Articles with "quantum well" as a keyword



Metamorphic InGaAs/InAsPSb Quantum Well Light Emitting Diodes for Operation in the Short‐Wave Infrared Region

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202406355

Abstract: Solid‐state infrared sources designed to emit wavelengths above 2 µm often face challenges in achieving high emission efficiency, minimizing power consumption, and reducing fabrication costs. In response, a 2.4 µm wavelength light emitting diode (LED)… read more here.

Keywords: wave infrared; metamorphic ingaas; light emitting; quantum well ... See more keywords

A Light‐Hole Germanium Quantum Well on Silicon

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202201192

Abstract: The quiet quantum environment of holes in solid‐state devices is at the core of increasingly reliable architectures for quantum processors and memories. However, due to the lack of scalable materials to properly tailor the valence… read more here.

Keywords: hole; quantum; germanium quantum; light hole ... See more keywords

Highly-Directional, Highly-Efficient Solution-Processed Light-Emitting Diodes of All-Face-Down Oriented Colloidal Quantum Well Self-Assembly.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202206582

Abstract: Semiconductor colloidal quantum wells (CQWs) provide anisotropic emission behavior originating from their anisotropic optical transition dipole moments (TDMs). Here, solution-processed colloidal quantum well light-emitting diodes (CQW-LEDs) of a single all-face-down oriented self-assembled monolayer (SAM) film… read more here.

Keywords: colloidal quantum; solution processed; face oriented; solution ... See more keywords

Carrier Dynamics and Structural Analyses of Orange/Red In-Rich InGaN Double-Quantum Wells LED Hybridized by Blue InGaN Single-Quantum Well.

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Published in 2025 at "Small"

DOI: 10.1002/smll.202404587

Abstract: The carrier dynamics of orange/red LEDs incorporating In-rich In0.35Ga0.65N/GaN double quantum well (DQW) structures are explored. The improved hybrid LED structure incorporates an In-poor In0.2Ga0.8N single quantum well (SQW) alongside DQWs that are characterized by… read more here.

Keywords: carrier dynamics; double quantum; orange red; quantum well ... See more keywords

Enhancement of electron mobility in GaAs/AlxGa1-xAs square-parabolic double quantum well HEMT structure

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Published in 2019 at "Microsystem Technologies"

DOI: 10.1007/s00542-018-3727-3

Abstract: We show that the enhancement of electron mobility μ as function of well width w can be achieved in a GaAs/AlxGa1-xAs square-parabolic double quantum well (SPDQW) high electron mobility transistor (HEMT) structure. We consider the… read more here.

Keywords: quantum well; double quantum; electron mobility; quantum ... See more keywords

Analysis of microwave noise in an enhancement-mode dual-quantum-well InAs HEMT

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Published in 2019 at "Journal of Computational Electronics"

DOI: 10.1007/s10825-019-01365-9

Abstract: A systematic theoretical study is carried out on the microwave noise performance of an InAs-based dual-quantum-well double-gate high-electron mobility transistor. The proposed dual-quantum-well HEMT shows prominent small-signal analog/radiofrequency (RF) and noise performance. The results for… read more here.

Keywords: quantum well; dual quantum; frequency; noise ... See more keywords
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Increasing the internal quantum efficiency of green GaN-based light-emitting diodes by employing graded quantum well and electron blocking layer

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Published in 2020 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-020-02423-4

Abstract: By numerical investigation of various structures, we have proposed a promising single quantum well device for efficient green InGaN-based light-emitting diodes. The peak internal quantum efficiency of the proposed structure, at lower current density, is… read more here.

Keywords: quantum; electron blocking; blocking layer; light emitting ... See more keywords

Multichannel Filtering Properties of a One Dimensional Photonic Crystal Composed of Semiconductor Photonic Quantum Well Defect

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Published in 2018 at "Silicon"

DOI: 10.1007/s12633-018-9830-3

Abstract: Multichannel filtering properties of a one dimensional photonic crystal containing semiconductor photonic quantum well defect were theoretically investigated in the infrared region. We have considered two possible structures of photonic quantum well, symmetric ((AB)P(C1C2)Q(BA)P) and… read more here.

Keywords: multichannel filtering; photonic quantum; well defect; filtering properties ... See more keywords

Controllable diffraction pattern in semiconductor quantum well based on quantum coherence

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Published in 2018 at "Annals of Physics"

DOI: 10.1016/j.aop.2018.07.028

Abstract: Abstract In this paper, we study properties of diffraction of a weak probe field interacting with a symmetric semiconductor quantum well that is coherently manipulated by a standing wave. Based on the theory of quantum… read more here.

Keywords: diffraction pattern; quantum; diffraction; semiconductor quantum ... See more keywords

Quantum size and magnesium composition effects on the optical absorption in the MgxZn(1−x)O/ZnO quantum well

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Published in 2018 at "Chemical Physics Letters"

DOI: 10.1016/j.cplett.2018.01.010

Abstract: Abstract In this work, we investigated the effects of polarizations and structural parameters on the optical absorption coefficient (OAC) and the intersubband transition between the three lowest energy levels E 1 , E 2 ,… read more here.

Keywords: optical absorption; magnesium composition; mgxzn zno; quantum well ... See more keywords
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Optical absorption in a CdS/CdSe/CdS asymmetric quantum well

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Published in 2020 at "Chemical Physics Letters"

DOI: 10.1016/j.cplett.2020.137129

Abstract: Abstract We investigate the electronic and optical properties of a confined exciton in CdS/CdSe/CdS asymmetric quantum well taking into account the geometrical confinement in which the right well size for various values of barrier sizes… read more here.

Keywords: absorption; cds cdse; cds asymmetric; asymmetric quantum ... See more keywords