Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth
N. N. LEDENTSOV
1
,
V.A. Shchukin
1
,
M. GRUNDMANN
1
,
Marius Grundmann
1
,
N. Kirstaedter
1
,
J Bohrer
1
,
J. Böhrer
1
,
O. Schmidt
1
,
Oliver G Schmidt
1
,
D. BIMBERG
1
,
V. M. Ustinov
2
,
A. Yu, EGOROV
2
,
A. E. ZHUKOV
2
,
A. Zhukov
2
,
P. S. KOP'EV
2
,
S. V. ZAITSEV
2
,
N.Yu. Gordeev
2
,
Zh. I. Alferov
2
,
A I Borovkov
3
,
Alexey Borovkov
3
,
A. O. Kosogov
4
,
S.S. Ruvimov
4
,
P. Werner
4
,
U Gosele
4
,
U. Gösele
4
,
J. Heydenreich
4
Publication type: Journal Article
Publication date: 1996-09-15
scimago Q1
wos Q2
SJR: 1.303
CiteScore: 6.2
Impact factor: 3.7
ISSN: 24699950, 24699969, 10980121, 1550235X
PubMed ID:
9984553
Abstract
Alternate short-period GaAs-InAs deposition following InAs pyramid formation on a GaAs (100) surface leads to the creation of vertically split pyramids. This splitting is driven by the energetics of the Stranski-Krastanow growth mode. The strain energy is reduced due to the successive transfer of InAs from the buried part of the pyramid to the uncovered part. The resulting arrangement represents a laterally ordered array of nanoscale structures inserted in a GaAs matrix, where each structure is composed of several vertically merging InAs parts. Results of optical studies demonstrate the expected electronic coupling in vertical direction. Coupling is found to decrease the radiative lifetime and to result in low-energy shifts of the corresponding peaks in luminescence and absorption spectra. Vertically coupled quantum dots exhibit injection lasing at very low current densities. \textcopyright{} 1996 The American Physical Society.
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LEDENTSOV N. N. et al. Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth // Physical Review B. 1996. Vol. 54. No. 12. pp. 8743-8750.
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LEDENTSOV N. N., Shchukin V., GRUNDMANN M., Grundmann M., Kirstaedter N., Bohrer J., Böhrer J., Schmidt O., Schmidt O. G., BIMBERG D., Ustinov V. M., EGOROV A. Y., ZHUKOV A. E., Zhukov A., KOP'EV P. S., ZAITSEV S. V., Gordeev N., Alferov Z. I., Borovkov A. I., Borovkov A., Kosogov A. O., Ruvimov S., Werner P., Gosele U., Gösele U., Heydenreich J. Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth // Physical Review B. 1996. Vol. 54. No. 12. pp. 8743-8750.
Cite this
RIS
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TY - JOUR
DO - 10.1103/physrevb.54.8743
UR - https://doi.org/10.1103/physrevb.54.8743
TI - Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth
T2 - Physical Review B
AU - LEDENTSOV, N. N.
AU - Shchukin, V.A.
AU - GRUNDMANN, M.
AU - Grundmann, Marius
AU - Kirstaedter, N.
AU - Bohrer, J
AU - Böhrer, J.
AU - Schmidt, O.
AU - Schmidt, Oliver G
AU - BIMBERG, D.
AU - Ustinov, V. M.
AU - EGOROV, A. Yu,
AU - ZHUKOV, A. E.
AU - Zhukov, A.
AU - KOP'EV, P. S.
AU - ZAITSEV, S. V.
AU - Gordeev, N.Yu.
AU - Alferov, Zh. I.
AU - Borovkov, A I
AU - Borovkov, Alexey
AU - Kosogov, A. O.
AU - Ruvimov, S.S.
AU - Werner, P.
AU - Gosele, U
AU - Gösele, U.
AU - Heydenreich, J.
PY - 1996
DA - 1996/09/15
PB - American Physical Society (APS)
SP - 8743-8750
IS - 12
VL - 54
PMID - 9984553
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
Cite this
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@article{1996_LEDENTSOV,
author = {N. N. LEDENTSOV and V.A. Shchukin and M. GRUNDMANN and Marius Grundmann and N. Kirstaedter and J Bohrer and J. Böhrer and O. Schmidt and Oliver G Schmidt and D. BIMBERG and V. M. Ustinov and A. Yu, EGOROV and A. E. ZHUKOV and A. Zhukov and P. S. KOP'EV and S. V. ZAITSEV and N.Yu. Gordeev and Zh. I. Alferov and A I Borovkov and Alexey Borovkov and A. O. Kosogov and S.S. Ruvimov and P. Werner and U Gosele and U. Gösele and J. Heydenreich},
title = {Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth},
journal = {Physical Review B},
year = {1996},
volume = {54},
publisher = {American Physical Society (APS)},
month = {sep},
url = {https://doi.org/10.1103/physrevb.54.8743},
number = {12},
pages = {8743--8750},
doi = {10.1103/physrevb.54.8743}
}
Cite this
MLA
Copy
LEDENTSOV, N. N., et al. “Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth.” Physical Review B, vol. 54, no. 12, Sep. 1996, pp. 8743-8750. https://doi.org/10.1103/physrevb.54.8743.