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Effect of Cd2+ Concentration on the CdS Crystallites Prepared by Microwave Hydrothermal Process

Jian Feng Huang、Qin Feng Zhang、Bao Yun Hu 等 5 位作者2012-06-01Key engineering materials

Cadmium sulphide (CdS) crystallites were successfully prepared by a microwave hydrothermal (M–H) process using cadmium chloride (CdCl2·H2O) and sodium thiosulfate (Na2S2O3·5H2O) as source material with different Cd2+ concentration. The phase, composition, morphology and optical property of the obtained crystallites we…

Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

Hydrothermal Corrosion of Alumina Ceramics under Static and Quasi-Dynamic Conditions

Dagmar Galusková、Miroslav Hnatko、Dušan Galusek 等 4 位作者2012-06-01Key engineering materials

Corrosion resistance of solid state (SSS) and liquid phase sintered (LPS) alumina under hydrothermal conditions (subcritical water and sodium chloride solution at temperatures up to 290 °C, and pressures up to 7 MPa) was evaluated. The influence of sintering additives as well as the conditions of the test (temperature…

Concrete and Cement Materials ResearchAdvanced ceramic materials synthesisNuclear materials and radiation effects

Improvement of short wavelength optical response by applying multi SiNx:H layers on mono crystalline silicon solar cells

Kihyun Kim、Hoon Jung Oh、Jongbin Lim 等 8 位作者2012-06-01OpenAlex

Hydrogen containing silicon nitride film (SiNx:H) is used in most commercial crystalline silicon solar cells as anti-reflection coating and passivation layer. In this study, we have fabricated anti-reflection coating layers which are composed of multi SiNx:H films for mono crystalline silicon solar cell by Plasma Enha…

Thin-Film Transistor TechnologiesSilicon and Solar Cell TechnologiesSilicon Nanostructures and Photoluminescence

P‐73: Properties of Different Cold Cathode on the Efficiency in FEDs

Alireza Khorami、Shirin Ghanbari、Shamsedin Mohajerzadeh2012-06-01SID Symposium Digest of Technical Papers

Abstract The threshold voltage of FEDs is mainly determined by evaluating the material of the cathode and also its conduction coefficient. This study focuses on the properties of different cold cathode materials of nanotubes on the threshold and also cell efficiency. The results indicate that by utilizing Indium Oxide…

Carbon Nanotubes in CompositesGraphene research and applicationsNanotechnology research and applications

Preface: Phys. Status Solidi C 6/2012

Yannick J. Dappe、Pavel Jelı́nek、V. Cháb2012-06-01Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics

Abstract This issue of physica status solidi collects the Proceedings of the 13th International Conference on the Formation of Semiconductor Interfaces (ICFSI‐13) held in Prague between July 3 and 8, 2011. This series of conferences was organized by the Institute of Physics of the Academy of Sciences of the Czech Repu…

Quantum Dots Synthesis And Properties

Growth and characterization of quaternary (GaInAsP-GaAs) graded heterostructures

Monika Rathi、Pavel Dutta、S.P. Ahrenkie2012-06-01OpenAlex

The growth conditions of GaxIn1−xAsyP1−ylattice-matched to GaAs using MOCVD on (001) oriented substrates are analyzed. The epitaxial layer composition is varied from GaAs to lattice-matched Ga0.52In0.48P via quaternary grade. The layer quality is more sensitive to experimental variables as the composition approaches t…

Semiconductor Quantum Structures and DevicesZnO doping and propertiessolar cell performance optimization

Effect of mineral charge with high relative permittivity in impregnation varnish on the life expectancy of electrical machines

D. Cozonac、Stéphane Duchesne、G. Vélu2012-06-01OpenAlex

The aim of this paper, is to test new ways in order to improve the lifespan of electrical machines fed by PWM inverters. The tested method consists in increasing the turn-to-turn capacitance in order to reduce the electrical stress applied to the turn-to-turn insulation. The difficulty is to keep this stress under the…

High voltage insulation and dielectric phenomenaElectromagnetic Compatibility and Noise SuppressionElectrostatic Discharge in Electronics

Consideration into CIGRE round robin contamination test of polymer insulators

Ryosuke Matsuoka、Kenji Sakanishi2012-06-01OpenAlex

Hydrophobic polymer insulators show higher contamination flashover voltages compared with ceramic insulators, but standard artificial contamination test methods have not yet been established. Test methods used for ceramic insulators are now usually used also for polymer insulators, but due to different surface propert…

High voltage insulation and dielectric phenomenaThermal Analysis in Power TransmissionUnderground infrastructure and sustainability

SU‐E‐I‐19: Local Search Clustering Algorithm for DCE‐MRI Analysis

C Hui、Ponnada A. Narayana2012-06-01Medical Physics

PURPOSE: To develop a local search clustering algorithm for analyzing the dynamic contrasted enhanced (DCE)-MRI data for determining the vascular permeability. The clustered signal will have better contrast-to-noise ratio (CNR) and thus can improve the analysis. METHODS: In DCE-MRI, data often suffer from low CNR. The…

Advanced MRI Techniques and ApplicationsLanthanide and Transition Metal ComplexesMRI in cancer diagnosis

