Influence of growth conditions in the case of molecular-beam epitaxy on photoluminescence spectra of GaAs/InAs/GaAs heterostructures with quantum dots near their initiation threshold

2000 ◽  
Vol 45 (10) ◽  
pp. 512-514 ◽  
Author(s):  
V. G. Mokerov ◽  
Yu. V. Fedorov ◽  
A. V. Guk ◽  
Yu. V. Khabarov ◽  
Kh. S. Pak ◽  
...  
2011 ◽  
Vol 2011 ◽  
pp. 1-5
Author(s):  
Faouzi Saidi ◽  
Mouna Bennour ◽  
Lotfi Bouzaïene ◽  
Larbi Sfaxi ◽  
Hassen Maaref

We have investigated the optical properties of InAs/GaAs (113)A quantum dots grown by molecular beam epitaxy (MBE) capped by (In,Ga)As. Reflection high-energy electron diffraction (RHEED) is used to investigate the formation process of InAs quantum dots (QDs). A broadening of the PL emission due to size distribution of the dots, when InAs dots are capped by GaAs, was observed. A separation between large and small quantum dots, when they are encapsulated by InGaAs, was shown due to hydrostatic and biaxial strain action on large and small dots grown under specifically growth conditions. The PL polarization measurements have shown that the small dots require an elongated form, but the large dots present a quasi-isotropic behavior.


1989 ◽  
Vol 39 (5) ◽  
pp. 3138-3144 ◽  
Author(s):  
Katsuhiro Akimoto ◽  
Takao Miyajima ◽  
Yoshifumi Mori

2004 ◽  
Vol 269 (2-4) ◽  
pp. 181-186 ◽  
Author(s):  
G.X. Shi ◽  
P. Jin ◽  
B. Xu ◽  
C.M. Li ◽  
C.X. Cui ◽  
...  

1986 ◽  
Vol 59 (3) ◽  
pp. 888-891 ◽  
Author(s):  
Kazuhiro Kudo ◽  
Yunosuke Makita ◽  
Ichiro Takayasu ◽  
Toshio Nomura ◽  
Toshihiko Kobayashi ◽  
...  

2001 ◽  
Vol 89 (7) ◽  
pp. 4186-4188 ◽  
Author(s):  
Y. F. Li ◽  
J. Z. Wang ◽  
X. L. Ye ◽  
B. Xu ◽  
F. Q. Liu ◽  
...  

1999 ◽  
Vol 38 (Part 1, No. 4B) ◽  
pp. 2524-2528 ◽  
Author(s):  
Shinji Kuroda ◽  
Yoshikazu Terai ◽  
Kôki Takita ◽  
Tsuyoshi Okuno ◽  
Yasuaki Masumoto

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