Electrodifusion of Manganese Atoms in Silicon

Autor: Xalmurat M. Iliyev, Zafar B. Khudoynazarov, Bobir O. Isakov, Mirahmat X. Madjitov, Abduvokhid A. Ganiyev
Jazyk: English<br />Russian<br />Ukrainian
Rok vydání: 2024
Předmět:
Zdroj: East European Journal of Physics, Iss 2, Pp 384-387 (2024)
Druh dokumentu: article
ISSN: 2312-4334
2312-4539
DOI: 10.26565/2312-4334-2024-2-48
Popis: The paper describes the research and study of the process of electrically induced diffusion of Mn atoms in silicon directly from a Si surface layer that was preliminarily enriched with Mn. To ensure the so-called electrically induced diffusion process, a constant electric field was applied to the investigated samples. It has been revealed that as a result of the diffusion of Mn impurity atoms into samples placed at the negative pole of the electrical diffusion unit, the proportion of Mn atoms was 75.4% (relative to silicon atoms), while in samples placed at the positive pole this indicator tended to be 2.7% (relative to silicon atoms). Besides that, for the first time, an experimental increase in the electro-active concentration of Mn impurity atoms in silicon (at T = 900°C) was detected under the influence of an external constant-value electric field. In this case, the maximum solubility of impurity atoms of Mn at a temperature of T = 900°C was NMn~2.27·1014 cm-3, while the average concentration of electro-active Mn atoms diffused into silicon under the influence of an external constant electric field reached NMn*~2.62·1014 cm-3.
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