A piece of paper folded over several times is able to carry more weight than a flat sheet of paper of the same length. Similarly, folding can also enhance the mechanical properties of graphene. Furthermore, the concepts of graphene origami and kirigami have inspired the design of quasi-three-dimensional graphene structures, which possess intriguing mechanical, electronic, and optical properties.
In Nano Letters ("Spontaneous Folding Growth of Graphene on h-BN"), researchers now report the use of a simple chemical vapor deposition (CVD) method to demonstrate that high-quality edge-folded bilayer graphene can be spontaneously grown on a h-BN substrate.

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