One nanometer thin carbon nanosheets with tunable conductivity and   stiffness
  We present a new route for the fabrication of ultrathin (~1 nm) carbon films and membranes, whose electrical behavior can be tuned from insulating to conducting. Self-assembled monolayers of biphenyls are cross-linked by electrons, detached from the surfaces and subsequently pyrolized. Above 1000K, the cross-linked aromatic monolayer forms a mechanically stable graphitic phase. The transition is accompanied by a drop of the sheet resistivity from ~10^8 to ~10^2 kOhm/sq and a mechanical stiffening of the nanomembranes from ~10 to ~50 GPa. The technical applicability of the nanosheets is demonstrated by incorporating them into a microscopic pressure sensor 
Andrey Turchanin, Andre Beyer, Christoph Nottbohm, Xianghui Zhang,   Rainer Stosch, Alla Sologubenko, Joachim Mayer, Peter H...
cond-mat.mes-hall cond-mat.mtrl-sci