The Schottky barrier height at the Au/porous silicon interface has bee
n studied with ballistic electron emission microscopy (BEEM). The poro
us silicon thin films were prepared by laser ablation, The barrier hei
ght was found to display considerable variation across the interface.
We suggest that this barrier height variation is a reflection of the l
ocal bonding differences at the Au/porous Si interface. (C) 1998 Elsev
ier Science B.V.