Abstract
The possibility of increasing the photoluminescence signal of Si1−xGex/Si quantum wells in the visible spectral range due to a change in the conduction band structure and the interaction of many-body states with plasma oscillations of metal nanoparticles is studied. The sample band structure was controlled using a uniaxial strain of ∼10−4. It is found that such an approach allows an increase in the emission intensity of biexcitons in the quantum well (x = 9%) by a factor of 2.4 at a temperature of 5 K. Metal nanoparticles deposited on the sample surface with a protective layer thickness of 20 nm allowed us to increase the luminescence intensity of quantum wells approximately by a factor of 2.7.
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T. Steiner, L. Lenchyshyn, M. Thewalt, et al., SolidState Commun. 89, 429 (1994).
V. S. Bagaev, V. S. Krivobok, S.N. Nikolaev, et al., Phys. Rev. B 82, 1 (2010).
V. S. Bagaev, V. S. Krivobok, S. N. Nikolaev, et al., Pisma Zh. Eksp. Teor. Fiz. 94, 63 (2011) [JETP Lett. 94, 63 (2011)].
V. S. Bagaev, E. T. Davletov, V. S. Krivobok, et al., Zh. Eksp. Teor. Fiz. 148, 1198 (2015) [J. Exp. Theor. Phys. 121, 1052 (2015)].
S. N. Nikolaev, V. S. Krivobok, V. S. Bagaev, et al., Pisma Zh. Eksp. Teor. Fiz. 104, 161 (2016) [JETP Lett. 104, 163 (2016)].
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Original Russian Text © S.N. Nikolaev, V.S. Krivobok, V.S. Bagaev, E.E. Onishchenko, 2017, published in Kratkie Soobshcheniya po Fizike, 2017, Vol. 44, No. 12, pp. 41–46.
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Nikolaev, S.N., Krivobok, V.S., Bagaev, V.S. et al. Visible luminescence enhancement methods in SiGe/Si heterostructures. Bull. Lebedev Phys. Inst. 44, 371–373 (2017). https://doi.org/10.3103/S1068335617120077
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DOI: https://doi.org/10.3103/S1068335617120077