Materials Literature
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CuO interlayers in the CuO/p-Si Schottky diodes were fabricated by using CBD and sol-gel methods. Deposited CuO layers were characterized by SEM and XRD techniques. From the SEM images, it was seen that the film grown by CBD method is denser than the film grown by sol-gel method. This result is compatible with XRD res…
We examine the dynamical evolution of a stable lamellar phase nucleating from a metastable cylinder phase in a diblock copolymer melt, through large-scale simulations of the time-dependent Landau–Brazovskii model. Ellipsoidal nuclei form, whose minor axis is parallel to the cylinder axis. We use our observation of bot…
A library of block copolymers was synthesized by varying the molecular weight of the poly(ε-caprolactone) (PCL)-diol soft segment (Mw = 850, 3050, 3700 or 7000), which was reacted with methylene diphenyl diisocyanate (MDI), 1,4-phenylene diisocyanate (PDI), 1,1′-methylenebis(4-isocyanatocyclohexane) (HMDI), or 2,4-tol…
We report on the synthesis of semiconductor PbS colloidal quantum dots with good size distribution through a facile and rapid approach using in situ generated H2S as the sulfur source. This novel approach is easily reproducible and less energy consuming. It also has the advantages of low-input and high-output. The gro…
Effective atomic numbers () of scientific samples (rare earth) were determined experimentally by scattering of 59.54 keV gamma photons from 5 Ci 241 Am annular radioactive source. The scattered gamma photons were collected by using a high-resolution HPGe semiconductor detector placed at to the incident beam. This expe…
Copolymerization of aniline with substituted anilines can synergistically combine high electrical conductivity with good solubility and functionality. Here, we report the synthesis of a variety of polyaniline-based copolymer nanofibers with uniform diameters. The relationship between the feed ratio and the final compo…
Peptides are excellent building blocks to form precise nanostructures by self-assembly. They can self-assemble into fibril nanostructures, thus recreating some of the architectural features of the natural extracellular matrix. Here, we used a microfluidic approach to drive the self-assembly of peptides of opposite cha…
The preparation and characterization of stable and non-aggregated colloidal suspensions of gold nanorod-molecular dye complexes which exhibit very bright surface-enhanced resonance Raman scattering (SERRS) signals is described. A systematic study was performed where both the localized surface plasmon resonance (LSPR)…
We report a novel route to prepare multiresponsive organogels through charge-driven assembly between a block ionomer and a diblock copolymer. The ionic complex aggregates to form spherical cores, which are connected by the middle block of the block ionomer to form gels. The organogels are responsive to acids, amines a…
In this work the development of gold catalysts, essentially based on γ-alumina with small superficial fraction of Ce-Fe mixed oxides as support for the low temperature CO oxidation is proposed. Characterization results obtained by means of TEM, OSC, XPS, UV-Vis spectroscopy and H2-TPR are employed to correlate the act…
High-quality zinc oxide nanorods were grown on various substrates using zinc nitrate (Zn(NO3)2) and hexamethylenetetramine ((CH2)6N4). The substrates greatly affect the hydrothermal growth of ZnO nanorods. Making the best use the substrate effect, we engineered substrates to make a single nanorod in each hole of 100 n…
A new H-abstracting agent, N-acetoxy-phthalimide (NAPI), was designed that cleaves mainly homolytically into acyloxyl and aminyl radicals at 190 °C. Melt PE grafting experiments confirmed the H-abstraction efficiency of NAPI. It was also shown that the grafting of maleic anhydride increased and at the same time undesi…
The pressure dependencies of the lattice parameters of the spin transition compound [Fe(PM-BiA)2(NCS)2] have been derived from neutron powder diffraction measurements at low temperature. The study of the compound [Fe(PM-BiA)2(NCS)2]-pI has first confirmed the atypical spin crossover behaviour under pressure of this co…
Nanotechnology has opened new opportunities in the field of medical sciences and pharmaceuticals. Commercially, nanoparticles are in great demand in electronics, catalysis, chemistry, energy, and medicine. Today in nanoparticle production green synthesis, using biological material including medicinal plants as a start…
We report single molecule fluorescence studies on nanoporous gold films. We observed dramatically enhanced intensities in individual immobilized fluorophores and reduced effective observation volumes in the nanopores. The enhanced localized plasmon field existing in the "nanovoid" regions can be visualized from the ov…
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A gasochromic Pt/V 2 O 5 film was fabricated by the sol-gel process and it exhibited excellent color change performance from yellow to gray/black upon exposure to hydrogen gas under ambient conditions. X-ray absorption spectroscopy was employed to study the unoccupied electronic states in detail and to explore the gas…
Epitaxial (KxNa1−x)NbO3 films with 3 µm in thickness were deposited at 240°C on (100)cSrRuO3//(100)SrTiO3 substrates by hydrothermal method. XRD patterns and Raman spectra were systematically changed with increasing x values. XRD patterns and Raman spectra was not dramatically changed by the annealing treatment at 600…
Gas barrier silica coatings were prepared from perhydropolysilazane (PHPS) by vacuum ultraviolet (VUV) irradiation under several irradiation conditions to investigate the relationship between their water vapor transmission rate (WVTR) and the irradiation conditions. PET substrates were coated with PHPS using its xylen…
The effect of particle type, size, content and manufacturing process on the creep behaviour of wood particles/High Density Polyethylene (HDPE) composites has been investigated. Short-term creep tests at different temperatures were carried out and modelled using the Bürger's model and the Findley power law. The creep o…