Influence of Low-Energy Atomic Hydrogen on Argon-Implanted Silicon Schottky Barriers

S. Ashok, Ken Giewont

Japanese Journal of Applied Physics · 1985 · 33 citations · 7 references

Concepts

Abstract

Low-energy (0.4 keV), high-dose (∼10 18 cm -2 ) H + implantation into n-type and p-type Si previously implanted with Ar has resulted in unusual modification of the Si surface barrier. The complex interaction of these ions in Si has resulted in Al/p-Si Schottky diodes with an effective barrier height of 0.83 eV, the highest reported value for any metal/p-Si contact. The corresponding complementary influence of atomic hydrogen on n-Si is not seen, suggesting specific interactions between H and the dopant or the formation of a surface layer of hydrogenated amorphous silicon.

References

7