake. The heterostructures can be uniaxially strained,
respectively, up to ∼1.2% and ∼1.8%.
| Idioma original | Anglès |
|---|---|
| Número d’article | 111123 |
| Nombre de pàgines | 7 |
| Revista | APL Materials |
| Volum | 11 |
| Número | 11 |
| DOIs | |
| Estat de la publicació | Publicada - 1 de nov. 2023 |