Results 1 to 10 of about 5,106,924 (122)

Single-Photon Sources Based on Novel Color Centers in Silicon Carbide P–I–N Diodes: Combining Theory and Experiment

open access: yesNano-Micro Letters, 2021
Highlights Theory of electrically driven single-photon sources based on color centers in silicon carbide p–i–n diodes. New method of determining the electron and hole capture cross sections by an optically active point defect (color center) from the ...
Igor A. Khramtsov, Dmitry Yu. Fedyanin
doaj   +2 more sources

Bright Silicon Carbide Single-Photon Emitting Diodes at Low Temperatures: Toward Quantum Photonics Applications

open access: yesNanomaterials, 2021
Color centers in silicon carbide have recently emerged as one of the most promising emitters for bright single-photon emitting diodes (SPEDs). It has been shown that, at room temperature, they can emit more than 109 photons per second under electrical ...
Igor A. Khramtsov, Dmitry Yu. Fedyanin
doaj   +3 more sources

Bright Single-Photon Emitting Diodes Based on the Silicon-Vacancy Center in AlN/Diamond Heterostructures

open access: yesNanomaterials, 2020
Practical implementation of many quantum information and sensing technologies relies on the ability to efficiently generate and manipulate single-photon photons under ambient conditions. Color centers in diamond, such as the silicon-vacancy (SiV) center,
Igor A. Khramtsov, Dmitry Yu. Fedyanin
doaj   +3 more sources

Fabrication and optical characterization of erbium-doped silicon diode for quantum communication applications [PDF]

open access: yesEPJ Web of Conferences, 2022
Quantum Key Distribution allows two users to exchange secret keys and it is based on the transmission of single photons or attenuated laser pulses. Recently, sources based on multiple single-photon emitters were demonstrated to be suitable for QKD. Here,
Tavani Giulio   +15 more
doaj   +1 more source

Coupled InGaAs Quantum Dots for Electro-Optic Modulation

open access: yesCrystals, 2021
We investigated the growth of vertically coupled In0.75Ga0.25As quantum dots (QDs) by varying the GaAs spacer thickness (d). Vertically-aligned triple-layer QDs of uniform size and highest accumulated strain are formed with d = 5 nm.
Kuei-Ya Chuang   +2 more
doaj   +1 more source

Ultrabright single-photon source on diamond with electrical pumping at room and high temperatures

open access: yesNew Journal of Physics, 2016
The recently demonstrated electroluminescence of color centers in diamond makes them one of the best candidates for room temperature single-photon sources.
D Yu Fedyanin, M Agio
doaj   +1 more source

Strong high-energy exciton electroluminescence from the light holes of polytypic quantum dots

open access: yesNature Communications
High-energy exciton emission could allow single-component multi-colour display or white light-emitting diodes. However, the thermal relaxation of high-energy excitons is much faster than the photon emission of them, making them non-emissive.
Xingzhi Wang   +8 more
doaj   +1 more source

Tracing the electron transport behavior in quantum-dot light-emitting diodes via single photon counting technique

open access: yesNature Communications
The electron injection and transport behavior are of vital importance to the performance of quantum-dot light-emitting diodes. By simultaneously measuring the electroluminescence-photoluminescence of the quantum-dot light-emitting diodes, we identify the
Qiang Su, Zinan Chen, Shuming Chen
doaj   +1 more source

Ultranarrow electroluminescence from magnetic excitons in the van der Waals antiferromagnetic semiconductor NiPS3

open access: yesNature Communications
Electrically driven light emission from two-dimensional (2D) semiconducting materials has enabled numerous optoelectronic technologies, including light-emitting diodes, solid-state lasers, and single-photon sources for quantum communication.
Dmitry Lebedev   +12 more
doaj   +1 more source

A Bifunctional Tunneling Device for Photodetection and Electroluminescence Using van der Waals Heterostructure

open access: yesAdvanced Electronic Materials
Two‐dimensional (2D) materials are widely used in various optical, electronic, and optoelectronic devices. However, the realization of visible light emission and near‐infrared photodetection functions in a single device remains a challenge.
Zi‐hao Dong   +8 more
doaj   +1 more source

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