Results 111 to 120 of about 1,533 (254)

PTQ10‐based organic photodetectors for visible light detection and their tolerance to impurities

open access: yesPolymer International, EarlyView.
PTQ10‐based organic photodetectors were found to be very sensitive to the presence of Pd(PPh3)4 catalyst traces, impacting the transport properties and light detection capacities. Abstract PTQ10 donor polymer has attracted a lot of interest in organic optoelectronics, particularly in the field of organic photovoltaics, owing to its ease of synthesis ...
Chloé Dindault   +9 more
wiley   +1 more source

The Effect of Isothermal Heat Treatment on the Microstructural Homogeneity and Mechanical Properties of 690 Alloy

open access: yesTeshugang
In view of the complex service environment of the electrode in the Joule furnace for vitrification, to ensure the microstructural uniformity and performance stability of the 690 alloy electrode material, the effects of isothermal heat treatment ...
Feng Han   +5 more
doaj  

Deep Proteomic Profiles of the Antarctic Diatom Fragilariopsis Cylindrus Under Varying Iron and Manganese Conditions

open access: yesPROTEOMICS, EarlyView.
ABSTRACT Fragilariopsis cylindrus is a key diatom in the Southern Ocean, where low iron and manganese availability constrain primary production and biogeochemical activity. The molecular mechanisms used by polar diatoms, including F. cylindrus, to cope with trace metal limitations remain largely unexplored.
Loay J. Jabre   +3 more
wiley   +1 more source

Unraveling Interband Hot‐Electron Transfer in Hydrogenated Au@Cu2O/TiO2 Heterostructure Nanocrystals for Enhanced Hydrogen Evolution

open access: yesSmall, EarlyView.
Hydrogenated Au@Cu2O/TiO2 nanocrystals with oxygen‐vacancy‐engineered heterostructures enable efficient hot‐electron transfer. A Z‐scheme heterojunction forms between TiO2 and Cu2O, suppressing electron‐hole recombination and leading to a hydrogen evolution rate of 9.3 mmol g−1 h−1, with AQYs of 2.5% at 650 nm and 0.8 % at 800 nm, extending activity ...
Tsai‐Te Wang   +9 more
wiley   +1 more source

Water Drops Sliding Over Arrays of Janus Micropillars With Hydrophilic Tops: A New Mechanism of Drop Charging

open access: yesSmall, EarlyView.
A water drop slides over a distance of a few centimeters across arrays whose top surfaces exhibit a contact angle below 10°. The arrays are fabricated with hydrophilic tops and hydrophobic sidewalls and substrate, forming Janus structures. As the drop moves, it generates a spontaneous electric charge and leaves behind tiny satellite droplets that ...
Fahimeh Darvish   +4 more
wiley   +1 more source

Pulse Electrodeposited NiFeCoMoW High‐Entropy Alloy Electrode for Efficient Alkaline Water Electrolysis

open access: yesSmall, EarlyView.
A pulse‐electrodeposited NiFeCoMoW high‐entropy alloy grown on copper foam forms a binder‐free, hierarchical electrode for alkaline water splitting. The bifunctional catalyst achieves low overpotentials for hydrogen and oxygen evolution and enables efficient two‐electrode electrolysis, delivering 1.52 V at 10 mA cm−2 and 1.83 V at 1000 mA cm−2.
Ziyao Chen   +15 more
wiley   +1 more source

Diamine Grafting of Pyrazole‐Based MOF‐303 for Diluted‐Source CO2 Capture

open access: yesSmall, EarlyView.
Vapor‐phase diffusion of ethylenediamine (EDA) into the pyrazole‐based MOF‐303 framework enables efficient amine grafting via pyrazole deprotonation and ion‐pair–stabilized hydrogen bonding with the pore walls. Spectroscopic analyses elucidate the interaction, while breakthrough experiments confirm the material's performance and cyclability.
Giuseppe Mastronardi   +9 more
wiley   +1 more source

Gallium Nitride‐Based Electrode Materials for Supercapacitors: From Wide Band Semiconductor to Energy Storage Platform

open access: yesSmall, EarlyView.
This review focuses on capability of Gallium Nitride (GaN)‐based supercapacitors, bordering the advancement from porous architecture to novel hybrid nanostructures. It systematically investigates synthesis approaches and charge storage mechanisms that generate remarkable energy densities and competent cyclic stability.
Farasat Haider   +7 more
wiley   +1 more source

Activatable smart contrast agents for photoacoustic imaging

open access: yesSmart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy