Results 141 to 150 of about 1,190,159 (371)

Performance Constraints of All‐Perovskite Tandem Solar Cells in Low‐Intensity, Low‐Temperature Environments

open access: yesAdvanced Materials, EarlyView.
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen   +10 more
wiley   +1 more source

Phase Transformation and Water Adsorption Behavior of As‐Deposited and Annealed Ru Metal Thin Films Prepared by Atomic Layer Deposition

open access: yesAdvanced Materials Interfaces, EarlyView.
The figure illustrates how thin Ru films deposited by atomic layer deposition transform into ruthenium oxide when heated between 400 and 600 °C. It shows the structural changes tracked using AFM, XPS (lab‐based and tender X‐ray), and XRD, highlighting how each technique probes different depths to reveal oxidation, surface evolution, and film ...
Swapnil Nalawade   +9 more
wiley   +1 more source

Chromosome-level genomes of two Bracteacoccaceae highlight adaptations to biocrusts

open access: yesNature Communications
Biological soil crusts (biocrusts) cover the majority of the world’s dryland ground and are a significant component of the vegetation-free surface of the planet.
Hongping Liang   +13 more
doaj   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

open access: yesAdvanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim   +4 more
wiley   +1 more source

Study of ephemeris accuracy of the minor planets [PDF]

open access: yes
The current state of minor planet ephemerides was assessed, and the means for providing and updating these emphemerides for use by both the mission planner and the astronomer were developed.
Brooks, D. R., Cunningham, L. E.
core   +1 more source

An Automated Occultation Network for Gravitational Mapping of the Trans-Neptunian Solar System

open access: yesThe Planetary Science Journal
We explore the potential of an array of ${ \mathcal O }(100)$ small fixed telescopes, aligned along a meridian and automated to measure millions of occultations of Gaia stars by minor planets, to constrain gravitational signatures from a “Planet X” mass ...
Daniel C. H. Gomes, Gary M. Bernstein
doaj   +1 more source

Laser Micromachining of Liquid Metal Patterns for Stretchable Electronic Circuits

open access: yesAdvanced Materials Technologies, EarlyView.
A cleanroom‐free fabrication strategy combines UV‐laser micromachining with a copper foil wetting layer to rapidly produce high resolution, liquid metal based stretchable electronic circuits on diverse substrates. The scalable, maskless process enables complex circuit designs (<$<$3 h, ∼$\sim$15/device) with excellent electrical stability under strain,
Merjen Palvanova   +3 more
wiley   +1 more source

Genome‐Wide by Lifetime Environment Interaction Studies of Brain Imaging Phenotypes

open access: yesAdvanced Science, EarlyView.
This study explores genome‐wide by lifetime environment interactions on brain imaging phenotypes. Gene‐environment interactions explain more phenotypic variance than main effects, pinpoint regulatory variants, and reveal exposure‐specific biological pathways.
Sijia Wang   +51 more
wiley   +1 more source

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