Results 91 to 100 of about 24,613 (311)
X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites
Advanced Functional Materials, EarlyView.We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim +21 more
wiley +1 more source
On the measurement of dielectric losses and surface conductivity of dielectrics in parallel plane test capacitors [PDF]
, 1964 Thin slabs of dielectric materials are often tested for their dielectric properties in plane parallel plate capacitors. When surface conductivity is present, as for instance in freshly split mica, losses not connected with the bulk of the material arise.
Frenkel, Lothar
core +1 more source
Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene
Advanced Functional Materials, EarlyView.Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus +8 more
wiley +1 more source
Measurement System for Lossy Capacitive Sensors: Application to Edible Oils Quality Assessment
Sensors, 2019 This paper aimed to develop a portable, low-cost, and easy-to-use measurement system for oil quality degradation assessment. The main two chemical parameters affected by frying are the total polar compounds (TPC) and free fatty acids.
Ahmed Fendri +4 more
doaj +1 more source
Lattice dynamics and phonon characteristics of complex perovskite microwave ceramics
IET Nanodielectrics, 2019 Complex perovskite microwave dielectric ceramics (MWDCs) of [inline-formula]-type (A = Ba, Sr,…; B′ = Mg, Zn,…; B″ = Nb, Ta), which exhibit excellent dielectric properties, have currently been widely used in microwave and millimetre wave devices ...
Feng Shi +7 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source
Extension to the effective-index method to include the calculation of losses in dielectric waveguides [PDF]
, 1997 A simple extension to the effective-index method (EIM) for the solution of lossy dielectric waveguides, whereby the attenuation constant can be calculated, is presented.
Collier, Richard J, Young, Paul R.
core +1 more source
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
Research of dielectric losses using FDS and PDC methods. [PDF]
, 2017 Each dielectric situated in electromagnetic field polarizes. When through it flows electric current, which dissipates a certain amount of electric power. This power turns into thermal energy.
Katauskis, Laurynas,
core
Dielectric properties of alumina-filled poly(ethylene-co-butyl acrylate) nanocomposites [PDF]
, 2010 The dielectric properties of poly (ethylene-co-butyl acrylate) with 13 wt% of butyl acrylate (EBA) filled with alumina nanoparticles (diameter < 50 nm) were studied as a function of particle coating and filler content (2, 6 and 12 wt%).
N Jäverberg +11 more
core +1 more source