Results 81 to 90 of about 934,985 (352)

Phosphorus Spin Coherence Times in Silicon at Very Low Temperatures [PDF]

open access: yesarXiv, 2010
Phosphorus donor spin coherence in isotopically pure 28 silicon is measured at very low temperatures using pulsed electron spin resonance.
arxiv  

In bloom [PDF]

open access: yes, 2010
Much of the phosphorus which ends up in stream sediment, either through soil erosion or via field drains, is transported attached to particles. The quantity and chemical form of phosphorus in the stream sediment largely controls its concentration in ...
Rawlins, Barry
core  

Quantum Hall Effect in Electron-Doped Black Phosphorus Field-Effect Transistors

open access: yes, 2018
The advent of black phosphorus field-effect transistors (FETs) has brought new possibilities in the study of two-dimensional (2D) electron systems. In a black phosphorus FET, the gate induces highly anisotropic 2D electron and hole gases. Although the 2D
Chang, Kai   +10 more
core   +2 more sources

Exploring Electronic States and Ultrafast Electron Dynamics in AlInP Window Layers: The Role of Surface Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
This study examines the surface characteristics of AlInP (001), crucial for advanced solar cells and photoelectrochemical devices. Using theoretical modeling and experiments, it identifies how phosphorus‐rich and indium‐rich surfaces create mid‐gap states that pin the Fermi level and influence ultrafast electron dynamics.
Mohammad Amin Zare Pour   +11 more
wiley   +1 more source

Spectroscopic signature of phosphate crystallization in Erbium-doped optical fibre preforms [PDF]

open access: yes, 2011
In rare-earth-doped silica optical fibres, the homogeneous distribution of amplifying ions and part of their spectroscopic properties are usually improved by adding selected elements, such as phosphorus or aluminum, as structural modifier. In erbium ion (
A.M. Jurdyc   +24 more
core   +3 more sources

Carbon Nanotube 3D Integrated Circuits: From Design to Applications

open access: yesAdvanced Functional Materials, EarlyView.
As Moore's law approaches its physical limits, carbon nanotube (CNT) 3D integrated circuits (ICs) emerge as a promising alternative due to the miniaturization, high mobility, and low power consumption. CNT 3D ICs in optoelectronics, memory, and monolithic ICs are reviewed while addressing challenges in fabrication, design, and integration.
Han‐Yang Liu   +3 more
wiley   +1 more source

Clustering of phosphorus atoms in silicon [PDF]

open access: yesNonlinear Phenom. Complex Syst.. Vol.11, No.3, (2008) 316-386, 2006
To explain the effect of electron density saturation at high phosphorus concentrations the model of negatively charged phosphorus clusters was compared with the experimental data. A number of negatively charged clusters incorporating a point defect and phosphorus atoms were investigated at temperatures of 920 and 1000 Celsius degrees.
arxiv  

Dietary phosphorus, serum phosphorus, and cardiovascular disease [PDF]

open access: yesAnnals of the New York Academy of Sciences, 2013
Recent epidemiologic studies have linked higher serum phosphorus concentrations to cardiovascular disease (CVD) events and mortality. This association has been identified in the general population and in those with chronic kidney disease (CKD). The risk of adverse outcomes appears to begin with phosphorus concentrations within the upper limit of the ...
Madhav C. Menon, Joachim H. Ix
openaire   +3 more sources

Hyperbranched Interpenetrating Hydrogen Bond Network (HIHBN) Proton Exchange Membrane for Fuel Cells Above 220 °C

open access: yesAdvanced Functional Materials, EarlyView.
A novel polymer electrolyte membrane with a hyperbranched interpenetrating hydrogen bond network structure is developed. The unique structure of the hyperbranched polymer contributes to a high glass transition temperature exceeding 400 °C, enabling its operation at elevated temperatures for fuel cell applications.
Lingping Zeng   +10 more
wiley   +1 more source

Rejuvenating liquid crystal elastomers for self-growth

open access: yesNature Communications
To date, only one polymer can self-grow to an extended length beyond its original size at room temperature without external stimuli or energy input.
Hongtu Xu   +8 more
doaj   +1 more source

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