Diffusion and precipitation in amorphous Si

R. G. Elliman*, J. M. Gibson, D. C. Jacobson, J. M. Poate, J. S. Williams

*Corresponding author for this work

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42 Citations (Scopus)

Abstract

The diffusion and precipitation of several ion implanted impurities in amorphous Si have been observed at temperatures of 300-600°C. Typical slow diffusers in crystalline Si, such as As, In, Sb, and Bi, show little or no diffusion at low concentrations. At high concentrations (>1 at. %), they diffuse rapidly with D≳10-15 cm 2/s in the temperature range 500-600°C. Typical fast diffusers in crystalline Si, such as Cu and Au, diffuse in amorphous Si with D>10 -12 cm2/s at 400-600°C. Precipitation has been observed for both the fast and slow diffusers in amorphous Si.

Original languageEnglish
Pages (from-to)478-480
Number of pages3
JournalApplied Physics Letters
Volume46
Issue number5
DOIs
Publication statusPublished - 1985
Externally publishedYes

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