multiple quantum well
Observation of anomalous linear photogalvanic effect and its dependence on wavelength in undoped InGaAs/AlGaAs multiple quantum well
... We observed an anomalous linear photogalvanic effect (ALPGE) in undoped InGaAs/AlGaAs multiple quantum well and studied its wavelength dependence in details. This effect is believed to originate from ...
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Finite-Difference Time-Domain Simulations on Overgrown InGaN/GaN Multiple Quantum Well (MQW) Light Emitting Diode (LED).
... This dissertation presents the simulation results of light output for two structures emitting at λ = 460nm: with embedded voids and without them. The latter consists of a model depicting the conventional c-plane ...
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Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light emitting diodes
... investigate multiple quantum well [MQW] structures with charge control layers [CCLs] to produce highly efficient blue phosphorescent organic light-emitting diodes ...four quantum wells are ...
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Spin transport in undoped InGaAs/AlGaAs multiple quantum well studied via spin photocurrent excited by circularly polarized light
... The spin diffusion and drift at different excitation wavelengths and different temperatures have been studied in undoped InGaAs/AlGaAs multiple quantum well (MQW). The spin polarization was created ...
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Double-barrier Superlattice Infrared Photodetector Integrated with Multiple Quantum-Well Infrared Photodetector to Improve Performance
... In this paper, we utilize superlattice (SL) and multiple quantum well (MQW) as active regions to achieve multi-color detection. The thick and graded barriers are used for photoelectrons to resonate ...
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MBE grown GaAsBi/GaAs multiple quantum well structures : structural and optical characterization
... GaAsBi/GaAs multiple quantum well p–i–n diodes were grown by molecular beam ...that multiple quantum well regions with clearly de fi ned well periodicities were ...63 ...
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The Effects of Strained Multiple Quantum Well on the Chirped DFB-SOA All Optical Flip-Flop
... Using the modified time dependent TMM and FDTD method, we have numerically simulated the performance of a DFB-SOA as well as a MQW liner chirped DFB-SOA. To confirm the validity of the analysis, we have compared ...
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Calculating Transmittivity of Photonic Multiple Quantum Well for S Polarized Incidence
... photonic multiple quantum well structure is computed for normal and oblique incidence of s-polarized electromagnetic wave with centre wavelength at 1550 ...and well regions when this ...
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Cathodoluminescence studies of chevron features in semi-polar (11-22) InGaN/GaN multiple quantum well structures
... Epitaxial overgrowth of semi-polar III-nitride layers and devices often leads to arrowhead-shaped surface features, referred to as chevrons. We report on a study into the optical, structural, and elec- trical properties ...
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The influence of type I and type II triplet multiple quantum well structure on white organic light emitting diodes
... triplet multiple quantum well (MQW) structure and focus on the influence on WOLEDs through employing different potential barrier materials to form type-I and type-II MQWs, ...
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Modeling Multiple Quantum Well and Superlattice Solar Cells
... Quantum well and superlattice solar cells approaches consist on the insertion of a multiple quantum well or superlattice system in the intrinsic region of a p-i-n cell of wider bandgap ...
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Aperiodic and Asymmetric Multiple Quantum Well Photonic Devices: A Novel Transfer Matrix Based Model
... the well are different from those in the barrier as they are of different ...and well widths in the second structure are different from one ...the well and barrier widths are all unequal, the ...
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InGaN/GaN Multiple Quantum Well Light-Emitting Diodes Grown on Polar, Semi-polar and Non-Polar Orientations.
... reduced quantum confined stark effect (QCSE) owing to the reduced polarization fields and better light extraction by void wave-guiding and to a smaller extent by larger MQW surface area and reduced dislocation ...
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Modelling, assessment and applications of multiple quantum well optical absorption modulators
... of quantum confinement are not really evident until the layer thickness is less than the bulk material exciton radius (*300 A in GaAs), more sophisticated techniques are required for the growth of quantum ...
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Stimulated Emission in AlxGa1-xAs -GaAs Single and Multiple Quantum Well Heterostructure.
... In MBE, molecular beams of various elements are spraying from the heated effusion cells to the substrate. The shutters can be elaborately controlled to open and close, thus the abrupt change in the film thickness and ...
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Exciton saturation dynamics and spin gratings in multiple quantum well semiconductors
... in 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 ...
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Aperiodic Fibonacci Series Multiple Quantum Wells Lead to Topological Quantum Computation
... chain multiple quantum wells structures ...exotic quantum phases of matter that host quasiparticles with non-Abelian anyons partially due to the possibility of topological quantum computation ...
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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 multiple-quantum-well (MQW) solar cells were compared to p-i-n solar ...
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Ultrashort electromagnetic pulse control of intersubband quantum well transitions
... ductor quantum well with electromagnetic pulses with a duration of few cycles and even a single ...GaAs/AlGaAs quantum well structure, taking into account the ultrashort nature of the applied ...
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Study on the Luminescence Properties of the Strain Compensated Quantum Well
... strained quantum well, the InGaAs/GaAsP strain compensated quantum well (SCQW) has better optical properties, as the well layer and the barrier layer lattice mismatch with each other ...
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