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In the work, it is proposed iterative model for calculation of spatial-energy carrierspsila distribution in multiple quantum well heterostructure. The model takes into consideration the influence of non-uniform charge distribution on the potential profile. It is discussed the influence of different ways of the structure modification on the carriers transport rate. It is proposed the methodology of...
We have found the couples of heterogeneous semiconductor materials without band offsets in both conduction and valence bands, and with the different electron effective masses. Electron affinity rule has been applied for band offsets calculation. We have used the second order interpolation formulas to obtain material parameters of semiconductor alloys. The couples of semiconductors have been found...
We found a new class of heterostructures which have no discontinuities for one of the band edges and, therefore, called continuous-band heterostructures (CBHs). The promising properties of CBHs are discussed by consideration of their optical and electrical characteristics. CBH-based DBRs provide extremely low series resistance in comparison with conventional DBRs even at low level of doping that can...
The effect of the anisotropy of the valence band on the gain spectra of quantum wells is studied in the frame of kp-theory and envelope function approximation. In this paper shown that the application of axial approximation leads to understated gain. The maximum errors of gain spectra are located in the same points as peaks of gain spectrum at energy axis. Such errors can amount to 18,8% that makes...
In the paper, the methodology of asymmetric multiple quantum well separate confinement heterostructures (AMQW-SCH) modification in respect to the efficient of electron capture process is discussed. The proposed methodology allows to hold the position of working levels. The modification consists of following operations: a) changing an order of operating QWs, b) varying of barriers between non-identical...
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