Abstract
The growth of InGaAs/GaAs/AlGaAs laser structures by MOCVD at low pressures on Si(001) substrates with a Ge epitaxial metamorphic buffer layer of various thicknesses is studied. The results of the influence of the growth temperature and incorporation of additional AlAs layers at the boundary with the Ge/Si(001) substrate on the crystalline and optical quality of the formed III–V structures are presented. It is shown that the incorporation of the AlAs/GaAs/AlAs lattice at the initial growth stages of III–V heterostructures on Ge buffer layers grown on exact Si(001) substrates makes it possible to considerably decrease the density of threading defects and, consequently, form effectively emitting laser structures. The possibility of growing strained InGaAs quantum wells on Si(001) substrates allowing stimulated radiation in a wavelength region longer than 1100 nm is shown.
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Original Russian Text © N.V. Baidus, V.Ya. Aleshkin, A.A. Dubinov, K.E. Kudryavtsev, S.M. Nekorkin, A.V. Novikov, D.A. Pavlov, A.V. Rykov, A.A. Sushkov, M.V. Shaleev, P.A. Yunin, D.V. Yurasov, A.N. Yablonskiy, Z.F. Krasilnik, 2017, published in Fizika i Tekhnika Poluprovodnikov, 2017, Vol. 51, No. 11, pp. 1579–1582.
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Baidus, N.V., Aleshkin, V.Y., Dubinov, A.A. et al. Peculiarities of growing InGaAs/GaAs/AlGaAs laser structures by MOCVD on Ge/Si substrates. Semiconductors 51, 1527–1530 (2017). https://doi.org/10.1134/S1063782617110070
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DOI: https://doi.org/10.1134/S1063782617110070