Intersubband hole-phonon and alloy disorder scattering in SiGe quantum wells

2001 ◽  
Vol 64 (24) ◽  
Author(s):  
Z. Ikonić ◽  
P. Harrison ◽  
R. W. Kelsall
Keyword(s):  
Quantum Wells ◽  
Alloy Disorder ◽  
Sige Quantum Wells ◽  
Disorder Scattering

Spin lifetimes and g-factor tuning in Si/SiGe quantum wells

2002 ◽  
Vol 13 (2-4) ◽  
pp. 504-507 ◽  
Author(s):  
W Jantsch ◽  
Z Wilamowski ◽  
N Sandersfeld ◽  
M Mühlberger ◽  
F Schäffler
Keyword(s):  
Quantum Wells ◽  
G Factor ◽  
Sige Quantum Wells

UV Emission Mechanisms in Quaternary AlInGaN Epilayers and Multiple Quantum Wells

2002 ◽  
Vol 722 ◽  
Author(s):  
Mee-Yi Ryu ◽  
C. Q. Chen ◽  
E. Kuokstis ◽  
J. W. Yang ◽  
G. Simin ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diode ◽  
Chemical Vapor ◽  
Excitation Power ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Excitation Power Density ◽  
Light Emitting ◽  
Uv Emission ◽  
Alloy Disorder

AbstractWe present the results on investigation and analysis of photoluminescence (PL) dynamics of quaternary AlInGaN epilayers and AlInGaN/AlInGaN multiple quantum wells (MQWs) grown by a novel pulsed metalorganic chemical vapor deposition (PMOCVD). The emission peaks in both AlInGaN epilayers and MQWs show a blueshift with increasing excitation power density. The PL emission of quaternary samples is attributed to recombination of carriers/excitons localized at band-tail states. The PL decay time increases with decreasing emission photon energy, which is a characteristic of localized carrier/exciton recombination due to alloy disorder. The obtained properties of AlInGaN materials grown by a PMOCVD are similar to those of InGaN. This indicates that the AlInGaN system is promising for ultraviolet applications such as the InGaN system for blue light emitting diode and laser diode applications.

Lateral Transport in Strained SiGe Quantum Wells Doped with Boron

1999 ◽  
Vol 211 (1) ◽  
pp. 495-499 ◽  
Author(s):  
M.S. Kagan ◽  
I.V. Altukhov ◽  
K.A. Korolev ◽  
D.V. Orlov ◽  
V.P. Sinis ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Lateral Transport ◽  
Sige Quantum Wells ◽  
Strained Sige
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