Results 111 to 120 of about 54,610 (362)

High‐Entropy Doped KTiOPO4‐Type Vanadium‐Based Fluorophosphate Cathodes for High‐Energy Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a high‐entropy doped NaV0.95 (Fe, Mn, Ni, Al, Ca)0.05PO4F cathode, which enables the whole utilization of Na ions, enhances the reaction kinetics without carbon coating, and realizes a solid‐solution reaction mechanism with a single‐crystal structure.
Yingkai Hua   +10 more
wiley   +1 more source

Advanced Surface Engineering and Passivation Strategies of Quantum Dots for Breaking Efficiency Barrier of Clean Energy Technologies: A Comprehensive Review

open access: yesAdvanced Functional Materials, EarlyView.
This review describes the different surface engineering strategies for quantum dots that addresses the challenges associated with surface defects, highlighting their role in enhancing the performance of solar energy conversion technologies. Abstract Colloidal quantum dots (QDs) have garnered significant attention for their unique potential in clean ...
Kokilavani S., Gurpreet Singh Selopal
wiley   +1 more source

Arrays and the octahedron recurrence

open access: yes, 2005
Recently, in papers by Knutson, Tao and Woodward, Henriques and Kamnitzer, Pak and Vallejo have been constructed several interesting bijections of associativity and commutativity. In the first two papers bijections relate special sets of discretely concave functions (hives) on triangular grids and the octahedron recurrence plays the key role for these ...
Danilov, V., Koshevoy, G.
openaire   +2 more sources

Dual Optical Hyperbolicity of PdCoO2 and PdCrO2 Delafossite Single Crystals

open access: yesAdvanced Functional Materials, EarlyView.
In this work, the hyperbolic response of PdCoO₂ and PdCrO₂ delafossites is investigated for the first time. They exhibit dual hyperbolic regimes, one localized around a phonon absorption in the mid‐infrared spectral region, and the other extending into the visible range.
Salvatore Macis   +14 more
wiley   +1 more source

Halide Perovskite Radiation Detectors: Conventional Imaging Applications and New Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
Organic–inorganic hybrid halide perovskite (OIHP) semiconductors, owing to their exceptional optoelectronic properties, are emerging as promising next‐generation integrated radiation detectors for applications in medical radiodiagnosis and healthcare monitoring.
Dou Zhao   +4 more
wiley   +1 more source

Coverage and Connectivity in Three-Dimensional Networks

open access: yes, 2006
Most wireless terrestrial networks are designed based on the assumption that the nodes are deployed on a two-dimensional (2D) plane. However, this 2D assumption is not valid in underwater, atmospheric, or space communications. In fact, recent interest in
Alam, S. M. Nazrul, Haas, Zygmunt J.
core   +1 more source

Coupled Ferroelectric–Photoelectrochemical in Water Reduction Over BiFeO3 Thin Film Heterostructure Modulated by Rare‐Earth Doping

open access: yesAdvanced Functional Materials, EarlyView.
Gd‐doped BFO (BGFO) exhibits a ∼2‐order reduction in leakage current owing to its lowest content of oxygen vacancies. This leads to a ∼2.5‐fold increase in remnant polarization. These improvements in BGFO effectively boost charge separation and transportation, resulting in the greatest incident photon‐to‐current efficiency of 12.9 ± 0.73% and a ∼1.5 ...
Ming‐Wei Chu   +7 more
wiley   +1 more source

Biogenic Synthesis of Antifungal Silver Nanoparticles Using Aqueous Stem Extract of Banana

open access: yesNano Biomedicine and Engineering, 2013
The present study reports the synthesis of silver nanoparticles (AgNPs) from silver precursor using banana stem extract (BSE) as a plant biomaterial. Biologically synthesized AgNPs were observed at 425 nm with particle size ranges from 75.50 nm to 1.22 ...
Jayabrata Das, Palaniyandi Velusamy
doaj   +1 more source

AI‐Assisted Design and Evaluation of SLM‐Ti64 Implants for Enhanced Bone Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
AI‐driven simulations of biological healing, combining biomechanical modeling and machine learning, enable personalized orthopedic treatments. By decoding healing patterns influenced by implants and patient‐specific factors, this approach advances fracture repair understanding, optimizes implant design, and supports precision medicine and sustainable ...
Muhammad Usama Zaheer   +3 more
wiley   +1 more source

EPR, UV-Visible, and Near-Infrared Spectroscopic Characterization of Dolomite

open access: yesAdvances in Condensed Matter Physics, 2008
Dolomite mineral samples having white and light green colors of Indian origin have been characterized by EPR, optical, and NIR spectroscopy. The optical spectrum exhibits a number of electronic bands due to presence of Fe(III) ions in the mineral.
S. Lakshmi Reddy   +5 more
doaj   +1 more source

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