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Title: Photoluminescence of nanocrystalline silicon films formed by pulsed laser-assisted deposition with the introduction of carbon

Abstract

The effect of carbon on the photoluminescent properties of films consisting of quantum-dimensional Si nanocrystals in the SiO{sub x} (x {sup {yields}} 2) matrix is studied. The spectra of time-resolved photoluminescence in the photon-energy range of 1.4-3.2 eV and the infrared-absorption spectra in the wave-number range of 650-1500 cm{sup -1} were measured. It is established that the introduction of carbon in the presence of oxygen in the course of the pulsed laser-assisted deposition of the films brings about the white-blue emission spectrum and also an increase in the intensity and stability of photoluminescence. The effect of carbon on the photoluminescent properties of the films is related to the formation of the SiO{sub 2} barrier phase instead of SiO{sub x} (1 < x < 2), saturation of silicon dangling bonds at the surface of Si nanocrystals with larger sizes, and mechanical strengthening of Si nanocrystals with smaller sizes.

Authors:
; ; ;  [1]
  1. National Academy of Sciences of Ukraine, Lashkarev Institute of Semiconductor Physics (Ukraine)
Publication Date:
OSTI Identifier:
21088561
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductors; Journal Volume: 40; Journal Issue: 4; Other Information: DOI: 10.1134/S1063782606040130; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTRA; CARBON; CRYSTALS; DEPOSITION; EMISSION SPECTRA; EV RANGE 01-10; FILMS; NANOSTRUCTURES; PHOTOLUMINESCENCE; SILICA; SILICON; SILICON OXIDES; STABILITY; SURFACES; TIME RESOLUTION

Citation Formats

Kaganovich, E. B., E-mail: dept_5@isp.kiev.ua, Lisovskii, I. P., Manoilov, E. G., and Zlobjn, S. A.. Photoluminescence of nanocrystalline silicon films formed by pulsed laser-assisted deposition with the introduction of carbon. United States: N. p., 2006. Web. doi:10.1134/S1063782606040130.
Kaganovich, E. B., E-mail: dept_5@isp.kiev.ua, Lisovskii, I. P., Manoilov, E. G., & Zlobjn, S. A.. Photoluminescence of nanocrystalline silicon films formed by pulsed laser-assisted deposition with the introduction of carbon. United States. doi:10.1134/S1063782606040130.
Kaganovich, E. B., E-mail: dept_5@isp.kiev.ua, Lisovskii, I. P., Manoilov, E. G., and Zlobjn, S. A.. Sat . "Photoluminescence of nanocrystalline silicon films formed by pulsed laser-assisted deposition with the introduction of carbon". United States. doi:10.1134/S1063782606040130.
@article{osti_21088561,
title = {Photoluminescence of nanocrystalline silicon films formed by pulsed laser-assisted deposition with the introduction of carbon},
author = {Kaganovich, E. B., E-mail: dept_5@isp.kiev.ua and Lisovskii, I. P. and Manoilov, E. G. and Zlobjn, S. A.},
abstractNote = {The effect of carbon on the photoluminescent properties of films consisting of quantum-dimensional Si nanocrystals in the SiO{sub x} (x {sup {yields}} 2) matrix is studied. The spectra of time-resolved photoluminescence in the photon-energy range of 1.4-3.2 eV and the infrared-absorption spectra in the wave-number range of 650-1500 cm{sup -1} were measured. It is established that the introduction of carbon in the presence of oxygen in the course of the pulsed laser-assisted deposition of the films brings about the white-blue emission spectrum and also an increase in the intensity and stability of photoluminescence. The effect of carbon on the photoluminescent properties of the films is related to the formation of the SiO{sub 2} barrier phase instead of SiO{sub x} (1 < x < 2), saturation of silicon dangling bonds at the surface of Si nanocrystals with larger sizes, and mechanical strengthening of Si nanocrystals with smaller sizes.},
doi = {10.1134/S1063782606040130},
journal = {Semiconductors},
number = 4,
volume = 40,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}