Ultrahigh Al Schottky barrier to p-Si

The possibility of barrier height enhancement of Schottky junction on p-type Si was studied by using a chemical passivation procedure. Schottky barrier heights up to 0.91 eV have been obtained, due probably to the unpinning of the Fermi-level at the Al/Si interface. It is probably the highest barrier height value published so far for a solid-state Schottky junction prepared on p-Si.