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In article number 2004782, Boris I. Yakobson and co‐workers demonstrate binding of reactive gas atoms (H or F) to the exterior graphene layer, to switch its atoms from sp2 to sp3 hybridization, a diamond state. The created dangling bonds connect to the next layer, and such “chemical domino effect” sweeps through to the opposite surface, forming a film with all coveted traits of diamond. Image credit:...
Nearly 2D diamond, or diamane, is coveted as an ultrathin sp3‐carbon film with unique mechanics and electro‐optics. The very thinness (≈h) makes it possible for the surface chemistry, for example, adsorbed atoms, to shift the bulk phase thermodynamics in favor of diamond, from multilayer graphene. Thermodynamic theory coupled with atomistic first principles computations predicts not only the reduction...
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