Materials Literature
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We present a theoretical study of excitons in GaN/Al x Ga 1-x N wurtzite (0001) quantum wells subjected to hydrostatic pressure. Our results show that the combined effect of pressure induced changes in band structure and piezoelectric field leads to reduction of the exciton binding energy. This subtle effect is descri…
To form SiCH films with a high carbon content using plasma-enhanced chemical vapor deposition (CVD), isobutyl trimethylsilane (iBTMS) and diisobutyl dimethylsilane (DiBDMS) were examined as precursors for a low- k cap layer and Cu diffusion barrier at the top of Cu lines. We elucidated the relationship between the str…
Transparent conducting oxide films of fluorine-doped SnO 2 (FTO) were deposited on glass substrates by spray pyrolysis in order to determine the effect of spray solution concentration. These films were prepared with different F-doping concentrations from 0 to 33 mol %. The films were all polycrystalline with tetragona…
We have investigated the interaction between cobalt–(6)pyrrole [Co–(6)Ppy] clusters and O 2 molecule, including the adsorption and dissociation of O 2 molecule using the density functional theory (DFT) calculations. We found that O 2 molecule is adsorbed on Co–(6)Ppy clusters with side-on configuration and the O–O bon…
The morphological and structural changes in Cu(In,Ga)Se 2 (CIGS) thin films during selenization using diethylselenide (DESe) are investigated. The surface morphology and extra phase existence of CIGS thin films strongly depend on the heating profile temperature and time of each step during selenization. Conventional h…
The role of impurity segregation into the Cu/cap interface and grain boundary is discussed in terms of resistivity and electromigration (EM) lifetime. A Co-based metal capping, a CuAl seed, and new liners (Ti, Zr, and Hf) are compared as technologies for EM lifetime improvement. The roles of impurity in grain growth a…
We introduce the high-throughput characterization of the crystallization temperature T x of thin film amorphous alloys integrated into a thin film library. This characterization is achieved using thermography. A new thin film library is designed and fabricated using photolithography and a lift-off process. Using a hom…
By means of analysis of electrochemical processes taking place during electroless electrodeposition have elaborate method for obtaining of well adherent smooth and stoichiometric single-phase CdTe films with cubic structure. Illumination of the growing layers has increased their thickness and improved film crystallini…
γ-In 2 Se 3 thin films were grown by the electrostatic spray pyrolysis deposition growth technique. We investigated the dependence of the crystalline quality and optical properties of the grown films on the growth conditions, such as growth temperatures and the molar ratios of source material Se/In in the precursor so…
About 30 percent of all overhead power distribution outages are caused by failing electrical equipment, e.g., surge arresters, cutouts, insulators, wires, grounding, etc. Failing equipment can be located and scheduled for removal prior to an outage. Replacing failing equipment reduces all reliability index figures.
This study was done to prepare thymopentin (TP5)-loaded poly (butyl cyanoacrylate) nanoparticles (TP5-PBCA-NPs) and evaluate thier efficacy for oral delivery. TP5-PBCA-NPs were prepared by emulsion polymerization, and the formulation was optimized based on Box-Behnken experimental design. The physico-chemical characte…
Cerebral mucormycosis without systemic foci of involvement is a rare life-threatening fungal infection that is reported to be more common in intravenous drug abusers. We present a case of isolated cerebral mucormycosis in a diabetic patient diagnosed through excision and biopsy and treated with combination of surgery…
Gold nanoparticles (AuNPs) have the unique property of plasmon resonance absorption (PRA). In this contribution, universal colorimetric detection of oxidants was achieved using cysteine induced AuNPs aggregation, which leads to a red-shift of in the PRA. The SH group of a cysteine molecule can be oxidized into a –S–S–…
ZnO (0001) layers on sapphire (0001) substrates were fabricated by means of high temperature high vacuum magnetron sputtering. The layers were deposited onto a thin MgO buffer and a low temperature ZnO nucleation layer, which is a technology commonly used in MBE ZnO growth. This paper reports on using this technology…
L-cystine is successfully used as a kind of sulfur source to grow CuInS2 nanocrystallines at 200° C for 18 h in a mixed solution made of 20 mL ethylenediamine and 20 mL distilled water. The diameter of the CuInS2 nanocrystallines ranges from 300 to 500 nm. The structure of nanocrystallines is determined to be of the t…
The non-planarity of a surface post electroplating process is usually dependent on variations of key layout characteristics including line width, line spacing and metal density. A test chip is designed and manufactured in a semiconductor foundry to test the layout dependency of the electroplating process. By checking…
β-Si 6− z Al z O z N 8− z ( z = 1, 2, and 3) powders were combustion synthesized under a low nitrogen pressure of 1 MPa. Si, Al and SiO 2 were used as the starting materials, and β-SiAlON ( z = 1) was added as diluent. The CSed powders then were sintered by spark plasma sintering at 1600 °C for 12 min. The products we…
Bismuth selenide (Bi2Se3) hexagonal nanosheet crystals with uniform size were successfully prepared via a solvothermal method at 160°C for 22 h using bismuth trichloride(BiCl3) and selenium powder(Se) as raw materials, sodium bisulfite(NaHSO3) as a reducing agent, diethylene glycol(DEG) as solvent, and ammonia as pH r…
Pulsed magnetic flux leakage (PMFL) technology shows potential advantages in the detection of corrosion, cracks and other defects of ferromagnetic plates or pipeline. A PMFL sensor with new structure is proposed based on the simulation for a variety of different structure sensors. It reduces the magnetic field compres…
We succeeded in the synthesis of 1,1′-bis{2-(5-arylthienyl)}ferrocenes as both cathodic and anodic multiple-redox active organic-organometallic hybrid molecules. Characterization of the molecules was performed by physical and spectroscopic means and X-ray crystallographic analyses. The electrochemical properties were…