Marrying two layers of graphene is an easy route to the blissful formation of nanoscale diamond, but sometimes thicker is better.
While it may only take a bit of heat to turn a treated bilayer of the ultrathin material into a cubic lattice of diamane, a bit of pressure in just the right place can convert few-layer graphene as well.
The otherwise chemically driven process is theoretically possible according to scientists at Rice University, who published their most recent thoughts on making high-quality diamane—the 2-D form of diamond—in the journal Small.
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