Miroslav Kolíbal je spoluautorem nového článku publikovaného v prestižním Nature Materials. Publikace se zabývá jedním z těžišť současného výzkumu v oblasti 2D materiálů – Twisted-layer-graphene, který je zajímavý zejména jako laditelný substrát pro epitaxní růst nebo materiál s modulovatelnými elektronickými parametry
The properties of two-dimensional (2D) van der Waals materials can be tuned through nanostructuring or controlled layer stacking, where interlayer hybridization induces exotic electronic states and transport phenomena. Here we describe a viable approach and underlying mechanism for the assisted self-assembly of twisted layer graphene. The process, which can be implemented in standard chemical vapour deposition growth, is best described by analogy to origami and kirigami with paper. It involves the controlled induction of wrinkle formation in single-layer graphene with subsequent wrinkle folding, tearing and re-growth. Inherent to the process is the formation of intertwined graphene spirals and conversion of the chiral angle of 1D wrinkles into a 2D twist angle of a 3D superlattice. The approach can be extended to other foldable 2D materials and facilitates the production of miniaturized electronic …
