Materials Literature
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Ab initio calculations of the solid-state diffusivity of solute atoms in bulk aluminium have previously been based on transition state theory (TST), employing transition state searches and systematic assessments of single jumps together with appropriate models of jump frequencies and correlation factors like the five-…
Solar cells are produced using solution processing that combine ZnO nanorods with the conjugated polymer poly(3-hexylthiophene) (P3HT). ZnO nanorods have an average length and diameter of 2.7 μm and 81 nm, and are well coated with P3HT. The solar cells have a power conversion efficiency of 1.24 %, which increases to 1…
This research relates to the preparation and characterization of surface grafted poly(N-isopropylacrylamide) and poly(carboxylic acid)-micron-size iron particles via atom transfer radical polymerization (ATRP). The surface grafted polymers-iron particles result in multifunctional materials which can be used in biomedi…
We report the design, fabrication, and preliminary characterization of a compact X-ray generator for improved X-ray absorption imaging that uses a nanostructured field emission cathode (FEC) as the electron source and a microstructured transmission anode as the X-ray generating element. FECs consume less power, respon…
Recently, Composite Sandwich Panel (CSP) technology considerably influenced the design and fabrication of high performance structures. Although using CSP increases the reliability of structure, the important concern is to understand the complex deformation and damage evolution process. This study is focused on the fle…
Rh films of 5-50 monolayers (ML) were grown on TiO2(110)-(1 × 1) surface by physical vapor deposition (PVD) at 300 K followed by annealing at max. 1050 K. In the coverage range of 5-15 ML, separated stripe-like Rh nanoparticles of approximately 30 × 150 nm lateral size and 10-20 layer thickness with a flat top (111) f…
LethaiaVolume 47, Issue 1 p. 1-3 Lethaia Focus Mystery of the graphoglyptids William Miller III, William Miller III wm1@humboldt.edu Geology Department, Humboldt State University, 1 Harpst St., Arcata, CA, USASearch for more papers by this author William Miller III, William Miller III wm1@humboldt.edu Geology Departme…
Attenuated total reflection infrared (ATR-IR) spectroscopy is used to study the adsorption of gold and silver nanoparticles and the layer-by-layer (LBL) growth of polyelectrolyte multilayers on a Ge ATR crystal. The Ge ATR crystal is first functionalized using positively charged polyelectrolyte poly(allylamine hydroch…
Recently, there has been a revival of interest in Spanish broom (Spartium junceum L.) as a possible source of fibers to be used in biocomposite materials. The aim of this work was to evaluate the role of two selected strains of Clostridium felsineum (NCIMB 10690 and NCIMB 9539) in the retting of Spanish broom vermenes…
Large molecules can be assembled from small components exclusively inside hollow nanocapsules with the help of entrapped catalysts. Phenyl isocyanates enter the capsules through nanopores in the capsule shells and form cyclic trimers that remain entrapped. No assembly happens outside the nanocapsules. Further function…
Abstract Charge‐transfer (CT) assemblies with mixed‐stack (MS) arrays of donor (D) and acceptor (A) molecules are important class of functional organic materials owing to their interesting optoelectronic properties. Construction of charge‐transfer nanostructures comprising cofacially stacked perylene/tetrathiafulvalen…
In the present work we studied the anodic behavior of polycrystalline copper (Cu 99.995 wt%) in sodium hydroxide solutions at potential range below the Cu 2 O formation potential (depending on sodium hydroxide concentration), as well as the effect of various additives to the alkaline solutions on copper anodic charact…
After the core-shell CoFe2O4@YVO4:Eu3+ composite synthesized through a facile sol-gel method was magnetized under an external magnetic field of 0.25 T for 4 h, an enhancement of ∼56% in photoluminescence intensity was observed. The remanent magnetization of the CoFe2O4 core increases the intensity of the excited charg…
Electrochemical interfaces are key to the direct conversion of fuels to electrical energy and lend energy converters like solid oxide fuel cells (SOFC) their functionality. Over extended operation at high temperatures, the microstructure of the underlying component materials in the cathodes, anodes and electrolytes ev…
The photophysical properties of several photosensitizers (PSs) included or grafted in silica monoliths were compared to their properties in solution. The effects of the solid support on their steady-state and transient absorption spectra, on their quantum yields of singlet oxygen ((1)O2) production, and on their abili…
A new ternary oxide Gd2CaZnO5 having interesting structural, mechanical, electronic and optical properties is synthesized and is studied in detail using density functional theory. The analysis revealed two polymorphs: orthorhombic and tetragonal; the orthorhombic phase was found to be the most stable structure under a…
Ceria and gadolinium (Gd) doped ceria nanowires have been synthesised by hydrothermal technique with mild reaction conditions. The structure and morphology of as-prepared nanowires were studied by X-ray diffraction and field emission scanning electron microscopy (FE-SEM) techniques. The FE-SEM analysis revealed the fo…
This study reports the preparation of all-solid-state micro-supercapacitors in planar interdigitated configuration based on MWCNTs via the electrophoretic deposition technique. The carbon nanotubes were functionalized with carboxylic groups via a HNO 3 concentric solution in order to prevent their agglomeration and ob…
We study the dynamical arrest in an adhesive hard-sphere colloidal system. We examine a micellar suspension of the Pluronic-L64 surfactant in the temperature (T) and volume fraction (φ) phase diagram. According to mode-coupling theory (MCT), this system is characterized by a cusp-like singularity and two glassy phases…
We report room-temperature observations of the quantum conductance corrections caused by the weak localization in graphene films synthesized using solid-state-source chemical vapor deposition. Both Raman spectroscopy and Hall measurements showed strong disorder in the samples with a low mobility of ∼430 cm2/V s. The e…