Results 11 to 20 of about 1,939 (181)

Deep Ultraviolet Photodetector: Materials and Devices [PDF]

open access: yesCrystals, 2023
The application of deep ultraviolet detection (DUV) in military and civil fields has increasingly attracted the attention of researchers’ attention.
Wannian Fang   +8 more
doaj   +2 more sources

Greatly Enhanced Wall-Plug Efficiency of N-polar AlGaN-Based Deep Ultraviolet Light-Emitting Diodes

open access: yesIEEE Photonics Journal, 2021
In this work, we numerically investigate the N-polar AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs) over the Ga-polar DUV LEDs. The light output power has increased from 7.1 mW of Ga-polar DUV LED to 18.8 mW of N-polar DUV LED at 60 mA ...
Hongchang Tao   +4 more
doaj   +2 more sources

A Novel Liquid Packaging Structure of Deep-Ultraviolet Light-Emitting Diodes to Enhance the Light-Extraction Efficiency

open access: yesCrystals, 2019
To realize high-efficiency, AlGaN-based, deep-ultraviolet light-emitting diodes (DUV-LEDs), enhancing their light-extraction efficiency and reducing thermal resistance is very crucial.
Chieh-Yu Kang   +5 more
doaj   +2 more sources

High-Power, Solid-State, Deep Ultraviolet Laser Generation

open access: yesApplied Sciences, 2018
At present, deep ultraviolet (DUV) lasers at the wavelength of fourth harmonics of 1 μm (266 nm/258 nm) and at the wavelength of 193 nm are widely utilized in science and industry.
Hongwen Xuan   +5 more
doaj   +2 more sources

Enhancing the Light-Extraction Efficiency of AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes by Optimizing the Diameter and Tilt of the Aluminum Sidewall

open access: yesCrystals, 2018
To realize high-efficiency AlGaN-based deep-ultraviolet light-emitting diodes (DUV-LEDs), enhancing their light-extraction efficiency (LEE) is crucial. This paper proposes an aluminum-based sidewall reflector structure that could replace the conventional
Yung-Min Pai   +6 more
doaj   +2 more sources

Band-Engineered Structural Design of High-Performance Deep-Ultraviolet Light-Emitting Diodes

open access: yesCrystals, 2021
In this study, systematic structural design was investigated numerically to probe into the cross-relating influences of n-AlGaN layer, quantum barrier (QB), and electron-blocking layer (EBL) on the output performance of AlGaN deep-ultraviolet (DUV) light-
Jih-Yuan Chang   +5 more
doaj   +2 more sources

Solar-blind deep-ultraviolet photodetectors based on solution-synthesized quasi-2D Te nanosheets

open access: yesNanophotonics, 2020
Solar-blind deep ultraviolet (DUV) photodetectors with high responsivity (R) and fast response speed are crucial for practical applications in astrophysical analysis, environmental pollution monitoring, and communication.
Cao Rui   +10 more
doaj   +2 more sources

Carrier Transport in a Deep Ultraviolet Mixed Quantum Well Light Emitting Diode

open access: yesIEEE Photonics Journal
Aluminium Gallium Nitride (AlGaN) based light emitting diodes (LED) are the enabling technology for compact emitters of deep ultraviolet (DUV) radiation and are in high demand for environmental and medical applications.
Friedhard Romer   +7 more
doaj   +2 more sources

Solid–Liquid Hybrid‐State Organic Lens for Highly Efficient Deep Ultraviolet Light‐Emitting Diodes

open access: yesAdvanced Photonics Research, 2022
Deep ultraviolet light‐emitting diodes (DUV‐LEDs) are considered to be the most promising ultraviolet light sources for effective and fast sterilization under the worldwide spread of the coronavirus disease (COVID‐19).
Zongtao Li   +7 more
doaj   +1 more source

Extremely Ultranarrow Linewidth Based on Low-Symmetry Al Nanoellipse Metasurface

open access: yesNanomaterials, 2022
Plasmonic nanostructures with ultranarrow linewidths are of great significance in numerous applications, such as optical sensing, surface-enhanced Raman scattering (SERS), and imaging.
Liangyu Wang   +3 more
doaj   +1 more source

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