Materials Literature
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We present an analytical calculation of the hydrodynamic interaction between two spherical particles near an elastic interface such as a cell membrane. The theory predicts the frequency dependent self- and pair-mobilities accounting for the finite particle size up to the 5th order in the ratio between particle diamete…
In this contribution, we report the facile preparation of cross-linked polymerizable ionic liquid (PIL)-based nanoparticles via thiol-ene photopolymerization in a miniemulsion. The synthesized PIL nanoparticles with a diameter of about 200 nm were fully characterized with regard to their chemical structures, morpholog…
A porous graphitic carbon nitride (g-C3 N4 )/graphene composite was prepared by a simple hydrothermal method and explored as the counter electrode of dye-sensitized solar cells (DSCs). The obtained g-C3 N4 /graphene composite was characterized by XRD, SEM, TEM, FTIR spectroscopy, and X-ray photoelectron spectroscopy.…
Abstract Humic acid (HA), a natural polymer and soil component, was explored as a photosensitizer in dye-sensitized solar cells (DSSCs). Photophysical and electrochemical properties show that HA covers a broad visible range of the electromagnetic spectrum and exhibits a quasi-reversible nature in cyclic voltammetry (C…
Four novel unsymmetrical heteroacenes containing five-membered heterocycles (OPyN, TPyN, TPyC, TPyO) have been synthesized and characterized. The formed molecules exhibited twisted structures, determined by crystal analysis and showed blue/green fluorescence in dichloromethane and in thin film. Compounds OPyN and TPyN…
Abstract The highly selective anti‐Markovnikov addition of thiols to unactivated alkenes and alkynes was demonstrated by using 3,4‐dimethyl‐5‐vinylthiazolium iodide or its polymer, poly(3,4‐dimethyl‐5‐vinylthiazolium) iodide, as a complementary catalyst. The reaction proceeded cleanly under base‐free conditions in air…
In this article, the nonlinear free vibration behavior of functionally graded (FG) spherical shell panel is examined under nonlinear temperature field. The functionally graded material (FGM) constituents are assumed to be the function of temperature and the thermal conductivity. The effective \hboxmaterial properties…
We demonstrate the generic value of a rigorous analysis of spike shapes observed in nanoimpact experiments. To this end, we investigate the electrochemical doping of insoluble nanoparticles impacting on a biased electrode surface and develop an analytical model of the doping process is developed that accounts for the…
The effects of hydrogen charging on the mechanical response of FCC Ni and Pd under nanoindentation are systematically investigated by molecular dynamics simulations. Simulations consider a random H distribution and time scales prevent any diffusion of H during the simulations. Hydrogen charging is then found to reduce…
To achieve uniform carbon coating on TiO2 nanomaterials, high temperature (>500 °C) annealing treatment is a necessity. However, the annealing treatment inevitably leads to the strong phase transformation from TiO2(B) with high lithium ion storage (LIS) capacity to anatase with low LIS one as well as the damage of nan…
The heats of formation and the normalized clustering energies (NCEs) for the group 4 and group 6 transition metal oxide (TMO) trimers and tetramers have been calculated by the Feller-Peterson-Dixon (FPD) method. The heats of formation predicted by the FPD method do not differ much from those previously derived from th…
Ta 3-x M x N y (M = Re, Fe, Co; x = 0, 0.25, 0.5, 1) materials with different microstructural features ( e.g. surface area) were successfully prepared using different synthesis techniques. The dependence of nitrogen transfer properties upon tantalum nitride microstructure and its chemical composition was evaluated usi…
Wearable electronics textiles are a new emerging phenomenon. These are textiles that incorporate electrical properties, for example heating, light emitting, sensing, etc., and are now being rapidly developed due to the creation of new types of fibers and fiber composites. The different ways that can be used to combine…
Novel organic pyridinium ylide sensitizers (NO109-111) consisting of various anchoring groups were synthesized and characterized for applications in dye sensitized solar cells. Compared with the pyridine-N-oxide dye (NO108), the ylide sensitizers with strong electron-withdrawing acceptors exhibited dominant ultraviole…
With the limited supply of fossil fuels and their adverse effect on the climate and the environment, it has become a global priority to seek alternate sources of energy that are clean, abundant, and sustainable. While sources such as solar, wind, and hydrogen can meet the world's energy demand, considerable challenges…
The three squaraines (SQs) here indicated as VG1-C8, VG10-C8, and VG11-C8 (Figure 1 ) have been synthesized and employed as dye sensitizers of p -type dye-sensitized solar cells ( p -DSCs) when screen-printed NiO is the nanoporous photocathode. The photoelectrochemical performance of the three differently sensitized p…
ABSTRACT A novel series of homo‐, bi‐, and mononuclear Ni(II)‐based catalysts (BNC n n = 1–4, MNC 4 ) were used for ethylene polymerization. The optimum conditions for the catalyst BNC 4 (the highest catalytic activity) was obtained at [Al]/[Ni]=2000/1, T p = 42 °C, and t p = 20 min that was 1073 g PE/mmol Ni h. In th…
ADVERTISEMENT RETURN TO ISSUECommunicationNEXTLow Cost and Solution Processed Interfacial Layer Based on Poly(2-ethyl-2-oxazoline) Nanodots for Inverted Perovskite Solar CellsWei Chen, Yudong Zhu, Yizhe Yu, Leiming Xu, Guining Zhang, and Zhubing He*View Author Information Department of Materials Science and Engineerin…
Electronic applications that offer flexibility and stretchability have attracted increasing interest over the past few years because of their potential applications in, for example, electronic skin and bio‐inspired devices, where electronics based on current wafer‐based technology are not suitable. Metal‐oxide‐based b…
Femtosecond broadband photoluminescence studies are presented for Ir(ppy) 3 ( Ir1 ), Ir(ppy) 2 (pic) ( Ir2 ), Ir(ppy) 2 (bpy)(PF 6 ) ( Ir3 ), Ir(ppz) 3 ( Ir4 ), and Ir(ppz) 2 dipy ( Ir5 ) (where ppy = 2-phenylpyridine, pic = picolinate, bpy = 2,2′-bipyridine, ppz = 1-phenylpyrazole, and dipy = 5-phenyldipyrrinato) in…