The recent synthesis of one-dimensional van der Waals heterostructures, a type of heterostructure made by layering two-dimensional materials that are one atom thick, may lead to new, miniaturized electronics that are currently not possible, according to a team of Penn State and University of Tokyo researchers.
source https://phys.org/news/2021-03-sushi-like-2d-heterostructures-miniaturized-electronics.html