Nanowerk December 4, 2020
Twistronics, tuning of twist angle controls the topology and electron interactions in 2D materials, is a rising research topic in physics in recent years. An international team of researchers (UK, China, Japan, Singapore) has developed a technique enabling twisted van der Waals heterostructures with dynamically tunable optical, mechanical, and electronic properties. Using this technique, they fabricated heterostructures where graphene is perfectly aligned with both top and bottom encapsulating layers of hexagonal boron nitride. The technique could be used in autonomous robotic manipulation of two-dimensional crystals to build van der Waals superlattices, which would allow accurate positioning, rotation, and manipulation of 2D materials to fabricate materials with desired twist angles, to fine-tune electronic and quantum properties of van der Waals materials...read more. Open Access TECHNICAL ARTICLEÂ
In situ manipulation of van der Waals heterostructures. Credit: Science Advances 04 Dec 2020: Vol. 6, no. 49, eabd3655