Запис Детальніше

Structural Peculiarities of A3B5 Nanocrystals Created in Si by Ion-Beam Synthesis

Electronic Archive of Sumy State University

Переглянути архів Інформація
 
 
Поле Співвідношення
 
Title Structural Peculiarities of A3B5 Nanocrystals Created in Si by Ion-Beam Synthesis
 
Creator Vlasukova, L.
Komarov, F.
Milchanin, O.
Parkhomenko, I.
Zuk, J.
 
Subject Crystalline silicon
InAs nanocrystals
High-fluence implantation
Thermal treatment
 
Description We reported the structure peculiarities of nanocrystals formed in Si by means of high-fluence implantation
at 25 and 500 °С followed by rapid thermal annealing (RTA). The structure of implanted samples
has been investigated by means of transmission electron microscopy (TEM). The crystalline nature of the
precipitates is proved by the Moiré fringe patterns presence in the TEM images. The Moiré fringe distance
(Moiré period) is equal of 1.8 nm for small precipitates. This experimental value coincides with the calculated
one for crystalline InAs. It is noted a Moiré period increasing in the case of large precipitates. We
suppose that this feature is a result of surplus As or In atoms embedded in precipitates. One can see an interesting
effect – “glowng” of nanocrystal/Si interfaces at the dark-field images of implanted and annealed
samples. We ascribe this effect to a presence of misfit dislocation networks at the InAs/Si interfaces generated
as a result of strain relaxation in highly mismatched InAs/Si system.
 
Publisher Sumy State University
 
Date 2014-05-29T11:28:37Z
2014-05-29T11:28:37Z
2012
 
Type Article
 
Identifier Structural Peculiarities of A3B5 Nanocrystals Created in Si by Ion-Beam Synthesis / L. Vlasukova, F. Komarov, O. Milchanin et al. // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No4. - 04RES08
http://essuir.sumdu.edu.ua/handle/123456789/35436
 
Language en