Results 71 to 80 of about 2,177,698 (204)

On the p-AlGaN/n-AlGaN/p-AlGaN Current Spreading Layer for AlGaN-based Deep Ultraviolet Light-Emitting Diodes

open access: yesNanoscale Research Letters, 2018
In this report, AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs) with different p-AlGaN/n-AlGaN/p-AlGaN (PNP-AlGaN) structured current spreading layers have been described and investigated.
Jiamang Che   +7 more
doaj   +1 more source

Detection Techniques for Polycyclic Aromatic Hydrocarbons and Their Metabolites: A Review

open access: yesphysica status solidi (a), Volume 223, Issue 17, 9 September 2026.
Overview of the different techniques that can be used to detect polyclic aromatic hydrocarbons and their metabolites. Polycyclic aromatic hydrocarbons (PAHs) are a class of organic pollutants affecting the environment as well as individual health that has been linked to various diseases including cancer.
Martin Wolfgang Konrad   +3 more
wiley   +1 more source

병원성 미생물 저감화를 위한 DUV-LED 적용 및 최적화 연구

open access: yes, 2015
학위논문 (석사)-- 서울대학교 대학원 : 농생명공학부, 2015. 2. 강동현.The UV irradiation for treating food has been approved by the U.S. Food and Drug Administration. So far, most UV treatment is performed by low-pressure (LP) UV lamp of 253.7 nm.
신주연
core  

A Review of AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes on Sapphire

open access: yesApplied Sciences, 2018
This paper reviews the progress of AlGaN-based deep-ultraviolet (DUV) light emitting diodes (LEDs), mainly focusing in the work of the authors’ group.
Yosuke Nagasawa, Akira Hirano
doaj   +1 more source

Enhancing the performance of AlGaN-based DUV-LEDs with multifocal laser stealth dicing

open access: yesOptics Express
In this study, AlGaN-based deep-ultraviolet light-emitting diodes (DUV-LEDs) processed via standard laser dicing (SLD) and multifocal laser stealth dicing (MFLSD) were investigated. Adopting the MFLSD technology would generate a roughing surface rather than the V-shaped grooves on the sidewall of 508 × 508 µm 2
Meng-Chun Shen   +9 more
openaire   +2 more sources

Neuromorphic Deep‐Ultraviolet Signal Processing Using a‐Ga2O3

open access: yesAdvanced Electronic Materials, Volume 12, Issue 17, 7 September 2026.
Amorphous gallium oxide (a‐Ga2O3) metal‐semiconductor‐metal photodetectors exhibit paired‐pulse facilitation arising from charge trapping. Four‐bit UVC binary sequences are encoded into separable conductance states. An RC equivalent circuit model of the device is deployed in single‐ and composite multi‐node reservoir computers, achieving ∼95% accuracy ...
Sidhant Sharma   +6 more
wiley   +1 more source

Operation of spatial light modulators in DUV light

open access: yes, 2022
S.277-284The Fraunhofer Institute for Microelectronic Circuits and Systems (FhG-IMS) has developed spatial light modulators (SLM), which are used in a pattern generator for DUV laser mask writing developed by Micronic Laser Systems.
Krellmann, M.   +6 more
core   +1 more source

Performance study of UV micro-LEDs with AlGaN quantum dots and transparent tunnel junction

open access: yesNext Nanotechnology
It is well known that the size of deep ultraviolet (DUV) micro LED (μLEDs) decreases, although bandwidth improves, the optical power drops sharply, severely limiting the application of DUV μLEDs in optical communication.
Yun-Cheng Hsu   +11 more
doaj   +1 more source

Skin Impression Modeling Across Different Skin Types Under Different Scenes

open access: yesColor Research &Application, Volume 51, Issue 5, September/October 2026.
How do Chinese perceive skin color of different ethnic groups under different shooting and viewing conditions (i.e., illuminance levels, CCTs, scenes and model‐observer familiarity)? ABSTRACT This paper presents a comprehensive study investigating how facial skin colors influence various impressions across different ethnicities and under different ...
Beijia Qin   +2 more
wiley   +1 more source

Wafer‐Scale Near‐Infrared Metalenses With High Performance and Low Cost

open access: yesNanophotonics, Volume 15, Issue 16, 26 August 2026.
Widespread adoption of metalenses is constrained by prohibitive cost of wafer‐level fabrication. This work achieves 8‐inch wafer‐level fabrication with high uniformity (feature deviation < 5%) and reliable performance by step‐and‐repeat nanoimprint lithography.
Wanjiao Zhang   +5 more
wiley   +1 more source

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