Pressure dependence of the valence-band discontinuity in GaAs/AlAs and GaAs/AlxGa1−xAs quantum-well structures

1989 ◽  
Vol 39 (8) ◽  
pp. 5546-5549 ◽  
Author(s):  
J. D. Lambkin ◽  
A. R. Adams ◽  
D. J. Dunstan ◽  
P. Dawson ◽  
C. T. Foxon
Keyword(s):  
Quantum Well ◽  
Valence Band ◽  
Pressure Dependence ◽  
Quantum Well Structures ◽  
Valence Band Discontinuity

The pressure dependence of the valence band discontinuity in quantum well structures

1990 ◽  
Vol 3 (1-6) ◽  
pp. 57-59 ◽  
Author(s):  
V. A. Wilkinson ◽  
J. D. Lambkin ◽  
A. D. Prins ◽  
D. J. Dunstan
Keyword(s):  
Quantum Well ◽  
Valence Band ◽  
Pressure Dependence ◽  
Quantum Well Structures ◽  
Valence Band Discontinuity

NOVEL MEASUREMENT OF THE BAND DISCONTINUITIES IN (Al,Ga)As HETEROJUNCTIONS

1985 ◽  
Vol 56 ◽  
Author(s):  
B. A. WILSON ◽  
P. DAWSON ◽  
C. W. TU ◽  
R. C. MILLER
Keyword(s):  
Valence Band ◽  
Binding Energies ◽  
Band Alignment ◽  
Material System ◽  
Valence Band Offset ◽  
Quantum Well Structures ◽  
Accurate Knowledge ◽  
Novel Method ◽  
Band Alignments ◽  
Valence Band Discontinuity

AbstractA novel method has been used to obtain a direct and accurate measure of the valence-band discontinuity AlyGa1−yAs/AlAs heterojunctions in quantum-well structures. The technique takes advantage of the crossover occurring at a critical Al concentration above which the indirect X minimum in the AlAs becomes the lowest-energy conduction band in the system. Within these “staggered” band alignment structures, photoexcited electrons and holes are spatially separated, and recombination occurs across the interface. The resulting emission fixes the valence-band offset to within 1% without accurate knowledge of other system parameters, such as effective masses and exciton or dopant binding energies. These measurements represent the first direct optical confirmation of staggered band alignments in this technologically important material system.

On the Field-induced Refractive Index Change Considering Valence Band Nonparabolicity in Quantum Well Structures

1997 ◽  
Vol 36 (Part 2, No. 2B) ◽  
pp. L216-L219
Author(s):  
Takayuki Yamanaka ◽  
Naoto Yoshimoto ◽  
Koichi Wakita ◽  
Kiyoyuki Yokoyama
Keyword(s):  
Refractive Index ◽  
Quantum Well ◽  
Valence Band ◽  
Refractive Index Change ◽  
Index Change ◽  
Quantum Well Structures ◽  
Band Nonparabolicity

Determination of the valence‐band discontinuity of InP1−xGaxP1−zAsz(x∼0.13,z∼0.29) by quantum‐well luminescence

1979 ◽  
Vol 34 (12) ◽  
pp. 862-864 ◽  
Author(s):  
R. Chin ◽  
N. Holonyak ◽  
S. W. Kirchoefer ◽  
R. M. Kolbas ◽  
E. A. Rezek
Keyword(s):  
Quantum Well ◽  
Valence Band ◽  
Valence Band Discontinuity
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