Materials Literature
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Solution-based Cu2ZnSn(S,Se)4(CZTSSe) thin film deposition routes focusing on chemistries with attractive scalability and handling characteristics, while delivering high efficiency devices are promising technologies for low-cost solar cells. In this paper we describe a new approach for the fabrication of CZTSSe thin f…
Sputter-deposited amorphous zinc-tin-silicon-oxide (ZTSO) is demonstrated to be a viable electronic passivation layer for bottom-gate thin-film transistors (TFTs) with amorphous zinc-tin-oxide and indium-gallium-zinc-oxide channels. ZTSO allows for successful passivation of these semiconductors without significant cha…
The International Conference on Anomalous Scattering held in Malente, Germany, in 1992 examined the broad issue of ‘dispersion or resonant scattering’ for X-rays. The significant aspects discussed at that time included: the evaluation of X-ray scattering factors, the role of local broken symmetries and the application…
With scaling down the size of the features in modern electronic devices, it becomes vital to control surface reactions at the interface for clean deposition on semiconductor substrates. Chemical functionalization of silicon surfaces provides a new approach for tuning the structure and properties of the interfaces form…
Conventional inductive voltage transformers (VT) are widely used in MV, HV and EHV networks to measure harmonic voltages. Accuracy of VTs at frequencies other than nominal frequency (50Hz/60Hz) are not defined by standards, but may significant influence the overall accuracy of harmonic measurements. Thus a reliable co…
Systematic study of the effect of isochronal annealing on the structure and magnetic properties of Cu-free HITPERM alloy (Fe40.5Co40.5Nb7B12) is described herein. Mössbauer spectroscopy (MS) and anomalous x-ray diffraction (XRD) measurement at Fe K-edge (7.112 keV) jointly provide clear evidence for the presence of at…
Natural ester fluids are biodegradable and fire-resistant liquid dielectrics which have been used in power transformers in recent years. This paper presents the results of an experiment to simulate typical thermal faults in power transformers. The temperatures of thermal faults ranges from 90°C to 800°C. Dissolved gas…
Abstract Our study of biological systems increasingly depends on our ability to dynamically and quantitatively measure the molecular processes with high sensitivity, speed, flexibility, multiplexity, throughput, and reproducibility, usually within the context of a complex biological and chemical mixture of tiny amount…
The application of Mo and W carbide (Mo 2 C and WC respectively) in the liquid phase oxidation of benzyl alcohol has been presented. Mo 2 C and WC are, indeed, considered among the most suitable candidates to replace noble metals for oxidation reactions because of their well recognized Pt- and Ru-like behavior, respec…
Abstract Catalyst recovery is one of the most important aspects that restrict the application of TiO2 photocatalyst. In order to reduce restrictions and improve the photocatalytic efficiency, a hierarchical porous TiO2 monolith (PTM) with well-defined macroporous and homogeneous mesoporous structure was prepared by us…
The use of composite insulators for overhead transmission lines has increased in the past decade. Various designs and models are now available for a wide range of voltages. The 3D Finite Element Analysis electric field distribution of such composite insulators has been of considerable interest due to its differences t…
Abstract A new kinetic code is presently being developed at IPP Garching to describe parallel (along magnetic field lines) plasma transport in the SOL and divertor of tokamaks. The development of the code is aimed at replacing parallel transport equations used in the present day fluid codes such as SOLPS(B2), EDGE2D,…
ISHS International Symposium on Advanced Technologies and Management Towards Sustainable Greenhouse Ecosystems: Greensys2011 HYDROLYZED PROTEIN BASED MATERIALS FOR BIODEGRADABLE SPRAY MULCHING COATINGS
Pulsed, green laser irradiation of uncoated p-type silicon leads to a significant reduction of the effective minority carrier lifetime. The reason for the lifetime drop lies in the introduction of recombination centres into the laser melted and recrystallized surface layer, leading to a low local minority carrier life…
A new method for flux weakening in surface permanent magnet (SPM) machines is proposed in this paper. This method is called winding switching technique and can reliably double the field weakening speed range of PM motors. This is significant because extending the constant power speed ratio (CPSR) of SPM machines is us…
We review three different kinds of experiments that emphasize the non-BCS, inhomogeneous aspects of superconductivity in the high Tc cuprates. The first is the existence of two different energy scales in the superconducting state, initially identified by a comparison between tunneling and Andreev–Saint–James spectrosc…
The conversion of steelmaking slag (a waste product of the steelmaking process) to calcium carbonate (CaCO(3)) was tested using hydrochloric acid, ammonium hydroxide and carbon dioxide via a pH-swing process. Batch reactors were used to assess the technical feasibility of calcium carbonate recovery and its use for pre…
Passive harmonic filters are commonly used as an effective solution in the power quality markets; however, the selection of capacitive component values in the multi-arm filter is usually a matter of trial and error. Someone can propose all capacitive components to be equal, but it has been observed that a better perfo…
According to the density functional theory we systematically study the electronic structure, the mechanical properties and the intrinsic hardness of Si 2 N 2 O polymorphs using the first-principles method. The elastic constants of four Si 2 N 2 O structures are obtained using the stress-strain method. The mechanical m…
The scaled particle theory is applied to a description of thermodynamic properties of one-dimensional hard rod fluid in disordered porous media. To this end, we extended the SPT2 approach, which had been developed previously. Analytical expressions are obtained for the chemical potential and pressure of a hard-rod flu…