Materials Literature
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Silicon heterojunction solar cells have record-high open-circuit voltages but suffer from reduced short-circuit currents due in large part to parasitic absorption in the amorphous silicon, transparent conductive oxide (TCO), and metal layers. We previously identified and quantified visible and ultraviolet parasitic ab…
Biological nitrogen fixation, the reduction of N(2) to two NH(3) molecules, supports more than half the human population. The predominant form of the enzyme nitrogenase, which catalyzes this reaction, comprises an electron-delivery Fe protein and a catalytic MoFe protein. Although nitrogenase has been studied extensiv…
This work reports a facile method for preparing the new photoactive In(2)O(3) films as well as their implementation in photoelectrochemical (PEC) application. We firstly investigated the relationship between oxygen vacancies (V(O)) and PEC performance and revealed a rule between them. We found that the optimized In(2)…
Three structurally identical polymers, except for the number of fluorine substitutions (0, 1, or 2) on the repeat unit (BnDT-DTBT), are investigated in detail, to further understand the impact of these fluorine atoms on open circuit voltage (V(oc)), short circuit current (J(sc)), and fill factor (FF) of related solar…
9.1.1.1.Gas-phase interaction 9.1.1.2.Interaction with the presence of water 9.1.2.Other amino acids 9.1.2.1.Alanine 9.1.2.2.Lysine and Glutamic Acid 9.1.3.General trends for amino acid adsorption on silica surfaces 9.1.4. Thermal-induced transformations of adsorbed amino acids on silica surfaces 9.2.Interaction with…
The different low index surface terminations of lithium tetraborate, Li(2)B(4)O(7), are dominated by electronic states that fall within the band gap of the projection of the bulk states. As a pyroelectric material, lithium tetraborate, Li(2)B(4)O(7), is a wide band gap dielectric, yet the (110) surface has a much smal…
Abstract The Jahn‐Teller distortion properties of Cu 0.47 Ni 0.48 Mn 0.55 [Fe(CN) 6 ] · 7.8H 2 O were studied by powder X‐ray diffraction measurements in the temperature region from 80 to 298 K. In the cooling process, a new peak labeled “a” near the (220) peak appears at 110 K. Conversely, as the sample is warmed to…
The automotive industry is currently seeking detailed information about various types of materials and their behavior under dynamic loading. Dynamic tensile testing of sheet steels is growing in importance. The experimental dynamic tensile technique depends on the strain rate. Each type oftest serves for a specific ra…
We present the nonpolarizing resonance properties of two types of one-dimensional (1D) guided-mode resonance (GMR) gratings consisting of the sinusoidal-profile grating substrate and the conformal dielectric thin films. The optimization with respect to the grating height and the phase of the conformal graded-index lay…
In this study, the polyimide (PI) alignment film whose surface contained fluorinated side chain was prepared by a new method. The fluorine compound, hexafluorobutyl acrylate (HFBA), was grafted into the surface of main-chained PI film as side chain via electron beam irradiation. The pretilt angle of liquid crystal (LC…
Switching speeds of nematic liquid crystal (LC) cells in the sub-millisecond range are observed for 3-D patterned self assembled monolayers (SAMs) on indium-tin-oxide (ITO) substrates. To achieve such fast LC response and relaxation times, thermal treatments of the patterned SAM-on-ITO are required, increasing the rel…
Purpose The purpose of this paper is to prepare and optimize the preparation conditions of some new hydrogels and in addition, evaluate their water absorbance at different mediums and their ability to remove ions from aqueous solutions. Design/methodology/approach Cellulose was extracted from depithed bagasse at two d…
Ab initio molecular dynamics simulations on liquid Sb have been carried out at five different temperatures from 913 K to 1193 K. We have investigated the temperature dependence of structure properties including structural factor S(Q), pair correlation function g(r), bond-angle distribution function g 3 (θ), cluster pr…
The flexural properties of poly-L-lactide (PLLA) and polycaprolactone (PCL) shape memory composites filled with nanometer calcium carbonate (nano-CaCO3) were determined at room temperature. The results showed that with the increase of the nano-CaCO3 weight fraction the flexural moduli and strength of PCL/nano-CaCO3 co…
This work is devoted to the decomposition of gaseous HCN by oxidation with air catalyzed by different nickel containing catalysts. The presence of metallic nickel does not cause the decomposition of cyanide at 400 °C, but NiO, electrochemical prepared nickel oxides Ni 2 O 3 · x H 2 O and (β,γ)-NiOOH exhibit distinctly…
When the molybdenum oxo(peroxo) acetylide complex [CpMo(O-O)(O)C≡CPh] is used as a catalyst for the oxidation of olefins, completely different product selectivity is obtained depending on the oxidant employed. When tert-butyl hydroperoxide (TBHP, 5.5 M) in dodecane is used as the oxidant for the oxidation of cyclohexe…
Two new symmetrical oxadiazole-based bent-core mesogens bearing cis and trans geometrical stereoisomer tails, geranyloxy and neryloxy, have been synthesised and the effect of the cis–trans geometric configuration of the terminal chains on the thermal profile and mesomorphic behaviour were investigated using differenti…
Abstract The one‐pot reaction of nickel(II) perchlorate salt with NaN 3 and the Schiff base ligand, 3‐(2‐hydroxybenzylideneamino) propane‐1, 2‐diol (H 3 L), derived from the condensation of 2‐hydroxybenzaldehyde and 3‐aminopropane‐1, 2‐diol, yields [Ni 4 (HL) 2 (H 2 L) 2 (N 3 ) 2 ] · CH 3 CN ( 1 ). Single crystal X‐ra…
Purpose – The purpose of this paper is to evaluate the water vapour permeability and mechanical properties of a solventless epoxy – nano‐platelet nano‐composite system compatibilised with an amino‐silane.
A new way of generating large plastic strain in a billet by splitting it plastically by a reciprocating punch is investigated. The concept of incremental angular splitting (I-AS) is explained by referring to the severe plastic deformation process of incremental equal channel angular pressing (I-ECAP). Results of labor…