WebA new measure to enhance the performance of InAs quantum dot solar cell is proposed and measured. One monolayer AlAs is deposited on top of InAs quantum dots (QDs) in multistack solar cells. The devices were fabricated by molecular beam epitaxy. In situ annealing was intended to tune the QD density. A set of four WebThis paper reports InAs quantum-well (QW) MOSFETs with record transconductance (g m,max = 1.73 mS/μm) and high-frequency performance (f T = 245 GHz and f max = 355 GHz) at L g = 100 nm. This record performance is achieved by using a low D it composite Al 2 O 3 /InP gate stack, optimized layer design and a high mobility InAs channel. This work is …
Phys. Rev. B 104, 184412 (2024) - Direct observation of spin ...
WebApr 10, 1998 · When embedded in GaAs, the InAs islands are small enough to confine the electronic states strongly in all three dimensions, making good quantum dots with low-temperature luminescence energies between 1.0 and 1.4 eV. The wetting layer behaves as a thin quantum well. WebMay 18, 2024 · A type-II InAs/AlAs $$_{0.16}$$ Sb $$_{0.84}$$ multiple-quantum well sample is investigated for the photoexcited carrier dynamics as a function of excitation … highland park hospital radiology phone number
Topological band structure in InAs/GaSb/InAs triple quantum wells
WebMay 11, 2015 · The InAs/GaSb quantum wells were grown using molecular beam epitaxy on n + (001) GaAs substrates. Two different material batches were used: a batch grown using high-mobility Ga (HM) and a batch ... WebApr 1, 2024 · In this paper, the intersubband optical absorption coefficients in strained InAs 1−x Sb x /Al y Ga 1−y As single quantum well are studied by solving the Schrödinger equation. Our results reveal that a red or a blue-shift can be obtained in the intersubband optical transitions as dependent on the shape of the InAsSb/AlGaAs quantum well and ... WebMar 20, 1995 · The design and the systematic characterization of the waveguide and the material properties of a modulator based on InGaAs/InAlAs quantum-well material for 1.5 … how is interest paid on an isa