Layer-by-layer composition and structure of silicon subjected to combined gallium and nitrogen ion implantation for the ion synthesis of gallium nitride

Autor: D. E. Nikolitchev, Davud V. Guseinov, D. A. Pavlov, David Tetelbaum, A. I. Belov, A. N. Mikhaylov, A. V. Pirogov, D. S. Korolev, Andrey A. Shemukhin, V. K. Vasiliev, A. V. Nezhdanov, E. V. Okulich, S. I. Surodin
Rok vydání: 2016
Předmět:
Zdroj: Semiconductors. 50:271-275
ISSN: 1090-6479
1063-7826
DOI: 10.1134/s1063782616020135
Popis: The composition and structure of silicon surface layers subjected to combined gallium and nitrogen ion implantation with subsequent annealing have been studied by the X-ray photoelectron spectroscopy, Rutherford backscattering, electron spin resonance, Raman spectroscopy, and transmission electron microscopy techniques. A slight redistribution of the implanted atoms before annealing and their substantial migration towards the surface during annealing depending on the sequence of implantations are observed. It is found that about 2% of atoms of the implanted layer are replaced with gallium bonded to nitrogen; however, it is impossible to detect the gallium-nitride phase. At the same time, gallium-enriched inclusions containing ∼25 at % of gallium are detected as candidates for the further synthesis of gallium-nitride inclusions.
Databáze: OpenAIRE