Materials Literature
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We demonstrate a novel doping mechanism of silicon, namely n-type transfer doping by adsorbed organic cobaltocene (CoCp2*) molecules. The amount of transferred charge as a function of coverage is monitored by following the ensuing band bending via surface sensitive core-level photoelectron spectroscopy. The concomitan…
In this work, sugarcane bagasse, being an abundant and renewable resource, was used as a raw material to prepare sugarcane bagasse-g-poly(acrylic acid-co-acrylamide) (SB/P(AA-co-AM)) hydrogels. The hydrogels were prepared by free radical graft copolymerization of SB with AA and AM using N,N-methylene-bis-acrylamide (M…
We present measurements of the magnetic entropy landscape and Gr\"uneisen parameter of the ${\mathrm{Cu}}^{2+}$ complex $({\mathrm{C}}_{5}{\mathrm{H}}_{12}\mathrm{N}{)}_{2}\mathrm{Cu}{\mathrm{Cl}}_{4}$ in a magnetic field. Our thermodynamic measurements are in very good agreement with a theoretical description by a $S…
Recently, we proposed a new model for water [P. T. Kiss and A. Baranyai, J. Chem. Phys. 138, 204507 (2013)]. We presented a detailed description of the development of this classical, polarizable model, and a large number of calculated properties. The model provided excellent estimates for ambient liquid properties and…
Molecular dynamics simulations using classical force fields were carried out to study energetic and structural properties of rotationally disordered clay mineral-water-CO2 systems at pressure and temperature relevant to geological carbon storage. The simulations show that turbostratic stacking of hydrated Na- and Ca-m…
Al–Si base composites reinforced with different mixtures of Ni and nano-Al2O3 particles have been fabricated by squeeze casting and their metallurgical and mechanical characterization has been investigated. A mixture of Ni and nano-Al2O3 particles of different ratios was added to the melted Al–Si piston alloy at 700 °…
Abstract A Cs2.5H0.5PW12O40-supported platinum catalyst (Pt/CsPW) could act as an efficient heterogeneous catalyst for hydrodeoxygenation of various types of oxygen-containing compounds such as ketones, phenols, and ethers. The observed catalysis was truly heterogeneous, and the retrieved Pt/CsPW could be reused.
Three analytical methods, and finite-element analysis (FEA), are used to calculate no-load flux harmonics traveling with respect to the rotor of a surface permanent magnet machine. Rotor eddy-current losses caused by each harmonic are calculated analytically using a multilayer eddy-current model of the machine, in whi…
In this paper, bottom-gate thin-film transistors (TFTs) with zinc oxide (ZnO) channels were grown on Si substrates with an SiO2dielectric layer via the radio-frequency sputtering technique. The ZnO films were then subjected to 16 min of ultraviolet (UV)-ozone treatment, which resulted in fewer oxygen vacancies, enhanc…
We demonstrate all-optical magnetic switching (AOS) in an amorphous Tb30Fe70 thin film, triggered by a 5.1 MHz laser oscillator. The magnetic layer is grown on SiO2/Si substrate. An identical magnetic film deposited on a microscope glass slide reveals no AOS but solely thermally induced demagnetization. This effect is…
A high-performance flip-chip light-emitting diode (FCLED) with a Ni/Ag metallic film as high reflectivity mirror (92.67%) of p-type electrode was successfully fabricated. The effect of geometric electrode patterns on the blue InGaN/GaN LEDs was investigated and analyzed qualitatively its current spreading in the activ…
An accurate rotor position signal is quite necessary for high-performance control of switched reluctance motor (SRM). In general, the position signal faults may lead to abnormal operation, which deteriorates the reliability of the switched reluctance drive system. Thus, it is quite vital but still a challenge to devel…
PURPOSE: The use of stably integrated reporter gene imaging provides a manner to monitor the in vivo fate of engrafted cells over time in a non-invasive manner. Here, we optimized multimodal imaging (small-animal PET, Cerenkov luminescence imaging (CLI) and bioluminescence imaging (BLI)) of mesenchymal stem cells (MSC…
Most of the oxidizers available to be used in chemical propulsion applications are highly hazardous materials that are either toxic or explosive in nature. Among the short list of oxidizing agents, liquid oxygen and nitrous oxide stand out as the most practical propellants due to their wide availability, broad base of…
Low-temperature Cu/Cu direct bonding technology using formic acid vapor in situ treatment was developed. Effect of formic acid vapor treatment conditions on Cu surface and bonding was studied. Cu surface oxide was reduced using formic acid vapor in situ treatment at 150 and 200°C, respectively. With higher temperature…
Doxorubicin (DOX) is a potent cancer chemotherapeutic agent, but its clinical use is severely limited by potentially lethal cardiotoxicity. Delivery of DOX by particulate carriers can be an effective way to reduce its distribution in cardiac tissue. In the present study, we developed a self-assembled, tumor-microenvir…
Ultracapacitors are energy storage devices that can be connected in parallel with batteries to create a hybrid power system. This hybrid configuration provides a higher power density than a single battery and helps extend the life of the batteries. An important issue is the voltage regulation of a battery-supplied dc…
Gate-controlled tuning of the charge carrier density in graphene devices provides new opportunities to control the behavior of molecular adsorbates. We have used scanning tunneling microscopy (STM) and spectroscopy (STS) to show how the vibronic electronic levels of 1,3,5-tris(2,2-dicyanovinyl)benzene molecules adsorb…
Combining molecular alignment with selective ion transport can increase the freedom to design ion-conducting polymeric materials and thus enhance applications such as battery electrolytes, fuel cells, and water purification. Here we employ pulsed-field-gradient (PFG) NMR diffusometry, 2 H NMR spectroscopy, polarized o…
Elastic network models ENMs allow to analytically predict the equilibrium dynamics of proteins without the need of lengthy simulations and force fields, and they depend on a small number of parameters and choices. Despite they are valid only for small fluctuations from the mean native structure, it was observed that l…