Materials Literature
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Organic radicals are neutral, purely organic molecules exhibiting an intrinsic magnetic moment due to the presence of an unpaired electron in the molecule in its ground state. This property, added to the low spin-orbit coupling and weak hyperfine interactions, make neutral organic radicals good candidates for molecula…
The constructions of internal conductive network are dependent on microstructures of conductive fillers, determining various electrical performances of composites. Here, we present the advanced graphite nanoplatelet-carbon nanotube hybrids/polydimethylsilicone (GCHs/PDMS) composites with high piezo-resistive performan…
Dye-sensitized solar cells (DSSCs) are the most promising low-cost photovoltaic devices. Whereas, the absorption bands of most organic sensitizers, the most vital component in DSSCs, are limited to a relatively narrow visible range. To obtain efficient sensitizer, a series of D–A−π–A metal-free dyes have been designed…
Accurate modeling of foam rheology on the field scale requires detailed understanding of the correlation between the fundamental properties of foam and the scalable parameters of the porous medium. It has been experimentally observed that foam experiences an abrupt coalescence when the capillary pressure in the porous…
The displacement of micro-electro-mechanical-systems (MEMs) cantilevers is used to measure a variety of phe- nomena in devices ranging from force microscopes for single spin detection[1] to biochemical sensors[2] to un- cooled thermal imaging systems[3]. The displacement readout is often performed optically with segme…
Pseudomonas aeruginosa, an opportunistic pathogen frequently associated with nosocomial infections, is emerging as a serious threat due to its resistance to broad spectrum antimicrobials. The biofilm mode of growth confers resistance to antibiotics and novel anti-biofilm agents are urgently needed. Nanoparticle based…
We report on ferroelectric polarization behavior in CH3NH3PbI3 perovskite in the dark and under illumination. Perovskite crystals with three different sizes of 700, 400, and 100 nm were prepared for piezoresponse force microscopy (PFM) measurements. PFM results confirmed the formation of spontaneous polarization in CH…
The organic–inorganic hybrid perovskite CH3NH3PbI3 exhibits more structural disorder but more electronic order compared to inorganic CdTe. The grain boundaries of CH3NH3PbI3 could induce defect levels around the VBM and thus increase hole effective mass. Cl and O are found to be able to spontaneously segregate into th…
Rapid removal of noxious synthetic dyes from wastewater is of great concern in the scientific research field, this is due to the expansion of harmful effects of synthetic dyes traces in water streams on the environment and human health with the exponential rise in concentration of synthetic dye globally and demand in…
The discovery and utilization of metal-free organic emitters with thermally activated delayed fluorescence (TADF) is a huge breakthrough toward high-performance and low-cost organic light-emitting diodes. Time-dependent second-order perturbation theory including spin–orbit and nonadiabatic couplings, combined with tim…
Small-bandgap polymer solar cells (PSCs) with a thick bulk heterojunction film of 340 nm exhibit high power conversion efficiencies of 9.40% resulting from high short-circuit current density (JSC ) of 20.07 mA cm(-2) and fill factor of 0.70. This remarkable efficiency is attributed to maximized light absorption by the…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSupramolecular Catalysis in Metal–Ligand Cluster HostsCasey J. Brown†, F. Dean Toste*†, Robert G. Bergman*†‡, and Kenneth N. Raymond*†‡View Author Information† Department of Chemistry, University of California, Berkeley, California 94720-1460, United States‡ Division of Chemi…
Here we describe a new freshwater diatom species from the Cascade Mountain Range in Washington State, including observations of living cells and chloroplast structure. The species represents the fourth known extant species within the genus, as most species of Tetracyclus Ralfs are extinct. The new species can be disti…
This work is directed to assess iodine interactions with hardened cement paste (HCP) under highly alkaline conditions (pH > 12) with/without a reductant. For this purpose, a series of Kd (distribution coefficient) experiments using 127I as a tracer were performed. The Kd values of iodine were in the order of 172–1095…
We evaluate the effect of the Tris-dimethylaminoselenophosphoramide (SeAP)on the corrosion inhibition of modified-AISI 630 and AISI 316L stainless steel (SS) in 3 wt. % NaCl. The electrochemical behaviors of tested SS samples are investigated before and after adding the Seep into the chloride media by potentiodynamic…
A series of novel donor–acceptor type borondipyrromethene (BODIPY)-tethered triphenylamine conjugates (BDP4–8) containing one or two BODIPY cores attached to a triphenylamine scaffold at the 4- or 4,4′- positions were successfully synthesised via a mild and effective protocol. Their photophysical and electrochemical p…
Motivated by recent experiments on isovalent-doped 1111 iron-based superconductors ${\text{LaFeAs}}_{1\ensuremath{-}x}{\text{P}}_{x}{\text{O}}_{1\ensuremath{-}y}{\text{F}}_{y}$ and the theoretical study that followed, we investigate, within the five-orbital model, the correlation between spin fluctuations and the supe…
Fabric bagging is one of the important phenomena that determine the permanent 3D deformation of fabric under the applied loads. This study focused on dynamical bagging of knitted fabrics and factors affecting it to increase transformation of fabrics preform into various structural shapes through net-shape fabrications…
ABSTRACT This study focused on the fabrication and mechanical evaluation of nonwoven reinforced flexible polyurethane foam composites. Effects of perforation ratio, aperture size, and perforation depth on bursting and low‐velocity impact responses of perforated composite panels were investigated. The nonwoven fabric u…
An ab initio derived transferable polarizable force-field has been developed for Zinc sulphide (ZnS) nanoparticle (NP) and ZnS NP-PMMA nanocomposite. The structure and elastic constants of bulk ZnS using the new force-field are within a few percent of experimental observables. The new force-field show remarkable abili…