Enhanced Photoluminescence from Long Wavelength InAs Quantum Dots Embedded in a Graded (In,Ga)As Quantum Well

2001 ◽  
Vol 707 ◽  
Author(s):  
L. Chen ◽  
V. G. Stoleru ◽  
D. Pan ◽  
E. Towe
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Quantum Well ◽  
Molecular Beam ◽  
Composition Profile ◽  
Inas Quantum Dots ◽  
Long Wavelength ◽  
Enhanced Photoluminescence ◽  
Self Organized ◽  
Ingaas Quantum Well

ABSTRACTThree sets of self-organized InAs quantum dots (QDs) embedded in an external InGaAs quantum well samples were grown by solid source molecular beam epitaxy (MBE). By modifying Indium composition profile within quantum well (QW) region, it's found the photoluminescence emission from quantum dots can be greatly enhanced when employing a graded quantum well to surround QDs. This quantum dots in a graded quantum well structure also preserves the long wavelength (1.3 μm) spectrum requirement for the future use in optoelectronics devices.

Enhanced Photoluminescence from Long Wavelength InAs Quantum Dots Embedded in a Graded (In,Ga)As Quantum Well

2001 ◽  
Vol 692 ◽  
Author(s):  
L. Chen ◽  
V. G. Stoleru ◽  
D. Pal ◽  
D. Pan ◽  
E. Towe
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Quantum Well ◽  
Molecular Beam ◽  
Composition Profile ◽  
Inas Quantum Dots ◽  
Long Wavelength ◽  
Enhanced Photoluminescence ◽  
Self Organized ◽  
Ingaas Quantum Well

AbstractThree sets of self-organized InAs quantum dots (QDs) embedded in an external InGaAs quantum well samples were grown by solid source molecular beam epitaxy (MBE). By modifying Indium composition profile within quantum well (QW) region, it's found the photoluminescence emission from quantum dots can be greatly enhanced when employing a graded quantum well to surround QDs. This quantum dots in a graded quantum well structure also preserves the long wavelength (1.3 μm) spectrum requirement for the future use in optoelectronics devices.

Formation of Ultra-low Density (≤104cm-2) Self-Organized InAs Quantum Dots on GaAs by a Modified Molecular Beam Epitaxy Method

2008 ◽  
Vol 1 ◽  
pp. 061202 ◽  
Author(s):  
Masato Ohmori ◽  
Takuya Kawazu ◽  
Kousuke Torii ◽  
Takuji Takahashi ◽  
Hiroyuki Sakaki
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Low Density ◽  
Inas Quantum Dots ◽  
Self Organized ◽  
Molecular Beam Epitaxy Method

Improvement of self-organized InAs quantum dots growth by molecular beam epitaxy

2005 ◽  
Vol 276 (1-2) ◽  
pp. 72-76 ◽  
Author(s):  
Z.L. Miao ◽  
S.J. Chua ◽  
Y.H. Chye ◽  
P. Chen ◽  
S. Tripathy
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Inas Quantum Dots ◽  
Self Organized

Selective Formation of Self-Organized InAs Quantum Dots Grown on Patterned GaAs Substrates by Molecular Beam Epitaxy

2006 ◽  
Vol 45 (4B) ◽  
pp. 3556-3559 ◽  
Author(s):  
Akio Ueta ◽  
Kouichi Akahane ◽  
Shin-ichioro Gozu ◽  
Naokatsu Yamamoto ◽  
Naoki Ohtani
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Inas Quantum Dots ◽  
Self Organized ◽  
Gaas Substrates ◽  
Selective Formation

GaAs-based long-wavelength InAs quantum dots on multi-step-graded InGaAs metamorphic buffer grown by molecular beam epitaxy

2011 ◽  
Vol 44 (33) ◽  
pp. 335102 ◽  
Author(s):  
He Ji-Fang ◽  
Wang Hai-Li ◽  
Shang Xiang-Jun ◽  
Li Mi-Feng ◽  
Zhu Yan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Inas Quantum Dots ◽  
Long Wavelength ◽  
Metamorphic Buffer

GaAs-Based Metamorphic Long-Wavelength InAs Quantum Dots Grown by Molecular Beam Epitaxy

2009 ◽  
Vol 26 (6) ◽  
pp. 067801 ◽  
Author(s):  
Wang Peng-Fei ◽  
Xiong Yong-Hua ◽  
Wang Hai-Li ◽  
Huang She-Song ◽  
Ni Hai-Qiao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Inas Quantum Dots ◽  
Long Wavelength

Structural and optical properties of heterostructures with InAs quantum dots in an InGaAsN quantum well grown by molecular-beam epitaxy

2004 ◽  
Vol 38 (3) ◽  
pp. 340-343 ◽  
Author(s):  
I. P. Soshnikov ◽  
N. V. Kryzhanovskaya ◽  
N. N. Ledentsov ◽  
A. Yu. Egorov ◽  
V. V. Mamutin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Molecular Beam Epitaxy ◽  
Quantum Well ◽  
Molecular Beam ◽  
Structural And Optical Properties ◽  
Inas Quantum Dots

Growth of self-organized InAs quantum dots on InP by solid-source molecular beam epitaxy

2000 ◽  
Vol 216 (1-4) ◽  
pp. 57-61 ◽  
Author(s):  
Q.D Zhuang ◽  
S.F Yoon ◽  
H.Q Zheng ◽  
K.H Yuan
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Inas Quantum Dots ◽  
Self Organized
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