Resonant photoluminescence excitation studies of InGaN/GaN single quantum wells

2006 ◽  
Vol 3 (6) ◽  
pp. 2001-2004 ◽  
Author(s):  
D. M. Graham ◽  
P. Dawson ◽  
M. J. Godfrey ◽  
M. J. Kappers ◽  
J. S. Barnard ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Photoluminescence Excitation ◽  
Single Quantum

Photoluminescence Excitation Spectroscopy of Strained Ingaas/GaAs Quantum Wells

1989 ◽  
Vol 160 ◽  
Author(s):  
Emil S. Koteles ◽  
D. Owens ◽  
B. Elman ◽  
P. Melman ◽  
D. Bertolet ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Quantum Wells ◽  
Device Fabrication ◽  
Photoluminescence Excitation ◽  
Single Quantum ◽  
Indium Composition ◽  
Special Sample Preparation ◽  
Lattice Matched ◽  
Processing Steps ◽  
Exciton Transitions

AbstractPhotoluminescence excitation spectroscopy of exciton transitions has been utilized to obtain information about light-holes in strained InGaAs/GaAs single quantum wells. By monitoring their behavior with respect to that of heavy-holes, it was shown possible to ascertain whether or not the quantum wells were pseudomorphic (lattice matched but strained) or relaxed and, if strained, the magnitude of strain present. Thus the indium composition of the single QW layers was deduced. This method is advantageous since it is nondestructive, requires no special sample preparation, is accurate and can readily be extended to monitoring strain in QWs subjected to various processing steps associated with device fabrication.

scholarly journals Valence Band Mixing in GaAs/AlGaAs Quantum Wells Adjacent to Self-Assembled InAlAs Antidots

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Takuya Kawazu
Keyword(s):  
Optical Properties ◽  
Quantum Wells ◽  
Valence Band ◽  
Energy Barrier ◽  
Heavy Hole ◽  
Electronic States ◽  
Light Hole ◽  
Photoluminescence Excitation ◽  
Band Mixing ◽  
Valence Band Mixing

Optical properties of GaAs/AlGaAs quantum wells (QWs) in the vicinity of InAlAs quantum dots (QDs) were studied and compared with a theoretical model to clarify how the QD strain affects the electronic states in the nearby QW. In0.4Al0.6As QDs are embedded at the top of the QWs; the QD layer acts as a source of strain as well as an energy barrier. Photoluminescence excitation (PLE) measurements showed that the QD formation leads to the increase in the ratio Ie-lh/Ie-hh of the PLE intensities for the light hole (lh) and the heavy hole (hh), indicating the presence of the valence band mixing. We also theoretically calculated the hh-lh mixing in the QW due to the nearby QD strain and evaluated the PLE ratio Ie-lh/Ie-hh.

scholarly journals Optical properties of c-Plane InGaN/GaN single quantum wells as a function of total electric field strength

2019 ◽  
Vol 58 (SC) ◽  
pp. SCCB09 ◽  
Author(s):  
George M. Christian ◽  
Stefan Schulz ◽  
Simon Hammersley ◽  
Menno J. Kappers ◽  
Martin Frentrup ◽  
...  
Keyword(s):  
Optical Properties ◽  
Field Strength ◽  
Electric Field ◽  
Quantum Wells ◽  
Electric Field Strength ◽  
Single Quantum ◽  
Total Electric Field

High-temperature photoluminescence and photoluminescence excitation spectroscopy of Al0.60Ga0.40N/Al0.70Ga0.30N multiple quantum wells

2017 ◽  
Vol 10 (2) ◽  
pp. 021002 ◽  
Author(s):  
Hideaki Murotani ◽  
Katsuto Nakamura ◽  
Tomonori Fukuno ◽  
Hideto Miyake ◽  
Kazumasa Hiramatsu ◽  
...  
Keyword(s):  
High Temperature ◽  
Quantum Wells ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Photoluminescence Excitation

Interband transitions inGaN0.02As0.98−xSbx∕GaAs(0

2006 ◽  
Vol 73 (24) ◽  
Author(s):  
R. Kudrawiec ◽  
M. Gladysiewicz ◽  
J. Misiewicz ◽  
H. B. Yuen ◽  
S. R. Bank ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Interband Transitions ◽  
Single Quantum ◽  
Electroreflectance Spectroscopy
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