Results 31 to 40 of about 8,090 (214)
Scientific Reports, 2021 Smart integrative lighting systems aim to support human health and wellbeing by capitalising on the light-induced effects on circadian rhythms, sleep, and cognitive functions, while optimising the light’s visual aspects like colour fidelity, visual ...
Babak Zandi +5 more
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Strain-stress study of AlxGa1-xN/AlN heterostructures on c-plane sapphire and related optical properties [PDF]
, 2019 This work presents a systematic study of stress and strain of AlxGa1-xN/AlN with composition ranging from GaN to AlN, grown on a c-plane sapphire by metal-organic chemical vapor deposition, using synchrotron radiation high-resolution X-ray diffraction ...
Chung, T. F. +7 more
core +3 more sources
IEEE Photonics Journal, 2017 The photoelectric properties and physical mechanism of AlGaN-based deep ultraviolet light emitting diodes (DUV-LEDs) with the superlattice p-type doping layer (PSL) are studied numerically and compared with the Al-composition (50%) conventional p ...
Qianying Si +4 more
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Advanced Science, 2020 Efficient and low‐cost production of high‐quality aluminum nitride (AlN) films during heteroepitaxy is the key for the development of deep ultraviolet light‐emitting diodes (DUV‐LEDs).
Hongliang Chang +14 more
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Efficacy of 265-nm ultraviolet light in inactivating infectious SARS-CoV-2
Journal of Photochemistry and Photobiology, 2021 Although, Low-pressure (LP) mercury lamps that emit wavelengths of around 254 nm have been widely applied as ultraviolet (UV) light devices for decontamination of microorganisms, they have raised environmental concerns due to their mercury content ...
Hiroshi Shimoda +3 more
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Quasisolitons in self-diffusive excitable systems, or Why asymmetric diffusivity does not violate the Second Law [PDF]
, 2016 Solitons, defined as nonlinear waves which can reflect from boundaries or transmit through each other, are found in conservative, fully integrable systems.
Biktashev, V. N., Tsyganov, M. A.
core +2 more sources
Environment International, 2022 A general-purpose virus inactivation unit that can inactivate viruses was developed using deep ultraviolet (DUV) LEDs that emit DUV rays with a wavelength of 280 nm.
Kotaro Takamure +5 more
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Rapid inactivation of SARS-CoV-2 with deep-UV LED irradiation
Emerging Microbes and Infections, 2020 The spread of novel coronavirus disease 2019 (COVID-19) infections worldwide has raised concerns about the prevention and control of SARS-CoV-2. Devices that rapidly inactivate viruses can reduce the chance of infection through aerosols and contact ...
Hiroko Inagaki +4 more
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IEEE Access, 2021 Significant efforts have been devoted to improve the external quantum efficiency (EQE) of AlGaN-based top-emitting deep-UV light-emitting diodes (DUV LEDs).
Tae Hoon Park +3 more
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DEEP ULTRAVIOLET LIGHT EMITTING DIODES (DUV LEDS)
Journal of Engineering Science (Chişinău), 2018 There are a variety of applications for devices that extend into the deep-UV, including biological agent detection and optical storage. The nitride material system is a set of semiconducting compounds that have wavelengths that span a broad range, from yellow to deep-UV. AlGaN has a direct bandgap that extends into the deep-UV range; the device-quality
openaire +3 more sources