Results 91 to 100 of about 235,222 (294)

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Basic Examination of a Pilot Plant for Continuous Flow Microwave-Assisted Chemical Reaction Combined with Microreactors

open access: yesJournal of Thermal Science and Technology, 2011
A pilot plant for continuous flow microwave-assisted chemical reaction combined with microreactors was developed and water heating tests were conducted for evaluation of the developed plant. We first designed a continuous-flow microwave-assisted chemical
Mitsuhiro MATSUZAWA   +2 more
doaj   +1 more source

Absolute Negative Conductivity in Two-Dimensional Electron Systems Associated with Acoustic Scattering Stimulated by Microwave Radiation

open access: yes, 2003
We discuss the feasibility of absolute negative conductivity (ANC) in two-dimensional electron systems (2DES) stimulated by microwave radiation in transverse magnetic field.
A. C. Durst   +21 more
core   +1 more source

Coupling Nanostructured Plasmon–Strain Microwave Waveguide to Spin Defects in Hexagonal Boron Nitride for High‐Sensitivity Quantum Sensors

open access: yesAdvanced Materials, EarlyView.
Coupling of spin‐active VB−$V_B^ - $ defects in hBN with alumina‐coated gold plasmonic nanoresonators (PNRs), integrated into a microwave‐efficient waveguide, constitutes a plasmon‐strain architecture that enhances their photoluminescence and spin contrast. This platform enables a tenfold quantum yield improvement and achieves a DC magnetic sensitivity
Naveed Hussain   +12 more
wiley   +1 more source

Impact of microwave irradiation on the optical properties of copper zinc tin sulfide (Cu₂ZnSnS₄) nanoparticles

open access: yesNext Materials
The present work explores the optical properties of pure and microwave-irradiated CZTS nanoparticles focusing on absorption, photoluminescence (PL), and CIE chromaticity analyses.
R. Manigandan   +6 more
doaj   +1 more source

Quantum interface between photonic and superconducting qubits

open access: yes, 2017
We show that optically active coupled quantum dots embedded in a superconducting microwave cavity can be used to realize a fast quantum interface between photonic and transmon qubits.
Delteil, Aymeric   +5 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

open access: yesAdvanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha   +14 more
wiley   +1 more source

Microwave absorption properties of NiCoFe2O4-graphite embedded poly(o-phenetidine) nanocomposites

open access: yesAIP Advances, 2011
Poly(o-phenetidine) nanocomposites (PNG) with NiCoFe2O4 and exfoliated graphite have been synthesized via in-situ emulsion polymerization. Systematic investigations reveal that the NiCoFe2O4 nanoparticles (30-40 nm) in the poly(o-phenetidine) matrix have
Anil Ohlan   +4 more
doaj   +1 more source

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

open access: yesAdvanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally   +2 more
wiley   +1 more source

Supercurrent Spectroscopy of Andreev States

open access: yes, 2013
We measure the excitation spectrum of a superconducting atomic contact. In addition to the usual continuum above the superconducting gap, the single particle excitation spectrum contains discrete, spin-degenerate Andreev levels inside the gap ...
Bretheau, L.   +4 more
core   +4 more sources

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