DOI: 10.1063/1.1650873. Photoluminescence and Raman scattering in three-dimensional Si/Si1−xGex nanostructures

Photoluminescence and Raman scattering in three-dimensional Si/Si1−xGex nanostructures

10.1063/1.1650873

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We report detailed Raman and photoluminescence (PL) measurements in Si/Si1−xGex nanostructures grown by molecular-beam epitaxy under conditions of near Stranski–Krastanov (S-K) growth mode. In a series of samples with x controllably increased from 0.098 to 0.53, we observe that an increase in Raman signal related to Ge–Ge vibrations clearly correlates with (i) a redshift in the PL peak position, (ii) an increase in the activation energy of PL thermal quenching, and (iii) an increase in the PL quantum efficiency. The results indicate that in S-K Si/Si1−xGex nanostructures with x&gt;0.5 Ge atoms form nanometer-sized clusters with a nearly pure Ge core and a SiGe shell.

Bibliography

Kamenev, B. V., Tsybeskov, L., Baribeau, J.-M., & Lockwood, D. J. (2004). Photoluminescence and Raman scattering in three-dimensional Si/Si1âxGex nanostructures. Applied Physics Letters, 84(8), 1293â1295.

Authors 4

B. V. Kamenev (first)
L. Tsybeskov (additional)
J.-M. Baribeau (additional)
D. J. Lockwood (additional)

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Dates

Type	When
Created	21 years, 6 months ago (Feb. 12, 2004, 6:03 p.m.)
Deposited	1 year, 7 months ago (Feb. 3, 2024, 9:28 p.m.)
Indexed	1 year, 2 months ago (June 29, 2024, 9:25 a.m.)
Issued	21 years, 6 months ago (Feb. 23, 2004)
Published	21 years, 6 months ago (Feb. 23, 2004)
Published Print	21 years, 6 months ago (Feb. 23, 2004)

Funders 0

None

BibTeX

@article{Kamenev_2004, title={Photoluminescence and Raman scattering in three-dimensional Si/Si1−xGex nanostructures}, volume={84}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1650873}, DOI={10.1063/1.1650873}, number={8}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Kamenev, B. V. and Tsybeskov, L. and Baribeau, J.-M. and Lockwood, D. J.}, year={2004}, month=feb, pages={1293–1295} }

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