Materials Literature
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Abstract This study focuses on the electrochromic device (ECD) applications of poly(3,4‐ethylenedioxythiophene)/tungsten oxide (PEDOT/WO 3 ) hybrid nanofibers prepared via electrospinning method. Nanoporous WO 3 films were initially electrosynthesized on Pt sheet. The PEDOT layer was electropolymerized onto the entire…
We demonstrate that the phenomenon of current confinement along graphene $n\ensuremath{-}p$ junctions at high magnetic fields can be used to form an Aharonov-Bohm interferometer. The interference system exploits a closed $n\ensuremath{-}p$ junction that can be induced by a floating gate within the sample, and coupling…
Controlling the dissociation of single water molecule on an insulating surface plays a crucial role in many catalytic reactions. In this work, we have identified the enhanced chemical reactivity of ultrathin MgO(100) films deposited on Mo(100) substrate that causes water dissociation. We reveal that the ability to spl…
In this paper, the influence of Cr 2 O 3 additive ( y = 0~0.4 wt%) on fracture behaviors, ferroelastic deformation, and mechanical strengths of Bi 4 Ti 2.95 W 0.05 O 12.05 ( BTW ) Aurivillius ceramics was investigated. For these W/Cr co‐doped Bi 4 Ti 3 O 12 ceramics (BTW– y C), SEM analysis on their fractured surfaces…
The refractive index sensitivity of plasmonic nanoantennas depends on the plasmon field strength and its distribution (sensing volume). As a result, the sensitivity factors can be larger for hollow nanoparticles than for solid ones of comparable dimensions due to their larger sensing volume and the strong local electr…
The title compound derived from 3β-chlorocholest-5-ene has been synthesized and characterized successfully. A single crystal X-ray investigation of the compound revealed that the van der Waals interactions play a key role in the formation of the elementary structure. Hirshfeld surface analysis was used to visualize th…
Lead free piezoelectric materials are being intensively investigated in order to substitute lead based ones, commonly used in many different applications. Among the most promising lead-free materials are those with modified NaNbO3, such as (K, Na)NbO3 (KNN) and (Ba, Na)(Ti, Nb)O3 (BTNN) families. From a ceramic proces…
Rationalizing the effects of molecular substitution in π-conjugated organic materials arising from well-defined intermolecular interactions, which can influence the formation of predefined packing motifs and control the emergence of π–π stacking represents a current challenge in supramolecular design. Significant effo…
Single crystals of the multiferroic double-perovskite Pb2MnWO6 have been synthesized and their structural, thermal, magnetic and dielectric properties studied in detail. Pure perovskite-phase formation and stoichiometric chemical composition of the as-grown crystals are confirmed by X-ray single-crystal and powder dif…
Silver nanoparticles (AgNPs) were biosynthesized via a green route using ten different plants extracts (GNP1‐ Caryota urens , GNP2‐ Pongamia glabra , GNP3‐ Hamelia patens , GNP4‐ Thevetia peruviana , GNP5‐ Calendula officinalis , GNP6‐ Tectona grandis , GNP7‐ Ficus petiolaris , GNP8‐ Ficus busking , GNP9‐ Juniper comm…
Gold nanorods (GNRs) attract extensive attention in current diagnostic and therapeutic applications which require the synthesis of GNRs with high yields, adjustable aspect ratio, size monodispersity, and easy surface decoration. In the seed-mediated synthesis of GNRs using cetyl trimethyl ammonium bromide (CTAB) micel…
Temperature can be harnessed to engineer unique properties for materials useful in various contexts and has been shown to affect the layer-by-layer (LbL) assembly of polymer thin films and cause physical changes in preassembled polymer thin films. Herein we demonstrate that exposure to relatively low temperatures (≤ 1…
The effect of substituting Ag for In on the structural, magnetocaloric, and thermomagnetic properties of Ni50Mn35In15−xAgx (x = 0.1, 0.2, 0.5, and 1) Heusler alloys was studied. The magnitude of the magnetization change at the martensitic transition temperature (TM) decreased with increasing Ag concentration. Smaller…
We demonstrate four-terminal GeTe-based RF switches with independent thermal actuation (switching). These devices incorporate an AlN-based dielectric separating high-conductivity W micro-heaters from the RF signal path. With dc, pulsed, and RF testing, we show that an AlN barrier decreases the switch parasitic capacit…
Graphene oxide (GO) sheets can form liquid crystals (LCs) in their aqueous dispersions that are more viscous with a stronger LC feature. In this work we combine the viscous LC-GO solution with the blade-coating technique to make GO films, for constructing graphene-based supercapacitors in a scalable way. Reduced GO (r…
In this work, we find an analytical flat-membrane solution to the saddle point equations, derived by F. Guinea et al. [Phys. Rev. B 89, 125428 (2014)], for the case of a suspended graphene membrane of circular shape. We also find how different buckled membrane solutions bifurcate from the flat membrane at critical tem…
A molecular pentad comprised of a central multielectron donor and two flanking photosensitizer-acceptor moieties was prepared in order to explore the possibility of accumulating two positive charges at the central donor, using visible light as an energy input. Photoinduced charge accumulation in purely molecular syste…
A new facile approach for the fabrication of polymer‐Ag honeycomb film is reported. A polymer‐Ag + honeycomb thin film is obtained by casting a CHCl 3 solution of a functional graft copolymer on aqueous silver nitrate solution, leading to metal complexation induced phase separation at the air/water interface. The film…
The Eu(II) complex of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) tetra(glycinate) has a higher reduction potential than most Eu(II) chelates reported to date. The reduced Eu(II) form acts as an efficient water proton T1 relaxation reagent, while the Eu(III) form acts as a water-based chemical exch…
We introduce a simple and effective method to deposit a highly uniform and semitransparent MnO2 film without coffee-ring effect (CRE) by adding ethanol into MnO2 ink for transparent capacitive energy storage devices. By carefully controlling the amount of ethanol added in the MnO2 droplet, we could significantly reduc…