Results 71 to 80 of about 110,088 (300)

All-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectors

, 2017
We demonstrate cryogenic, electrically-injected, waveguide-coupled Si light-emitting diodes (LEDs) operating at 1.22 $\mu$m. The active region of the LED consists of W centers implanted in the intrinsic region of a $p$-$i$-$n$ diode.
Buckley, Sonia, Chiles, Jeffrey, McCaughan, Adam N., Mirin, Richard P., Moody, Galan, Nam, Sae Woo, Shainline, Jeffrey M., Silverman, Kevin L., Stevens, Martin J.   +8 more
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Complex Evaluation of Light Sources in Case of Electric Power Cost Increase

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2008
The paper gives complex evaluation of efficiency of incandescent lamps, luminescent and light-emitting-diode (LED) light sources in case of electric power price increase.
Y. N. Kolesnik, A. V. Ivaneychik
doaj  

An LED pulser for measuring photomultiplier linearity

, 2011
A light-emitting diode (LED) pulser for testing the low-rate response of a photomultiplier tube (PMT) to scintillator-like pulses has been designed, developed, and implemented.
Aniol, B. Quinn, G.B. Franklin, M. Friend, O’Hagan, Vićić   +5 more
core   +1 more source

Absorbance based light emitting diode optical sensors and sensing devices [PDF]

, 2008
The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of ...
Acharya, Andrew, Anfalt, Barron, Beach, Benson, Berry, Betteridge, Betteridge, Betteridge, Betteridge, Blundell, Boring, Bowden, Cantrell, Cardoso, Carroll, Chapin, Chediak, Chen, Clinch, Collins, Collins, Collins, Dasgupta, Dasgupta, Dasgupta, Dasgupta, David, Daykin, Deng, Dermot Diamond, Diamond, Diamond, Dong, Dybko, Eiichi, Ellis, Eom, Feres, Ferrer, Firstenberg-Eden, Flaschka, Fonseca, Fonseca, Freeman, Galanis, Gardolinski, Gotz, Greenway, Gros, Gros, Gros, Hauser, Hauser, Hauser, Hauser, Higgins, Ho, Holonyak, Hooley, Huang, Ichikawa, Jambunathan, Johns, Johnson, Kawamura, King, Koch, Kovac, Kuban, Kuo, Lau, Lau, Lau, Lau, Lau, Lee, Li, Liu, Liu, Liu, Liu, Lu, Lu, Lyddy-Meaney, Marle, Martina O’Toole, Matias, Mims, Mims, Mitrani, O'Toole, O'Toole, O'Toole, Pacquit, Pacquit, Park, Petsul, Rainelli, Ramırez-Garcıa, Ramirez-Garcia, Riley, Rocha, Samanta, Santos, Schawarz, Schmidt, Schmidt, Schnable, Schrodle, Sequeira, Sequeira, Singh, Smardzewski, Smiddy, Sombatsompop, Sonne, Suzuki, Suzuki, Taib, Tan, Taniyasu, Teshima, Toda, Trojanowicz, Trojanowicz, Trojanowicz, Tubino, Tubino, Vachirapatama, White, Worsfold, Yamada, Yang, Zagatto, Zhang, Zude, Zukauskas   +138 more
core   +3 more sources

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

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

Advanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio, Martina Mugnano, Valentina Marchesano, Alejandro Calabuig, Zhe Wang, Gennaro Giordano, Francesca Borrelli, Simonetta Grilli, Pietro Ferraro   +8 more
wiley   +1 more source

Bio‐Orthogonally Crosslinked Supramolecular Polymer Bottlebrush Hydrogels for Long‐Term 3D Cell Culture

Advanced Functional Materials, EarlyView.
Fibrous benzenetrispeptide (BTP) hydrogels, fabricated via strain‐promoted azide‐alkyne cycloaddition (SPAAC) crosslinking, form robust, bioinert networks. These hydrogels can support 3D cell culture, where cell viability and colony growth depend on the fiber content.
Ceren C. Pihlamagi, David Pretzel, Peer Nölte, Kourosh Rezaei, Ulrich S. Schubert, Johannes C. Brendel   +5 more
wiley   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

High-Speed Light Signal Transmitters for Optical Communication Based on Ultraviolet Radiation

Applied Sciences, 2020
A light signal transmitter based on ultraviolet radiation is realized on GaN-on-silicon platform. The light signal transmitter with ultra-small active area is fabricated by a double-etching process.
Xin Li, Yue Wu, Jialei Yuan, Shuyu Ni, Chuan Qin, Yan Jiang, Jie Li, Yongjin Wang   +7 more
doaj   +1 more source