Materials Literature
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In this work, chemical properties, surface modification, and micro structures formation on ablated polyallyl di-glycol carbonate (CR-39) polymer by ArF laser irradiation (λ = 193 nm) at various fluences and pulse number were investigated. CR-39 samples have been irradiated with an ArF laser (193 nm) at a repetition ra…
Several applications utilizing either synchrotron or conventional light sources require fast and efficient pixelated detectors. In order to cover a wide range of experiments, this work investigates the possibility to use InGaAs/InAlAs quantum well devices as photon detectors for a broad range of energies. Owing to the…
Nanoscale Silver and Iron particles have biological applications because of their unique properties, as antimicrobial activity. The aim of the work was to test effects of Silver and Iron nanoparticles from Spinacia oleracea using suggested bacterial colonies. We performed biosafety and biocompatibility tests for Nanop…
A novel electrochemical sensor based on a hybrid of single-walled carbon nanotube and nanoparticle modified glassy carbon electrode was prepared by using mechanical attachment technique. The nanocomposite immobilized on the surface of a glassy carbon electrode offers substantial enhancement in the sensitivity and lowe…
An inkjet printing method for directional crystallization was proposed that employs difference in surface energy to induce film growth with higher crystallinity and orderliness. Inkjet printing of 6,13-bis(triisopropyl- silylethynyl) pentacene, a small-molecule semiconductor was performed as a single-line film with th…
Understanding the behavior of spins coupling across interfaces in the study of spin current generation and transport is a fundamental challenge that is important for spintronics applications. The transfer of spin angular momentum from a ferromagnet into an adjacent normal material as a consequence of the precession of…
ABSTRACT This study aims at determining the compatibility behavior of nanoparticles surface with fluorinated matrices to obtain a homogenous dispersion and better composites properties. First, modified silica nanoparticles by C6F13I and C6F13‐C2H4‐SH led to various fluorinated silica of different massic concentrations…
Diclofenac (DCF), one of the pharmaceutical and personal care products that has been widely detected in water, was selected as a model pollutant to evaluate the oxidation activity of α-MnO2 nanorods. The results showed that the heterogeneous oxidation process is highly pH dependent, with higher degradation efficiency…
The development of high-throughput and scalable techniques for patterning inorganic structures is useful for the improved function and efficiency of photonic and energy conversion devices. Here we demonstrate a facile and rapid electrochemical method for patterning periodic metallic and nonmetallic submicron structure…
A method of fabricating quantum-confined structures with single-walled carbon nanotubes (SWNTs) has been developed. Scanning tunneling spectroscopy revealed that a parabolic confinement potential appeared when collagen model peptides were attached to both ends of an individual SWNT via the formation of carboxylic anhy…
The electron spin dynamics under variable uniaxial strain is investigated in bulk cubic GaN by time-resolved magneto-optical Kerr-rotation spectroscopy. Spin relaxation is found to be approximately independent of the applied strain, in complete agreement with estimates for Dyakonov-Perel spin relaxation. Our findings…
ABSTRACT Poly(o‐anisidine) (POA) counter electrodes (CEs) were fabricated by potentiodynamic deposition and incorporated into platinum (Pt)‐free dye‐sensitized solar cells (DSSCs). A different sweep number had great impact on the morphology and electrocatalytic activity of the POA films. The POA film fabricated by 25…
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Shape-controlled synthesis of gold nanoparticles generally involves the use of surfactants to regulate the nucleation growth process and to obtain colloidally stable nanoparticles. The surfactants ...
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Indium sulfide thin films deposited via thermal evaporation from compound source material have been successfully utilized as a cadmium free buffer layer for Cu(In,Ga)Se2 based solar cells. However, high efficiencies are only reached after an additional annealing step. In this work, the annealing behavior of Cu(In,Ga)(…
A new electrochemical technique to detect hydrogen peroxide ( H 2 O 2) was developed. The Pt nanoparticles and Bi III were subsequently assembled on agmatine sulfate (AS) modified glassy carbon electrode (GCE) and the prepared GCE–AS- Pt – Bi III was characterized by scanning electron microscopy (SEM) with result show…
This study numerically investigates cyclic thermal shock behavior of ZrO2/Ti functionally graded thermal barrier coatings (FG TBCs) based on a nonlinear mean-field micromechanical approach, which takes into account the time-independent and dependent inelastic deformation, such as plasticity of metals, creep of metals…
Ferromagnetic resonance (FMR) experiment is considered for the case of a constant field applied in plane of a thin film. Role of temperature is investigated by replacing the Landau-Lifshitz-Gilbert equation by the Landau-Lifshitz-Bloch approach. Two important FMR parameters are evaluated: the resonance field and the l…
Die vorliegende Arbeit beschäftigt sich mit der Leistungssteigerung organischer Solarzellen durch Änderung der Geometrie an der Donor-Akzeptor Grenzfläche und dem Einstellen der elektronischen Eigenschaften von Grenzflächen durch molekulares p-Dotieren. Kristalline und gleichmäßige Nanosäulen aus dem organischen Halbl…