Simulations of Space-charge Effects on Quantum-Well Devices using Self-Consistent Solution to the Schrödinger-Poisson Equations

1993 ◽  
Author(s):  
J. J. Chen ◽  
A. K. Chan ◽  
C. K. Chui
Keyword(s):  
Quantum Well ◽  
Space Charge ◽  
Space Charge Effects ◽  
Charge Effects ◽  
Poisson Equations ◽  
Self Consistent ◽  
Consistent Solution ◽  
Quantum Well Devices

Space charge effects in carrier escape from single quantum well structures

1999 ◽  
Vol 86 (9) ◽  
pp. 5109-5115 ◽  
Author(s):  
S. C. McFarlane ◽  
J. Barnes ◽  
K. W. J. Barnham ◽  
E. S. M. Tsui ◽  
C. Button ◽  
...  
Keyword(s):  
Quantum Well ◽  
Space Charge ◽  
Single Quantum ◽  
Space Charge Effects ◽  
Single Quantum Well ◽  
Charge Effects ◽  
Quantum Well Structures ◽  
Carrier Escape

scholarly journals Self-consistent simulation of GaAs/InGaAs/AlGaAs heterostructures photoluminescence spectra and its application to pHEMT structures diagnostics

2018 ◽  
Vol 52 (4) ◽  
pp. 479
Author(s):  
M.S. Mironova ◽  
V.I. Zubkov ◽  
A.L. Dudin ◽  
G.F. Glinskii
Keyword(s):  
Quantum Well ◽  
Optical Transition ◽  
Photoluminescence Spectra ◽  
As Doping ◽  
Poisson Equations ◽  
Self Consistent ◽  
Transition Matrix Elements ◽  
Consistent Solution ◽  
Strained Quantum Well ◽  
Non Destructive

AbstractWe performed numerical self-consistent solution of Schrödinger and Poisson equations for GaAs/InGaAs/AlGaAs pHEMT structures with quantum well. Based on the results we calculated optical transition matrix elements and photoluminescence spectra of such structures with the same design and different parameters (such as doping level and epitaxial layers width). In the photoluminescence spectra calculations three fitting parameters have been used. These parameters are GaAs/InGaAs valence band offset in strained quantum well, hole quasi Fermi level and inhomogeneous broadening. The PL peaks amplitudes and positions dependencies on the structure parameters were established. These dependencies can be used as the basis for pHEMT structure non-destructive diagnostics.

Space‐charge effects in photovoltaic double barrier quantum well infrared detectors

1993 ◽  
Vol 63 (6) ◽  
pp. 782-784 ◽  
Author(s):  
H. Schneider ◽  
E. C. Larkins ◽  
J. D. Ralston ◽  
K. Schwarz ◽  
F. Fuchs ◽  
...  
Keyword(s):  
Quantum Well ◽  
Space Charge ◽  
Infrared Detectors ◽  
Space Charge Effects ◽  
Double Barrier ◽  
Charge Effects

scholarly journals Space Charge Effects in Noble-Liquid Calorimeters and Time Projection Chambers

Instruments ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 9
Author(s):  
Sandro Palestini
Keyword(s):  
Space Charge ◽  
Scaling Laws ◽  
Relative Size ◽  
Design Solution ◽  
Space Charge Effects ◽  
Charge Effects ◽  
Time Projection Chambers ◽  
Drift Length ◽  
Calibration Methods ◽  
Time Projection

The subject of space charge in ionization detectors is reviewed, showing how the observations and the formalism used to describe the effects have evolved, starting with applications to calorimeters and reaching recent, large time-projection chambers. General scaling laws, and different ways to present and model the effects are presented. The relations between space-charge effects and the boundary conditions imposed on the side faces of the detector are discussed, together with a design solution that mitigates some of the effects. The implications of the relative size of drift length and transverse detector size are illustrated. Calibration methods are briefly discussed.

scholarly journals Numerical investigation of space charge effects on the positions of beamlets for transversely split beams

2017 ◽  
Vol 20 (12) ◽  
Author(s):  
S. Machida ◽  
C. Prior ◽  
S. Gilardoni ◽  
M. Giovannozzi ◽  
A. Huschauer ◽  
...  
Keyword(s):  
Space Charge ◽  
Numerical Investigation ◽  
Space Charge Effects ◽  
Charge Effects
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