Which mechanism causes increased conductivity when graphene is doped with certain elements?

💡 Explanation

When graphene is doped, the dopant atom's valence electrons contribute to or interact with graphene's π-system causing a change in the electron density and enhancement of overlap between p-orbitals enabling easier flow of the delocalized electrons and facilitating increased conductivity. Therefore overlap enhancement results, rather than altering pair generation, lattice resonance, or nanoparticle inclusions which require other mechanisms.

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