Maskless Synthesis of van der Waals Heterostructure Arrays Engineered for Light Harvesting on Large Area Templates.

ABSTRACT: Large area stacking of van der Waals heterostructure arrays, based on 2D Transition Metal Dichalcogenide semiconductors (TMDs), is achieved by an original physical deposition process utilizing Ion Beam Sputtering. Silica substrates endowed with periodically faceted nanoridges are fabricated using interference lithography and serve as templates for maskless deposition of TMD at glancing angles. This approach enables the creation of laterally confined few-layer WS₂ nanostripe arrays coated by MoS₂ films. The subwavelength periodicity of the high refractive index WS₂ nanostripes facilitates the excitation of photonic anomalies at the onset of the evanescence condition. As a consequence, light flow is effectively steered and trapped within the 2D-TMDs heterostr

SUBMITTER: Gardella M 

PROVIDER: S-EPMC12001309 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature