Results 31 to 40 of about 20,942 (191)

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

Crystals, 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, Chih-Hao Lin, Tingzhu Wu, Po-Tsung Lee, Zhong Chen, Hao-Chung Kuo   +5 more
doaj   +1 more source

Characteristics of collection and inactivation of virus in air flowing inside a winding conduit equipped with 280 nm deep UV-LEDs

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, Yasuaki Sakamoto, Yasumasa Iwatani, Hiroshi Amano, Tetsuya Yagi, Tomomi Uchiyama   +5 more
doaj   +1 more source

Detection of Noble Gas Scintillation Light with Large Area Avalanche Photodiodes (LAAPDs)

, 2004
Large Area Avalanche Photodiodes (LAAPDs) were used for a series of systematic measurements of the scintillation light in Ar, Kr, and Xe gas. Absolute quantum efficiencies are derived.
A. Rubbia, Aprile, Belogurov, Benetti, Bressi, Carvalho, Doke, Hurst, Karar, M. Messina, Miyajima, Moerman, Platzman, R. Chandrasekharan, Suzuki, Thomas   +15 more
core   +1 more source

Deep learning classification of deep ultraviolet fluorescence images toward intra-operative margin assessment in breast cancer

Frontiers in Oncology, 2023
BackgroundBreast-conserving surgery is aimed at removing all cancerous cells while minimizing the loss of healthy tissue. To ensure a balance between complete resection of cancer and preservation of healthy tissue, it is necessary to assess themargins of
Tyrell To, Tongtong Lu, Julie M. Jorns, Mollie Patton, Taly Gilat Schmidt, Tina Yen, Bing Yu, Dong Hye Ye   +7 more
doaj   +1 more source

High Efficiency Detection of Argon Scintillation Light of 128nm Using LAAPDs

, 2005
The possibility of efficient collection and detection of vacuum ultraviolet light as emitted by argon, krypton, and xenon gas is studied. Absolute quantum efficiencies of large area avalanche photodiodes (LAAPDs) are derived at these wavelengths.
Chandrasekharan, R., Knecht, A., Messina, M., Regenfus, C., Rubbia, A.   +4 more
core   +2 more sources

Enhanced Performance of AlGaN-Based Deep Ultraviolet Light-Emitting Diodes with Chirped Superlattice Electron Deceleration Layer

Nanoscale Research Letters, 2019
AlGaN-based deep ultraviolet (DUV) light-emitting diodes (LEDs) suffer from electron overflow and insufficient hole injection. In this paper, novel DUV LED structures with superlattice electron deceleration layer (SEDL) is proposed to decelerate the ...
Jiahui Hu, Jun Zhang, Yi Zhang, Huixue Zhang, Hanling Long, Qian Chen, Maocheng Shan, Shida Du, Jiangnan Dai, Changqing Chen   +9 more
doaj   +1 more source

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

Advanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl, Arsène Chemin, Adam H. Day, Rocio B. Rodriguez, Sneha Choudhury, Franziska Buchner, Kaan Atak, Christoph Merschjann, Emina Hadzifejzovic, Tim D. W. Claridge, Karin Larsson, Amélie Venerosy, Mailis M. Lounasvuori, Natalia Zabarska, Boyan Iliev, Thomas J. S. Schubert, Hugues A. Girard, Jean‐Charles Arnault, John S. Foord, Tristan Petit, Anke Krueger   +20 more
wiley   +1 more source

A distributional checklist of the leaf-cutting bees (Hymenoptera: Megachilidae) of Florida [PDF]

, 2005
The leaf-cutting bees are a diverse group which is commonly encountered all across the country. With over 600 North American species, most of which are in the genera Anthidium, Dianthidium, Stelis, Heriades, Hoplitis, Osmia, Megachile and Coelioxys ...
Leavengood, Jr., J. M., Serrano, D.
core   +1 more source

Constraints on Unparticle Physics from Solar and KamLAND Neutrinos

, 2007
Interest has been directed recently towards low energy implications of a non-trivial conformal sector of an effective field theory with an IR fixed point (\Lambda), manifest in terms of ``unparticles'' with bizarre properties.
Abraham, Ahmed, Alan, Aliev, Aliev, Anchordoqui, Anchordoqui, Appelquist, Appelquist, Araki, Bahcall, Bahcall, Bahcall, Bander, Banks, Beacom, Beacom, Berezhiani, Bhattacharyya, Cacciapaglia, Chen, Chen, Chen, Chen, Chen, Cheung, Cheung, Choudhury, Choudhury, Das, Davoudiasl, Delgado, Deshpande, Deshpande, Ding, Ding, Duraisamy, Fox, Freitas, Fukuda, Fukuda, Fukuda, Fukuda, Fukuda, Fukuda, Fukuda, Georgi, Georgi, Gogoladze, Goldberg, Gonzalez-Garcia, Greiner, Haim Goldberg, Hannestad, Huang, Kikuchi, Krasnikov, Learned, Lenz, Li, Li, Liao, Liao, Liao, Lipari, Lu, Luis Anchordoqui, Luo, Luo, Mack, Majumdar, Mathews, Mikheyev, Mohanta, Nakayama, Neubert, Pakvasa, Rizzo, Ryttov, Stephanov, Wolfenstein, Zhang, Zhou, Zwicky   +83 more
core   +1 more source

Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates

Advanced Functional Materials, EarlyView.
Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi, Adam D. Alfieri, Wangleong Chen, Deep Jariwala   +3 more
wiley   +1 more source