Thin-suspended 2D materials: facile, versatile, and deterministic transfer assembly

Abstract We report a deterministic 2D material (2DM) transfer method to assemble any-stacking-order heterostructures incorporating suspended ultra-thin 2DMs, such as single-layer graphene (SLG) and bilayer (BLG). The procedure relies on single-step preparation nitrocellulose micro-stamp, which combines both outstanding adhesion softness. It permits the dry pick-up of naked crystals (graphene, MoS 2 , hBN) directly from SiO substrate, precisely them substrates or trenches. Optical Raman data show that no significant defect is introduced upon transfer, even in SLG BLG. areas transferred range up ?1000 µ m substrate. High-yield 2DMs does not require critical point drying for 15 suspension heights down 160 nm. To demonstrate method’s capabilities, we assembled on-substrate optical cavities tuning BLG’s scattering intensity by factors 19 4, respectively. This resilient rapid 2DM will accelerate fabrication many permit versatile research twistronics, straintronics, nano-opto-electro-mechanical systems.