Influence of the Order of Ion Implantation on Luminescent Spectrum of ZnSe Nanocrystals

  • Anna Boichenko V.N. Karazin Kharkiv National University, Kharkov, Ukraine https://orcid.org/0000-0002-2444-2052
  • Sergiy Kononenko V.N. Karazin Kharkiv National University, Kharkiv, Ukraine https://orcid.org/0000-0001-6060-2589
  • Fadei Komarov Institute of Applied Physics Problems, Minsk, Belarus
  • Oganes Kalantaryan V.N. Karazin Kharkiv National University, Kharkiv, Ukraine https://orcid.org/0000-0002-5625-6908
  • Vitaliy Zhurenko V.N. Karazin Kharkiv National University, Kharkiv, Ukraine https://orcid.org/0000-0002-4738-094X
  • Stanislav Avotin Kharkiv National Agrarian University named after V. V. Dokuchaiev «Dokuchaieske-2», Kharkiv region, Ukraine
  • Nikolay Rokhmanov Kharkiv National Agrarian University named after V. V. Dokuchaiev «Dokuchaieske-2», Kharkiv region, Ukraine
DOI: https://doi.org/10.26565/2312-4334-2021-3-21
Keywords: zinc selenide, ion implantation, luminescence spectrum, fitting by Gaussian functions

Abstract

The paper presents the results of mathematical treatment of the luminescent spectra of ZnSe nanocrystals. The samples were formed by the implantation of 150 keV Zn+ and 170 keV Se+ ions in silicon dioxide layer obtained by oxidation of a silicon substrate. We analyzed two sorts of the samples obtained with different implantation sequences: Zn+ were implanted first, and Se+ implanted next (sample A); reverse sequence with Se+ implanted at the beginning (sample B). The spectra obtained for different implantation sequences A and B differed from each other. It was found that besides the intensive evident bands with maxima at 2.3 eV (540 nm) and 2.85 eV (430 nm), which were associated with ZnSe intrinsic luminescent centers, there were two bands with maxima at 1.9 eV (650 nm) and 2.6 eV (480 nm), which were related to intrinsic SiO2 defects. Hereby the effect of the medium (silicon dioxide matrix) on luminescent spectra of SiO2 films with ZnSe nanocrystals formed by ion implantation was demonstrated. Mathematical treatment of the band shape with a maximum of 2.85 eV showed that the parameters such as full width at half maximum, skewness and kurtosis indicated the dependence of size distribution of ZnSe nanoparticles on the implantation sequence of ions. The results are in a good agreement with the data of Transmission Electron Microscopy.

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Published
2021-09-28
Cited
How to Cite
Boichenko, A., Kononenko, S., Komarov, F., Kalantaryan, O., Zhurenko, V., Avotin, S., & Rokhmanov, N. (2021). Influence of the Order of Ion Implantation on Luminescent Spectrum of ZnSe Nanocrystals. East European Journal of Physics, (3), 141-144. https://doi.org/10.26565/2312-4334-2021-3-21
Issue
No. 3 (2021): East European Journal of Physics
Section
Original Papers

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