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The Effect of Dose of Nitrogen-Ion Implantation on the Concentration of Point Defects Introduced into GaAs Layers

Journal Article · · Technical Physics Letters
Secondary-ion mass spectrometry and Rutherford proton backscattering have been used to measure the concentration profiles of nitrogen atoms and examine the defect structure of epitaxial GaAs layers implanted with 250-keV N{sup +} ions at doses of 5 × 10{sup 14}–5 × 10{sup 16} cm{sup –2}. It was found that no amorphization of the layers being implanted occurs at doses exceeding the calculated amorphization threshold, a concentration of point defects that is formed is substantially lower than the calculated value, and a characteristic specific feature of the defect concentration profiles is the high defect concentration in the surface layer.
OSTI ID:
22786371
Journal Information:
Technical Physics Letters, Journal Name: Technical Physics Letters Journal Issue: 7 Vol. 44; ISSN 1063-7850
Country of Publication:
United States
Language:
English