Summary Abstract: Light scattering determination of band offsets in GaAs–InxGa1−xAs quantum wells

1987 ◽  
Vol 5 (4) ◽  
pp. 1256 ◽  
Author(s):  
J. Menéndez
Keyword(s):  
Light Scattering ◽  
Quantum Wells ◽  
Band Offsets

Light scattering determination of band offsets in and quantum wells: A comparative study

1987 ◽  
Vol 3 (2) ◽  
pp. 163-166 ◽  
Author(s):  
J Meneńdez ◽  
A Pinczuk ◽  
D.J Werder ◽  
A.C Gossard ◽  
J.H English ◽  
...  
Keyword(s):  
Light Scattering ◽  
Comparative Study ◽  
Quantum Wells ◽  
Band Offsets

A Purely Spectroscopic Technique for Determining Energy Band Offsets in Quantum Wells

1991 ◽  
Vol 240 ◽  
Author(s):  
Emil S. Koteies
Keyword(s):  
Quantum Wells ◽  
Valence Band ◽  
Accurate Determination ◽  
Energy Difference ◽  
Spectroscopic Technique ◽  
Band Offsets ◽  
Band Energy ◽  
Semiconductor Quantum Wells ◽  
Sensitive Function

ABSTRACTWe have developed a novel experimental technique for accurately determining band offsets in semiconductor quantum wells (QW). It is based on the fact that the ground state heavy- hole (HH) band energy is more sensitive to the depth of the valence band well than the light-hole (LH) band energy. Further, it is well known that as a function of the well width, Lz, the energy difference between the LH and HH excitons in a lattice matched, unstrained QW system experiences a maximum. Calculations show that the position, and more importantly, the magnitude of this maximum is a sensitive function of the valence band offset, Qy, which determines the depth of the valence band well. By fitting experimentally measured LH-HH splittings as a function of Lz, an accurate determination of band offsets can be derived. We further reduce the experimental uncertainty by plotting LH-HH as a function of HH energy (which is a function of Lz ) rather than Lz itself, since then all of the relevant parameters can be precisely determined from absorption spectroscopy alone. Using this technique, we have derived the conduction band offsets for several material systems and, where a consensus has developed, have obtained values in good agreement with other determinations.

Light-scattering determination of electron tunneling gaps in double quantum wells

1996 ◽  
Vol 40 (1-8) ◽  
pp. 291-293 ◽  
Author(s):  
A.S. Plaut ◽  
A. Pinczuk ◽  
B.S. Dennis ◽  
J.P. Eisenstein ◽  
L.N. Pfeiffer ◽  
...  
Keyword(s):  
Light Scattering ◽  
Quantum Wells ◽  
Electron Tunneling ◽  
Double Quantum

Determination of single-particle relaxation time from light scattering spectra in modulation-doped quantum wells

1987 ◽  
Vol 36 (3) ◽  
pp. 1565-1569 ◽  
Author(s):  
G. Fasol ◽  
N. Mestres ◽  
M. Dobers ◽  
A. Fischer ◽  
K. Ploog
Keyword(s):  
Relaxation Time ◽  
Light Scattering ◽  
Quantum Wells ◽  
Single Particle ◽  
Scattering Spectra

Light scattering determination of band offsets inGaAs−AlxGa1−xAsquantum wells

1986 ◽  
Vol 33 (12) ◽  
pp. 8863-8866 ◽  
Author(s):  
J. Menéndez ◽  
A. Pinczuk ◽  
D. J. Werder ◽  
A. C. Gossard ◽  
J. H. English
Keyword(s):  
Light Scattering ◽  
Band Offsets
Sign in / Sign up

Export Citation Format

Share Document