Researchers from Spain's University of Santiago de Compostela and IBM developed an extremely simple method to make high-quality well-defined nano graphene flakes from perylene, a common organic compound.

The new method uses arynes as molecular glue to paste graphene fragments together. This results in "clover-shaped" graphene flakes that are deposited on thin insulating films. It is possible to create those nano flakes in different sizes and shapes.

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