Results 81 to 90 of about 2,199 (282)
Advanced Materials, EarlyView.In this work, we introduce ancillary‐ligand‐mediated growth control of ultrathin CsPbI3 PeNPLs to achieve highly uniform thickness and reduced agglomeration. Strong ancillary‐ligand coordination to the perovskite surface regulates nucleation and improves surface passivation, enabling color‐pure emission and preferentially oriented superlattices.
Jongbeom Kim +23 more
wiley +1 more source
Discovery of the λ Bootis phenomenon in an early B-type star
Astronomy & AstrophysicsContext. Chemically peculiar A-type stars of the λ Boo class are characterised by depletions of refractory elements and normal volatile species. Their formation channel(s) have not yet been fully established, but they provide insight into star-disc ...
Olbermann J. +2 more
doaj +1 more source
Enshrouding & Star-planet Interactions in Close-orbiting Systems [PDF]
, 2020 The OU-SALT survey of the chromospheric activity of close-orbiting, transiting exoplanet hosts is unique. Emission flux in stellar Ca II H & K line cores is measured using the same telescope, spectrograph and calibration. I present homogeneous log(R'$_{HK}$) values for 104 bright southern hemisphere stars, ∼90% of which host hot Jupiters.
openaire +1 more source
Advanced Materials, EarlyView.A‐site high‐entropy engineering creates a robust Pr0.2Ba0.2La0.2Sr0.2Ca0.2FeO3‐δ (PBLSCF) perovskite‐based solid oxide fuel cell (SOFC) anode with in situ Fe nanoparticle exsolution to boost fuel oxidation and durability, achieving strong sulfur tolerance and coking resistance.
Lei Wu +10 more
wiley +1 more source
Cu‐Pd Dual Single Atoms Promoting Selective CO2 Photoreduction to C2 Products in Seawater
Advanced Materials, EarlyView.Cu and Pd dual single atoms anchored on TiO2 cooperatively enhance C─C coupling during CO2 photoreduction in seawater. Under xenon‐light irradiation and without a sacrificial reagent/alkaline trapping agent, the catalyst achieves highly selective acetic acid formation.
Elhussein M. Hashem +15 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood +7 more
wiley +1 more source
The Astrophysical Journal LettersCompact binaries with orbital periods shorter than about seven days show an absence of transiting planets, a feature known as the “circumbinary planet desert.” The physical mechanism behind this desert remains unclear.
Bin Liu, Dong Lai
doaj +1 more source
Advanced Materials Interfaces, EarlyView.Therapeutic nano‐drug delivery systems interact with cellular mitochondria in a multitude of ways. While the complexity of such interactions disrupts the mitochondrial electron transport chain and increases reactive oxygen species production, thereby contributing to nanoparticle toxicity, they also present unique theranostic opportunities in diseases ...
Sourav Bhattacharjee
wiley +1 more source
The Influence of General Relativity on the Spins of Celestial Bodies in Inclined Orbits
The Astrophysical JournalThrough the Rossiter–McLaughlin effect, several hot Jupiters have been found to exhibit spin–orbit misalignment and even retrograde orbits. The high obliquity observed in these planets can be attributed to two primary formation mechanisms, as summarized ...
Huan-Rong Yuan +6 more
doaj +1 more source
A predictive framework for realistic star-planet radio emission in compact systems
Astronomy & AstrophysicsContext. Radio emission from star-planet interactions (SPIs) beyond our Solar System has yet to be firmly detected, primarily due to weak signals, directional beaming effects, and low-frequency emissions blocked by Earth’s ionosphere.
Chebly J. J. +4 more
doaj +1 more source