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   Articles with "gan quantum" as a keyword



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Optical properties of In x Ga 1-x N/GaN quantum-disks obtained by selective area sublimation

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recommendations! Published in 2017 at "Journal of Crystal Growth"

DOI: 10.1016/j.jcrysgro.2017.01.010

Abstract: Abstract We study the cathodoluminescence (CL) and the photoluminescence (PL) properties of In x Ga 1−x N/GaN quantum disks (QDisks) included in nanowires obtained by selective area sublimation from an In x Ga 1−x N/GaN… read more here.

Keywords: obtained selective; gan quantum; properties gan; quantum disks ... See more keywords

Effects of two-mode transverse optical phonons in bulk wurtzite AlGaN on electronic mobility in AlGaN/GaN quantum wells

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recommendations! Published in 2017 at "Journal of Applied Physics"

DOI: 10.1063/1.4974448

Abstract: The two-mode property of bulk transverse optical (TO) phonons in ternary mixed crystals of wurtzite AlxGa1-xN has been investigated by introducing impurity modes in a modified random-element isodisplacement model. Based on the dielectric continuous model,… read more here.

Keywords: effects two; gan quantum; two mode; algan gan ... See more keywords

GaN surface as the source of non-radiative defects in InGaN/GaN quantum wells

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recommendations! Published in 2018 at "Applied Physics Letters"

DOI: 10.1063/1.5048010

Abstract: Blue light-emitting diodes based on III-nitride semiconductors are nowadays widely used for solid-state lighting. They exhibit impressive figures of merit like an internal quantum efficiency close to 100%. This value is intriguing when considering the… read more here.

Keywords: quantum; gan quantum; source; ingan gan ... See more keywords

Mechanisms of GaN quantum dot formation during nitridation of Ga droplets

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recommendations! Published in 2020 at "Applied Physics Letters"

DOI: 10.1063/1.5133965

Abstract: We have examined the formation mechanisms of GaN quantum dots (QDs) via annealing of Ga droplets in a nitrogen flux. We consider the temperature and substrate dependence of the size distributions of droplets and QDs,… read more here.

Keywords: dot formation; formation nitridation; mechanisms gan; quantum dot ... See more keywords

Nitrogen-polar GaN quantum dots with tunable emission in the ultraviolet-A, B, and C bands

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recommendations! Published in 2024 at "Applied Physics Letters"

DOI: 10.1063/5.0223764

Abstract: In this study, we report on the molecular beam epitaxy and characterization of nitrogen-polar (N-polar) GaN quantum dots (QDs) grown on SiC substrates. By varying the growth conditions, the emission wavelengths of GaN QDs can… read more here.

Keywords: nitrogen polar; ultraviolet; gan quantum; quantum dots ... See more keywords

Effect of buffer layer thickness on recombination in zincblende InGaN/GaN quantum wells

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recommendations! Published in 2025 at "Journal of Physics D: Applied Physics"

DOI: 10.1088/1361-6463/ae1d8d

Abstract: InGaN/GaN quantum wells grown in the zincblende phase along the [001] direction are free of the internal electric fields that reduce the radiative recombination rate in conventional quantum wells grown along the c-axis in the… read more here.

Keywords: zincblende; buffer layer; quantum wells; gan quantum ... See more keywords

Ultrathin GaN quantum wells in AlN nanowires for UV-C emission

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recommendations! Published in 2023 at "Nanotechnology"

DOI: 10.1088/1361-6528/accaeb

Abstract: Molecular beam epitaxy growth and optical properties of GaN quantum disks in AlN nanowires were investigated, with the purpose of controlling the emission wavelength of AlN nanowire-based light emitting diodes. Besides GaN quantum disks with… read more here.

Keywords: quantum disks; aln nanowires; quantum; gan quantum ... See more keywords

AlGaN-Delta-GaN Quantum Well for DUV LEDs

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recommendations! Published in 2020 at "Photonics"

DOI: 10.3390/photonics7040087

Abstract: AlGaN-delta-GaN quantum well (QW) structures have been demonstrated to be good candidates for the realization of high-efficiency deep-ultraviolet (DUV) light-emitting diodes (LEDs). However, such heterostructures are still not fully understood. This study focuses on investigation… read more here.

Keywords: gan quantum; algan delta; delta gan; efficiency ... See more keywords