Shallow donor impurities in GaAs-Ga1−xAlxAs quantum-well structures: Role of the dielectric-constant mismatch

1990 ◽  
Vol 41 (8) ◽  
pp. 5096-5103 ◽  
Author(s):  
S. Fraizzoli ◽  
F. Bassani ◽  
R. Buczko
Keyword(s):  
Dielectric Constant ◽  
Quantum Well ◽  
Shallow Donor ◽  
Quantum Well Structures

C-V and DLTS Investigations of GaAs/InGaAs/GaAs Strained Quantum Well Structures

1993 ◽  
Vol 300 ◽  
Author(s):  
S. Subramanian ◽  
B. M. Arora ◽  
A. K. Srivastava ◽  
S. Banerjee ◽  
G. Fernandes
Keyword(s):  
Quantum Well ◽  
Band Offset ◽  
Full Width ◽  
Single Quantum ◽  
Single Quantum Well ◽  
Quantum Well Structures ◽  
Strained Quantum Well ◽  
Good Agreement

ABSTRACTIn this paper we report a modified Kroemer's analysis for the determination of the band offset (ΔEc) of single quantum well (SQW) structures from simple C-V measurements. The experimental carrier profile from an MOVPE grown pseudomorphic GaAs/InGaAs/GaAs strained SQW structure shows a sharp accumulation peak bounded by depletion regions on either side. The full width at half maximum of the accumulation peak is comparable to the width of the quantum well. The value of ΔEC obtained from C-V measurement is in good agreement with the values determined by simulation and photoluminescence measurements. DLTS measurements on our SQW samples do not show any peaks which is contrary to the published reports. We believe that it is necessary to carefully isolate the role of interface states, before assigning a DLTS peak to emission from the quantum well.

scholarly journals Role of doped layers in the dephasing of two-dimensional electrons in quantum-well structures

2001 ◽  
Vol 64 (19) ◽  
Author(s):  
G. M. Minkov ◽  
A. V. Germanenko ◽  
O. E. Rut ◽  
A. A. Sherstobitov ◽  
B. N. Zvonkov ◽  
...  
Keyword(s):  
Quantum Well ◽  
Two Dimensional ◽  
Quantum Well Structures

Role of substrate threading dislocation density in relaxation of highly strained InGaAs/GaAs quantum well structures

1990 ◽  
Vol 56 (14) ◽  
pp. 1350-1352 ◽  
Author(s):  
J. F. Klem ◽  
W. S. Fu ◽  
P. L. Gourley ◽  
E. D. Jones ◽  
T. M. Brennan ◽  
...  
Keyword(s):  
Dislocation Density ◽  
Quantum Well ◽  
Threading Dislocation ◽  
Quantum Well Structures ◽  
Threading Dislocation Density ◽  
Highly Strained

Role of localized excitons in the stimulated emission in ultra-thin CdSe/ZnSe/ZnSSe single quantum-well structures

1998 ◽  
Vol 23 (6) ◽  
pp. 1189-1195 ◽  
Author(s):  
Shigeo Yamaguchi ◽  
Hitoshi Kurusu ◽  
Yoichi Kawakami ◽  
Shizuo Fujita ◽  
Shigeo Fujita
Keyword(s):  
Quantum Well ◽  
Stimulated Emission ◽  
Single Quantum ◽  
Single Quantum Well ◽  
Quantum Well Structures ◽  
Localized Excitons

Binding of Shallow Donor Impurities in Quantum-Well Structures

1985 ◽  
Vol 54 (12) ◽  
pp. 1283-1286 ◽  
Author(s):  
N. C. Jarosik ◽  
B. D. McCombe ◽  
B. V. Shanabrook ◽  
J. Comas ◽  
John Ralston ◽  
...  
Keyword(s):  
Quantum Well ◽  
Shallow Donor ◽  
Quantum Well Structures

Photoluminescence of InGaN/GaN and AlGaN/GaN multiple quantum well structures: role of depletion fields and polarization fields

2003 ◽  
Vol 195 (3) ◽  
pp. 523-527 ◽  
Author(s):  
B. Monemar ◽  
P. P. Paskov ◽  
H. Haratizadeh ◽  
P. O. Holtz ◽  
J. P. Bergman ◽  
...  
Keyword(s):  
Quantum Well ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Quantum Well Structures

scholarly journals Interface phonon modes in the [AlN/GaN]20 and [Al0.35Ga0.65N/Al0.55Ga0.45N]20 2D multi-quantum well structures

2016 ◽  
Vol 18 (43) ◽  
pp. 29864-29870 ◽  
Author(s):  
A. K. Sivadasan ◽  
Chirantan Singha ◽  
A. Bhattacharyya ◽  
Sandip Dhara
Keyword(s):  
Dielectric Constant ◽  
Quantum Well ◽  
Phonon Modes ◽  
Quantum Well Structures ◽  
Barrier Layers ◽  
Multi Quantum Well

Interface phonon (IF) modes of [AlN/GaN]20 and [Al0.35Ga0.65N/Al0.55Ga0.45N]20 multi-quantum well (MQW) structures are reported. The effect of variation in the dielectric constant of “barrier” layers periodically arranged in the MQWs is investigated.

Photoluminescence of InGaN/GaN and AlGaN/GaN multiple quantum well structures: role of depletion fields and polarization fields

2003 ◽  
Vol 195 (3) ◽  
pp. 477-477
Author(s):  
B. Monemar ◽  
P. P. Paskov ◽  
H. Haratizadeh ◽  
P. O. Holtz ◽  
J. P. Bergman ◽  
...  
Keyword(s):  
Quantum Well ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Quantum Well Structures

scholarly journals Role of Sb in the growth and optical properties of 1.55μm GaInN(Sb)As∕GaNAs quantum-well structures by molecular-beam epitaxy

2005 ◽  
Vol 87 (18) ◽  
pp. 181908 ◽  
Author(s):  
H. D. Sun ◽  
S. Calvez ◽  
M. D. Dawson ◽  
J. A. Gupta ◽  
G. I. Sproule ◽  
...  
Keyword(s):  
Optical Properties ◽  
Molecular Beam Epitaxy ◽  
Quantum Well ◽  
Molecular Beam ◽  
Quantum Well Structures
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