Results 1 to 10 of about 38,865 (142)

Progress on AlGaN-based solar-blind ultraviolet photodetectors and focal plane arrays

open access: yesLight: Science and Applications, 2021
Solar-blind ultraviolet (UV) photodetectors (PDs) have attracted tremendous attention in the environmental, industrial, military, and biological fields. As a representative III-nitride material, AlGaN alloys have broad development prospects in the field ...
Qing Cai, Haifan You, Hui Guo
exaly   +2 more sources

Enhancement of Electro-Optical Characteristics in GaN-Based Ultraviolet Laser Diodes Through Upper Optical Confinement Structure Design [PDF]

open access: yesNanomaterials
Two series of laser diodes with different AlGaN cladding layers were investigated, and it was found that the internal absorption loss was reduced by using a u-AlGaN and p-AlGaN composite upper cladding layer, and the performance of LD was improved.
Zhiwei Li   +5 more
doaj   +2 more sources

Rapid inactivation of human respiratory RNA viruses by deep ultraviolet irradiation from light-emitting diodes on a high-temperature-annealed AlN/Sapphire template

open access: yesOpto-Electronic Advances, 2023
Efficient and eco-friendly disinfection of air-borne human respiratory RNA viruses is pursued in both public environment and portable usage. The AlGaN-based deep ultraviolet (DUV) light-emission diode (LED) has high practical potentials because of its ...
Ke Jiang   +10 more
doaj   +1 more source

Investigation of The Effectiveness of Plant Based Algan Hemostatic Agent in a Rat Model of Femoral Arterial Bleeding

open access: yesBezmiâlem Science, 2022
Objective:The aim of this study is to evaluate the efficacy of the Algan Hemostatic Agent (AHA) available in three different physical form (liquid, powder and sponge absorbed) in the femoral artery incision model in rats.Methods:A total of sixty-four 5-7
Hüsamettin EKİCİ   +6 more
doaj   +1 more source

Gate-controlled amplifiable ultraviolet AlGaN/GaN high-electron-mobility phototransistor

open access: yesScientific Reports, 2021
Gate-controlled amplifiable ultraviolet phototransistors have been demonstrated using AlGaN/GaN high-electron-mobility transistors (HEMTs) with very thin AlGaN barriers. In the AlGaN/GaN HEMTs, the dark current between the source and drain increases with
Seung-Hye Baek   +3 more
doaj   +1 more source

Optically pumped room temperature low threshold deep UV lasers grown on native AlN substrates

open access: yesOpto-Electronic Advances, 2020
We report here an optically pumped deep UV edge emitting laser with AlGaN multiple quantum wells (MQWs) active region grown on AlN substrate by low pressure organometallic vapor phase epitaxy (LP-OMVPE) in a high-temperature reactor.
Kumar Kalapala Akhil Raj   +8 more
doaj   +1 more source

Use of Laser Interferometry to Determine the End Time of the Plasma-Chemical Etching of p-GaN and AlGaN Layers of the p-GaN/AlGaN/GaN Heterostructure with Two-Dimensional Electron Gas

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
Regularities of the reflected signal intensity changing in time, recorded by the detector of the laser interferometer with the operating frequency of 670 nm during the inductively coupled plasma reactive ion etching in a Cl2/N2/O2 atmosphere of GaN, p ...
A. D. Yunik, A. H. Shydlouski
doaj   +1 more source

Effect of the back contact work function on the performance of Al0.1Ga0.9N/CdS/Si solar cell [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة
In the first phase of this study, a layer of cadmium sulphide (CdS) and a layer of aluminium gallium nitride (Al0.1GaN0.9) was deposited on a silicon substrate (10% AlN with 70% GaN) was deposited on a silicon substrate by using a pulse laser deposition ...
Bashar Saleh
doaj   +1 more source

A sub-critical barrier thickness normally-off AlGaN/GaN MOS-HEMT [PDF]

open access: yes, 2014
A new high-performance normally-off gallium nitride (GaN)-based metal-oxide-semiconductor high electron mobility transistor that employs an ultrathin subcritical 3 nm thick aluminium gallium nitride (Al0.25Ga0.75N) barrier layer and relies on an induced ...
Al-Khalidi, Abdullah   +7 more
core   +1 more source

Growth Temperature Dependency of High Al Content AlGaN Epilayers on AlN/Al2O3 Templates

open access: yesCumhuriyet Science Journal, 2018
In this work, MOVPE (Metalorganic Vapor PhaseEpitaxy) growth and characterization studies of high Al content AlGaN epilayersare reported. We utilize high resolutionX-ray diffraction (HRXRD) and atomic force microscope (AFM) techniques toanalyze the ...
İlkay Demir
doaj   +1 more source

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