Energy level of the Si-related DX-center in (AlyGa1−y)1−xInxAs

2015 ◽  
Vol 106 (10) ◽  
pp. 102104
Author(s):  
Stefan Heckelmann ◽  
David Lackner ◽  
Andreas W. Bett
Keyword(s):  
Energy Level ◽  
Dx Center

DX Center Energy Level in InxAl1−xAs Compounds

1999 ◽  
Vol 573 ◽  
Author(s):  
Hüseyin Sari ◽  
Harry H. wieder
Keyword(s):  
Energy Level ◽  
Conduction Band ◽  
Canonical Ensemble ◽  
Grand Canonical Ensemble ◽  
Persistent Photoconductivity ◽  
Dx Centers ◽  
Indium Concentration ◽  
Self Consistent ◽  
Dx Center ◽  
Grand Canonical

ABSTRACTThe presence of DX centers in InxAl1−xAs, primarily in the indirect portion of the InxAl1−xAs bandgap, has been determined using modulation doped InxAl1−xAs/InyGa1−yAs heterostructures by means of persistent photoconductivity (PPC) and galvanomagnetic measurements. From the cooling bias experiment, the PPC, and self consistent Poisson and Schrddinger simulations the ratio of the ionized shallow donors to the DX centers is obtained. Using this ratio in the grand canonical ensemble (GCE) the energy level of DX centers is determined. It is found that the DX energy level merges with the conduction band at x ≅ 0.42 and is resonant with the conduction band in higher indium concentration.

DX-center energy level dependence on silicon doping concentration in Al0.3Ga0.7As

1995 ◽  
Vol 24 (7) ◽  
pp. 907-912 ◽  
Author(s):  
G. Medeiros-Ribeiro ◽  
A. G. de Oliveira ◽  
G. M. Ribeiro ◽  
D. A. W. Soares
Keyword(s):  
Energy Level ◽  
Doping Concentration ◽  
Silicon Doping ◽  
Dx Center

DX Center in GaAs-GaAlAs Superlattices Suppression and Identification

1989 ◽  
Vol 148 ◽  
Author(s):  
S.L. Feng ◽  
J.C. Bourgoin ◽  
H.J. von Bardeleben ◽  
E. Barbier ◽  
J.P. Hirtz ◽  
...  
Keyword(s):  
Energy Level ◽  
Deep Level Transient Spectroscopy ◽  
Deep Level ◽  
Short Period ◽  
Short Period Superlattices ◽  
In Series ◽  
Dx Center ◽  
Transient Spectroscopy

ABSTRACTThe DX center has been studied by Deep Level Transient Spectroscopy in series of GaAs-Ga1-xAlxAs (x = 0.3) and GaAs-AlAs short period superlattices. The existence or not of this center can be understood if its energy level is linked to the L miniband. This suggest a possible way to suppress them by using specific superlattices.

Number of Steps Walked Predicts Energy Level, and Mood

2013 ◽  
Author(s):  
Robert E. Thayer ◽  
Olga Godes ◽  
Nicole E. Lobato ◽  
Marcelino Serrano ◽  
Jorge Hernandez ◽  
...  
Keyword(s):  
Energy Level
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