sp2 bonded carbon allotropes, graphene, single-walled carbon nanotubes,
graphite and fullerenes, can be readily doped (charge carriers added).
This doping is ambipolar and can be finely tuned in graphene via
electrostatic gating. However, much higher doping can be achieved by
covering the surface with dopants such as alkali metals.
I will give recent examples from my research to discuss
1. [solids]
investigations into crystals of heavily doped graphitic materials, which
can yield electronic ground states such as superconductivity
2.
[liquids] how chemically doping graphitic materials permits their
thermodynamically driven dissolution in polar solvents, which could be
crucial for their scalable manipulation into applications.
