Results 91 to 100 of about 3,559,659 (295)

Light-Emitting Diode Photobiomodulation After Cerebral Ischemia

Frontiers in Neurology, 2019
Photobiomodulation (PBM) therapy is a promising therapeutic approach for several pathologies, including stroke. The biological effects of PBM for the treatment of cerebral ischemia have previously been explored as a neuroprotective strategy using ...
Bárbara Argibay, Francisco Campos, María Perez-Mato, Alba Vieites-Prado, Clara Correa-Paz, Esteban López-Arias, Andrés Da Silva-Candal, Vicente Moreno, Vicente Moreno, Carlos Montero, Carlos Montero, Tomás Sobrino, José Castillo, Ramón Iglesias-Rey   +13 more
doaj   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

Organic Light‐Emitting Diode in Phototherapy Applications

Advanced Photonics Research
After decades of development, organic light‐emitting diode (OLED) technology has matured significantly. OLED displays are now ubiquitous in consumer electronics and household appliances. As another major application branch, OLED lighting has also entered
Yingguang Zhu, Yonglan Hu, Yingjie Cui, Lixue Guo, Guohui Zhang, Haixia Qiu, Defu Chen, Changyong Pan, Huijuan Yin, Suling Zhao   +9 more
doaj   +1 more source

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella, Andrea Sessa, Yi‐Chen Tsai, Xuzhao Liu, Abdul Mannan, George Greaves, Yahya Saboon, Ben Spencer, Antonio Di Bartolomeo, Cinzia Casiraghi, Jessica Boland, Alessandro Grillo   +11 more
wiley   +1 more source

A next-generation light-emitting device: ZOGAN LED with a heterogeneous p-layer composed of oxide and nitride semiconductors

AIP Advances
We have developed a light-emitting device, called the ZOGAN light-emitting diode (LED). The ZOGAN LED is formed with the p-layer composed of both ZnO-based oxide and GaN-based nitride semiconductors.
Yung Ryel Ryu, Sung Ki Hong, E. Fred Schubert, Dong-Min Jeon, Dong-Soo Shin, Jong-In Shim, Sang-Mook Kim, Jong Hyeob Baek   +7 more
doaj   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

Advanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee, Joonbong Lee, Jinho Byun, Sang‐Hyeok Yang, A young Cho, Sangwoo Lee, Dae Haa Ryu, Hyunbin Chung, Hee Seo Yun, Moon Seop Choi, Yesul Choi, Sungkyun Park, Min‐Hyung Jung, Dongwon Lee, Yoon‐Uk Heo, Hu Young Jeong, Hongseok Kim, Shinhyeong Lee, Yunseok Kim, Young‐Min Kim, Jaekwang Lee, Taekjib Choi   +21 more
wiley   +1 more source

3D modelling of enhanced surface emission using surface roughening [PDF]

, 2006
A 3D FDTD modelling is used to study the effect of surface roughening on the vertical emission of a point source emitting at lambda0=0.94 mum embedded in GaAs with a mirror behind the dipole.
I.J. Buss, Buss, IJ, Geoff Nash, M.K. Haigh, D. Ho, Nash, G R, Haigh, Mary, Ian Craddock, J.G. Rarity, G. Nash, Cryan, MJ, John Rarity, Nash, GR, Rarity, JG, Martin Cryan, M.J. Cryan, Craddock, IJ, Ho, Y-LD, Mary Haigh, C.J. Railton, Haigh, MK, I.J. Craddock, Ian Buss, Chris Railton, Railton, CJ   +24 more
core   +1 more source

Photovoltaic Stimulation of Mouse and Pig Retina With Pyrolytic Carbon Microelectrodes Integrated on High‐Density Silicon Solar Cell Arrays

Advanced Healthcare Materials, EarlyView.
In this study, we fabricate photovoltaic retinal implants with pyrolytic carbon electrodes and test their ability to stimulate mouse and pig retinas when illuminated with near‐infrared light. We find increased spiking activity in both animal models compared to spontaneous activity and TTX controls and analyze the spike amplitude, latency and frequency.
Akihiro Matsumoto, Pratik Kusumanchi, Jesper Guldsmed Madsen, Asbjørn Cortnum Jørgensen, Gisele Alves dos Reis Benatto, Sune Thorsteinsson, Peter Behrensdorff Poulsen, Keisuke Yonehara, Toke Bek, Stephan Sylvest Keller, Rasmus Schmidt Davidsen   +10 more
wiley   +1 more source

Transfer or delivery of micro light-emitting diodes for light-emitting diode displays

AIP Advances, 2019
As the next-generation display technology, microscale light-emitting diode (μ-LED) displays have attracted significant attention recently. For applying μ-LEDs as direct emissive pixels in everyday display applications, many chips in a relatively small ...
Jaehee Cho, Jong Kyu Kim
doaj   +1 more source

Enhancing the photoluminescence quantum yields of blue-emitting cationic iridium(III) complexes bearing bisphosphine ligands [PDF]

, 2016
EZ-C acknowledges the University of St Andrews for financial support. We thank Johnson Matthey and Umicore AG for the gift of materials and Cihang Yu for the preparation of isopropxantphos. We thank Dr. Nail Shaveleev for the synthesis of NMS25. IDWS and
Henwood, Adam Francis, Slawin, Alexandra Martha Zoya, Di Mascio, Vincent, Kamer, Paul C J, Samuel, Ifor David William, Bansal, Ashu Kumar, Martínez-Sarti, Laura, Pertegás, Antonio, Bolink, Henk J., Zysman-Colman, Eli, Cordes, David Bradford, Rota Martir, Diego   +11 more
core   +1 more source