Abstract
Novel self-assembled quantum dots (QDs) in the GaSb/AlAs heterosystem were obtained and studied by means of transmission electron microscopy, steady-state and transient photoluminescence. A strong inter-mixing of both III and V group materials results in the fabrication of quaternary alloy QDs in the AlAs matrix. The QDs have atypical energy structure: band alignment of type I with the lowest electronic state at the indirect X minimum of the conduction band.
Similar content being viewed by others
References
D. Bimberg, M. Grundmann, and N. N. Ledentsov, Quantum Dot Heterostructures (Wiley, Chichester, 1999).
A. Marent, M. Geller, A. Schliwa, et al., Appl. Phys. Lett. 91, 242109 (2007).
T. S. Shamirzaev, Semiconductors 45, 96 (2011).
T. S. Shamirzaev, A. V. Nenashev, and K. S. Zhuravlev, Appl. Phys. Lett. 92, 213101 (2008).
M. Paillard, X. Marie, P. Renucci, et al., Phys. Rev. Lett. 86, 1634 (2001).
T. S. Shamirzaev, A. V. Nenashev, A. K. Gutakovskii, et al., Phys. Rev. B 78, 085323 (2008).
F. Hatami, N. N. Ledentsov, M. Grundmann, et al., Appl. Phys. Lett. 67, 656 (1995).
B. R. Bennett, R. Magno, and B. V. Shanabrook, Appl. Phys. Lett. 68, 505 (1996).
R. Timm, H. Eisele, A. Lenz, et al., Appl. Phys. Lett. 85, 5890 (2004).
I. Vurgaftman, J. R. Meyer, and L. R. Ram-Mohan, J. Appl. Phys. 89, 5815 (2001).
N. N. Ledentsov, J. Bohrer, M. Beer, et al., Phys. Rev. B 52, 14058 (1995).
L. S. Braginsky, M. Yu. Zaharov, A. M. Gilinsky, et al., Phys. Rev. B 63, 195305 (2001).
T. S. Shamirzaev, J. Debus, D. S. Abramkin, et al., Phys. Rev. B 84, 155318 (2011).
V. V. Chaldyshev, N. A. Bert, Yu. G. Musikhin, et al., Appl. Phys. Lett. 79, 1294 (2001).
M. Muller, B. Gault, M. Field, et al., Appl. Phys. Lett. 100, 083109 (2012).
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Shamirzaev, T.S., Abramkin, D.S., Gutakovskii, A.K. et al. Novel self-assembled quantum dots in the GaSb/AlAs heterosystem. Jetp Lett. 95, 534–536 (2012). https://doi.org/10.1134/S0021364012100104
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0021364012100104