Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Achim Dörnen"'
Publikováno v:
Journal of Applied Physics. 93:951-956
Two types of forbidden transitions are identified in In1−xGaxAs/InP undoped quantum wells (QWs) with compressive strain by low-temperature (1.8 K) magneto-optical absorption. One of them is due to the interband transitions with different principal
Publikováno v:
Semiconductor Science and Technology. 17:1213-1217
Low-temperature photoluminescence (PL) and optical absorption are carried out on a Ti-doped ZnTe bulk crystal with carefully optimized experimental conditions. The influence of excitation energy in the PL is checked. Two zero-phonon lines (ZPLs) are
Tensile strained InGaAs/InP multiple-quantum-well structures studied by magneto-optical spectroscopy
Publikováno v:
Journal of Applied Physics. 87:4303-4307
Low-temperature (1.8 K) magneto-optical absorption experiments have been performed on two tensile strained In1−xGaxAs/InP multiple-quantum-well samples. By using derivative spectra and the effective-mass equation of a quasi-two-dimensional exciton,
Publikováno v:
Journal of Crystal Growth. :8-12
GaInN layers play a key role in short wavelength optoelectronic devices for the visible spectrum. However, the epitaxial growth of In containing nitrides is more problematic than that of GaN and AlGaN. This requires a detailed understanding of the gr
Autor:
F. Adler, Heinz Schweizer, F. Scholz, A. Bauknecht, P. Ernst, M. Geiger, D. Haase, Achim Dörnen
Publikováno v:
Journal of Applied Physics. 83:1631-1636
The energy structure and the carrier relaxation in self-assembled InAs/GaAs quantum dots (SADs) is investigated by photoluminescence excitation spectroscopy (PLE) and photoluminescence (PL) at resonant excitation (below the GaAs and the wetting layer
Publikováno v:
Materials Science Forum. :1093-1098
Publikováno v:
Materials Science Forum. :697-702
Publikováno v:
Materials Science Forum. :707-712
Publikováno v:
Journal of Applied Physics. 91:2553-2555
Low-temperature (1.8 K) magneto-optical reflectivity spectroscopy together with derivative operation has been employed in evaluating the reduced effective mass and exciton binding energy in GaxIn1−xP/AlGaInP quantum wells (QWs). Low uncertainty of
Publikováno v:
Materials Science Forum. :797-802