Results 151 to 160 of about 1,429,207 (385)

p‐Graphene/Quantum Dot/n‐GaAs Mixed‐Dimensional Heterostructure Junction for Ultrathin Light‐Emitting‐Diodes

Advanced Materials Interfaces, EarlyView.
Novel p‐type graphene/InAs quantum dot (QD)/n‐type GaAs mixed‐dimensional heterojunction structures are demonstrated for 1.3 µm light‐emitting diodes The p‐graphene serves as an ultrathin hole injection layer and the hybrid device shows 800 × stronger electroluminescence output powers than the reference LEDs without p‐graphene.
Quang Nhat Dang Lung, Rafael Jumar Chu, Eungbeom Yeon, Yeonhwa Kim, May Angelu Madarang, Won Jun Choi, Daehwan Jung   +6 more
wiley   +1 more source

Satellite communications, Robert M. Gagliardi, Lifetime Learning, Belmont, CA, 1984. No. of pages: 474. Price:$39.00 [PDF]

, 1984
R. LIU
openalex   +1 more source

Temperature Dependent Spin Dynamics in La0.67Sr0.33MnO3/Pt Bilayers

Advanced Materials Interfaces, EarlyView.
Visualization of inverse spin Hall effect due to scattering of the injected pure spin current via spin pumping ferromagnetic resonance in LSMO/Pt micro device. Abstract Complex ferromagnetic oxides such as La0.67Sr0.33MnO3 (LSMO) offer pathways for creating energy‐efficient spintronic devices with new functionalities.
Biswajit Sahoo, Akilan K, Katherine Matthews, Alexandre Pofelski, Alex Frañó, Eric E Fullerton, Sebastien Petit‐Watelot, Juan‐Carlos Rojas Sanchez, Sarmistha Das   +8 more
wiley   +1 more source

Carbonization Tuned Core‐Shell Fe3O4@C Nanostructures with Enhanced Electromagnetic Wave Absorption

Advanced Materials Interfaces, EarlyView.
The core‐shell structured Fe3O4@C composites are prepared by employing an in situ polymerization and carbonization treatment method. The effect of carbonization temperature on electromagnetic wave absorption of H‐FO@C composites is symmetrically analyzed, and the impedance matching and attenuation ability are improved significantly by controlling ...
Jiang Guo, Yukun Sun, Xu Li, Guangmin Zhao, Mohamed H. Helal, Duo Pan, Hamdy Khamees Thabet, Wenling Wu, Waras Abdul, Salah M. El‐Bahy, Hassan Algadi, Zhanhu Guo, Jianfeng Zhu   +12 more
wiley   +1 more source

Circuit-switch architecture for a 30/20-GHz FDMA/TDM geostationary satellite communications network [PDF]

, 1992
WILLIAM IVANCIC
openalex   +1 more source

Satellite Laser Communication

, 2010
We applied Chu and Hogg’s key cloud attenuation results to Italsat observations (9) and cloud water analysis (11) to estimate worldwide laser attenuation for satellite- ground communication links. Section 3 gave worldwide zenith attenuation estimates for 80% availability, 90% availability, and 70% availability.
openaire   +4 more sources

The Rise of Refractory Transition‐Metal Nitride Films for Advanced Electronics and Plasmonics

Advanced Materials Interfaces, EarlyView.
Transition‐metal nitrides (TMNs) are exceptional materials with high stability, biocompatibility, and semiconductor integration, which have been extensively employed in various fields. However, the epitaxial growth of TMN films remains a challenge. The absence of high‐quality TMNs limits the understanding of their condensed matter physics and hinders ...
Jiachang Bi, Ruyi Zhang, Xiong Yao, Yanwei Cao   +3 more
wiley   +1 more source

Communication Constellation Design of Minimum Number of Satellites with Continuous Coverage and Inter-Satellite Link [PDF]

arXiv
The recent advancement in research on distributed space systems that operate a large number of satellites as a single system urges the need for the investigation of satellite constellations. Communication constellations can be used to construct global or regional communication networks using inter-satellite and ground-to-satellite links.
arxiv  

Evaporation‐Enhanced Redox Cycling for Rapid Detection of Attomolar SARS‐CoV‐2 Virions Using Nanolithography‐Free Electrochemical Devices

Advanced Materials Technologies, EarlyView.
This study presents microfabricated electrochemical sensors for detecting ultralow viral particles counts through evaporation‐enhanced redox cycling (E2RC). To achieve sub‐micrometer gap in interdigitated microelectrodes, a scalable, nanolithography‐free fabrication method is developed.
Pouya Soltan Khamsi, Vinay Kammarchedu, Aida Ebrahimi   +2 more
wiley   +1 more source

Organization and Control of Communications Satellites

, 1965
Harvey J. Levin
openalex   +2 more sources