## Abstract The origin of indium fluctuations in indiumβrich quantum wells (QWs) is of high interest for direct green laser diodes. We present the correlation of morphological features such as macrosteps investigated by AFM measurements and wavelength fluctuations seen in cathodoluminescence images
Tight-Binding Simulation of an InGaN/GaN Quantum Well with indium Concentration Fluctuation
β Scribed by J. Gleize; A. Di Carlo; P. Lugli; J.M. Jancu; R. Scholz; O. Ambacher; D. Gerthsen; E. Hahn
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 119 KB
- Volume
- 0
- Category
- Article
- ISSN
- 1862-6351
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π SIMILAR VOLUMES
We report the results of calculations for the energies of confined electrons and holes and their wavefunction overlap in In x Ga 1--x N/GaN quantum wells (QWs) with an indium concentration of x = 15% in the well material. It is known that the observed increase in the photoluminescence lifetime with
The photoluminescence (PL) dynamics of InGaN/GaN quantum wells with different In concentrations x In have been measured. The PL emission forms a broad band consisting of two parts with dramatically different dynamics. The high energy part (QW H ) is present only under higher excitation densities (>1
## Abstract We report on the optical properties of a series of nonβpolar __a__βplane InGaN/GaN multiple quantum well (QW) structures of constant well width and varying indium concentration. The emission spectrum is dominated by recombination at regions of the QW intersected by basal plane stacking