Materials Literature
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Many naturally occurring systems show us how multi-component supramolecular assemblies can generate useful functional behaviour. In this article the problems and limitations associated with achieving such behaviour in artificial multi-component assemblies is discussed, together with two examples of functions in artifi…
The thermal expansion coefficient, isothermal compressibility, and photoconductivity of the (TlGaSe 2 ) 0.9 (TlInS 2 ) 0.1 and (TlGaSe 2 ) 0.8 (TlInS 2 ) 0.2 solid solutions have been measured as a function of temperature. The measurement results have been used to evaluate the Debye characteristic temperature and band…
Abstract Thermionic electron emission (TEE) properties of as deposited, bare surface, in situ hydrogen‐terminated and in situ oxygen‐terminated polycrystalline diamond (Poly‐Di) films surfaces are reported. Continuous Poly‐Di films of a thickness of ∼200 nm grown on B‐doped Si substrates by hot‐filament chemical vapor…
Context. Variations in the 10 μm amorphous silicate band profile between different environments have been variously attributed to differences in composition, grain processing or macroscopic constitution (e.g. compact versus aggregate grains). However the relationship with mineralogical structure has remained poorly de…
The heat capacity of ScVO4 has been determined by adiabatic calorimetry at temperatures from 14.52 to 347.13 K, and smoothed heat capacity data have been used to evaluate its thermodynamic functions (entropy, enthalpy increment, and reduced Gibbs energy). At 298.15 K, the thermodynamic functions of scandium orthovanad…
Abstract A quantified stereological characterization approach is used to study the macrodispersion of polycarbonate/carbon nanotube nanocomposites with visually similar microstructures and differing material properties. Through the use of this stereological macrodispersion tool, observed agglomeration states are quant…
Recently developed catalytic processes with hydrophobic catalysts supported over styrene-divinylbenzene copolymer (SDB) were reviewed. Applications of such catalytic processes in commercial chemicals production and environmental management were examined in great detail. Based on this research work, the feasibility of…
TbNiAl${}_{4}$ exhibits incommensurate and commensurate magnetic ordering as a function of temperature. As a function of applied field it undergoes a series of magnetic phase transitions. The first of these transitions, into an intermediate spin arrangement, is the source of a large inverse magnetocaloric effect, an u…
The charge order in multiferroic LuFe${}_{2}$O${}_{4}$ has been investigated with resonant x-ray diffraction at the Fe K edge in the combined charge ordered and magnetic phase. The energy dependence of the charge order reflection ($\frac{1}{3}\frac{1}{3}\frac{7}{2}$) has been analyzed in detail to investigate the char…
Abstract The chemical termination of diamond has important consequences for its electrical and chemical properties. Despite the impressive potential for various scientific and technological applications, halogen termination of diamond is not fully understood. We find using first principle atomistic simulation that 100…
CO oxidations on the surface of tungsten nanoparticle W 10 and on W(111) surface were investigated by density functional theory (DFT) calculations. The molecular structures and surface–adsorbate interaction energies of CO and O 2 on the W 10 and W(111) surfaces were predicted. Three CO oxidation reactions of CO + O 2…
Host-guest interactions between polyglycerol dendrimers of generations 3 and 4 (PGD-G3 and G4) and 4-amino-3-hydroxynapthalene-2-sulphonic acid (AHSA) were investigated by fluorescence spectroscopy, isothermal titration calorimetry (ITC), and dynamic light scattering (DLS). PGD-G3 molecules were found to form an assoc…
We have studied the effect of external electric field on the transient response of the intrinsic photoconductivity of n -InSe single crystals with various initial 77-K dark resistivities (ρ d ). The results demonstrate that the behavior of the intrinsic photoconductivity of the crystals depends on both ρ d and applied…
Abstract Immobilisation of organic molecules on diamond surfaces is of great interest for biomedical applications. While H, F and Cl terminations, as a linker, have been studied extensively, the bromination of diamond is not fully understood. We have performed ab initio simulations to investigate the chemisorption of…
We have measured the Raman spectrum of ammonia borane at low temperature (T = 15 K) and across the orthorhombic-to-tetragonal phase transition at T = 225 K. A comprehensive study of the low frequency lattice modes using Raman spectroscopy has been carried out. Data analysis has been complemented by a density functiona…
Bi 3.15Nd 0.85Ti 3O 12 (BNT) thin films have been deposited onto Pt/Ti/SiO 2/Si substrates by chemical solution deposition. Pt top electrodes were then deposited to form the capacitor structure (Pt/BNT/Pt). The prepared capacitors were subjected to 1×1015 n/ cm2 neutron radiation. Loss in the remanent polarization and…
Abstract A novel way to fabricate flexible superhydrophobic PDMS surfaces using a microfabricated SU‐8 template on black silicon is demonstrated. The SU‐8 mold is fabricated on top of black silicon that has nanoscale features. The static water contact angle is generally 7° larger on PDMS surfaces created on black sili…
The processing and quantification of electron diffraction patterns have become vital in advanced electron crystallographic analysis work. A computer program, QPCED2.0 , has been developed for the handling of selected-area electron diffraction patterns for polycrystalline materials. QPCED2.0 can be used to enhance the…
This paper reports the growth and spectral properties of Er(3+)-doped and Er(3+)/Yb(3+)-codoped Li(3)Ba(2)La(3)(WO(4))(8) crystals. The Er(3+): Li(3)Ba(2)La(3)(WO(4))(8) crystal with dimensions of 56 mm × 28 mm × 9 mm and Er(3+)/Yb(3+): Li(3)Ba(2)La(3)(WO(4))(8) crystal with dimensions of 52 mm × 24 mm × 8 mm were obt…
Abstract In this study, the styrene–butadiene rubber (SBR)/ N , N ‐dimethyldodecylamine‐montmorillonite nanocomposite was prepared with a latex method by applying DDA to Na + ‐MMT as a modifier. The dispersion of silica and the dynamic viscoelastic properties of the SBR/silica (60 phr) compound were studied by replaci…