Electric field effect in ultrathin black phosphorus

@inproceedings{Koenig2014ElectricFE,
  title={Electric field effect in ultrathin black phosphorus},
  author={Steven P. Koenig and Rostislav A. Doganov and Hennrik Schmidt and Antonio Helio Castro Neto and Barbaros Oezyilmaz},
  year={2014}
}
Black phosphorus exhibits a layered structure similar to graphene, allowing mechanical exfoliation of ultrathin single crystals. Here, we demonstrate few-layer black phosphorus field effect devices on Si/SiO2 and measure charge carrier mobility in a four-probe configuration as well as drain current modulation in a two-point configuration. We find room-temperature mobilities of up to 300 cm2/Vs and drain current modulation of over 103. At low temperatures, the on-off ratio exceeds 105, and the… CONTINUE READING
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