Quantum well
An Exactly Solvable Algebraic Model for Single Quantum Well Treatments
... semiconductor quantum well struc- tures under the envelope-function and the effective-mass approximations where the effective mass of a carrier is spatially dependent on the graded composition of the se- ...
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Study on the Luminescence Properties of the Strain Compensated Quantum Well
... potential well material In- GaAs, and the barrier materials AlGaAs and GaAsP were respectively used to prepare the strained quantum wells and strain compensated quantum ...strained quantum ...
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Modeling Multiple Quantum Well and Superlattice Solar Cells
... narrow quantum well ...shallow quantum wells, where the carrier generation overcomes the re- ...the quantum wells are deeper (nitrogen percent increases) the carrier recombi- nation is ...
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Gallium arsenide quantum well modulators grown on silicon substrates
... a quantum well m o d u lato r and a reflector w ere driven by the desire to increase the interaction length betw een the light beam and the quantum ...
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Resonant Tunneling in Photonic Double Quantum Well Heterostructures
... double quantum well (PDQW) heterostructures composed of two different photonic ...photonic quantum wells are far away from each other, resonant states appear in the trans- mission spectrum of the ...
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Optical Gain and Confinement in Gaas/Algaas Structure Quantum Well Lasers
... multiple quantum wells as active region will provokes the optical gain expansion as the maximum gain get on higher standard according to the quantum well structures wells ...
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Ultrashort electromagnetic pulse control of intersubband quantum well transitions
... GaAs/AlGaAs quantum well structure, taking into account the ultrashort nature of the applied field, and show that high-efficiency population inversion is possible for specific pulse ...
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Graphene Semiconductor Quantum Well with Asymmetric Energy Gaps
... graphene quantum well possesses very dense quantum energy states which imply that quantum well of this type can absorb sun light with more different fre- ...graphene quantum ...
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Characterization and Analysis of Multi-Quantum Well Solar Cells.
... The ultimate goal in improving solar cells is to improve the efficiency at which the cells con- vert light into electrical power. This value is what drives cost analysis and is the appropriate “measuring stick” used to ...
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PROGRESS IN IDEAL MODELS OF QUANTUM WELL SOLAR CELLS
... inserting quantum wells in the intrinsic region of p-i-n solar cells the conversion efficiency could be enhanced ...of quantum well cells, suggested that such enhancement is only significant for ...
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Magneto – thermoelectric effects in quantum well in the presence of electromagnetic wave
... the Quantum Well in the presence of the EMW with parabolic ...Quantum Well. Estimating numerical values and graph for a GaAs/GaAsAl Quantum Well to see clearly dependence of the ...
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Responsivity of quantum well infrared photodetectors at terahertz detection wavelengths
... Quantum well infrared photodetectors ~QWIPs! have at- tracted the attention of many researchers during the last decade, 1– 4 and the detailed physical understanding of QWIP operation has stimulated study of ...
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Photocarrier escape time in quantum-well light-absorbing devices: Effects of electric field and well parameters
... Abstract—We analyze the dependence of the carrier escape time from a single-quantum-well optoelectronic device on the aplied electric field and well width and depth. For this purpose, a new simple ...
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Exciton saturation dynamics and spin gratings in multiple quantum well semiconductors
... multiple quantum wells, by a free carrier plasma as a result of phase space filling and Coulombic effects (neglecting ...in quantum well semiconductors and so only the exchange term was ...excited ...
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Bound states in continuum: Quantum dots in a quantum well
... InGaAs quantum dots embedded in a In- GaAs quantum well sendwiched by two GaAs bulk ...GaAs/InGaAs quantum well of width h over the region between −h/2 and ...The quantum dot is ...
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Transport properties of modulation-doped Si/SiGe quantum well structures
... Regarding the potential structural degradation of the sam ple over time, both sets of m easurem ents, carried out w ithin the referred time interval of 18 m onths, produced identical longitudinal and transverse m ...
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Fractional quantum Hall states in a Ge quantum well
... Ge quantum well in the fractional quantum Hall ...fit well with the predictions of a model of thermally assisted quantum ...fractional quantum Hall state responds to any slowly ...
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Engineering the exciton linewidth in II VI quantum well structures
... or 2-D binding energy is four times greater than the bulk or 3-D case.3 In forming real quantum well materials, we wish to choose structures such that the binding energy is substantially[r] ...
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A delta doped quantum well system with additional modulation doping
... single quantum well with additional modulation doping have been ...the quantum well, and therefore the electron system within the sample studied is 2D in nat- ...
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Graphene Electron States in a Quantum Well
... [5] well known in quantum ...a quantum well (which can be considered as a barrier for holes) are those corresponding just to that Klein (or “chiral”) tunneling in both ...
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