Monte Carlo Methods for Electron Transport: Scalability Study

Todor Gurov、Emanouil Atanassov、Aneta Karaivanova2012-06-01OpenAlex

The Monte Carlo methods (MCMs) are very convenient for parallel implementation because in many cases they can use powerful High performance computing (HPC) resources for achieving accurate results without losing their parallel efficiency. This advantage of MCMs is used by the scientists for solving large-scale mathema…

Advanced Chemical Physics StudiesElectron and X-Ray Spectroscopy TechniquesMathematical Approximation and Integration

A study of thermal, voltage, and photoinduced effects on the external quantum efficiency of CuInGaSe2 (CIGS) photovoltaic devices

Rebekah Feist、Michael E. Mills、R. Kirk Thompson 等 4 位作者2012-06-01OpenAlex

The purpose of this study was to assess the performance of CuInGaSe2(CIGS) solar cells ranging from 6.9 – 11.2% efficiency to identify means of improving device performance. One of the main drivers for this work was to take an independent look at elevated operating temperatures associated with BIPV products like Dow's…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications

Effect of Heat Treatment on Microstructures and Hardness of SiC/Steel Armor Composite

Jie Dong、Jie Pan、Miao Wang 等 6 位作者2012-06-01Materials science forum

The SiC reinforced ferrous based armor composites were treated with three heat treatments of annealing, isothermal quenching and annealing. The relationships between the treatment processing and the microstructures and hardness of the composite material were investigated. The results revealed that the heat treatment h…

Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesHigh-Velocity Impact and Material Behavior

The Effects of Different Slurry on the Joining Characteristics of SiC Green Body

Yan Li Huo、Hai Lin Liu、Chun Peng Wang 等 6 位作者2012-06-01Key engineering materials

Experiments were carried out to join reaction-bonded silicon carbide (RBSC) ceramic in green body. SiC green bodies were fabricated by gel-casting method. The slurries for joint were prepared by different grain size of SiC. The results indicate the solid loading and the grain size of SiC influence the strength of weld…

Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesMXene and MAX Phase Materials

Shapes of hydrophobic thick membranes

Trịnh Xuân Hoàng、Jayanth R. Banavar、Amos Maritan2012-06-01Europhysics Letters (EPL)

We introduce and study the behavior of a tethered membrane of non-zero thickness embedded in three dimensions subject to an effective self-attraction induced by hydrophobicity arising from the tendency to minimize the area exposed to a solvent.The phase behavior and the nature of the folded conformations are found to…

Liquid Crystal Research AdvancementsLipid Membrane Structure and BehaviorSurfactants and Colloidal Systems

Fabrication of Iron Carbide and Nitride Ceramics with Controlled Magnetic Properties by the Non-Oxide Sol-Gel Process

Xun Lao、Xiao Yan、Jiao Xie 等 4 位作者2012-06-01Key engineering materials

The carbodiimide-based non-oxide sol-gel process is a novel route to non-oxide nitride and carbide ceramics. This process has been applied to fabricate ternary or binary silicon based nitride and carbide ceramics. Based on this non-oxide sol-gel process, iron carbide and nitride have been fabricated by reaction of iro…

Advanced ceramic materials synthesisMetal and Thin Film MechanicsDiamond and Carbon-based Materials Research

Short Fatigue Crack Propagation Threshold of Railway LZ50 Axle Steel

Yong Zhao、Zhiwu He、Bing Yang2012-06-01Advanced materials research

Collective short fatigue behaviour nearby material micro-structural barrier threshold is experimentally observed for the smooth specimens of Chinese railway LZ50 axle steel. Effective micro-cracks which result in the specimens’ failure were initiated from the material ferrite particles on the surfaces of the specimens…

Fatigue and fracture mechanicsNumerical methods in engineeringMaterial Properties and Failure Mechanisms

Effect of Electron Beam Injection on the Removal of Metal Impurities in Silicon

Yi Tan、Da Yu Pang、Shu Ang Shi 等 6 位作者2012-06-01Advanced materials research

Electron beam injection(EBI) is a process of gathering the electrons in materials using electron beam(EB). The EBI technology is proposed for purification of silicon particles by removing metal impurities through high-temperature oxidation, EBI, and HF acid washing processes. Analysis of silicon particle morphology af…

Silicon and Solar Cell TechnologiesElectron and X-Ray Spectroscopy TechniquesIon-surface interactions and analysis

Pollution flashover performance of 220 kV glass insulator strings covered with incomplete spraying PRTV coatings

Chuyan Zhang、Shuwei Wan、Liming Wang 等 4 位作者2012-06-01OpenAlex

The PRTV coating materials had perfect performance in antipollution flashover for porcelain and glass insulators because of the surface hydrophobicity. Usually, the whole strings of insulators were coated with PRTV coatings in engineering application. In order to reduce the consumption of materials, a way of incomplet…

High voltage insulation and dielectric phenomenaThermal Analysis in Power Transmission

Illumination instability analysis of ZnO thin film transistors with HfO2 gate dielectrics

J. J. Siddiqui、Jamie Phillips、Kevin Leedy 等 4 位作者2012-06-01OpenAlex

ZnO thin film electronics have received much attention due to the relatively high electron mobility of ZnO thin films in comparison to amorphous silicon (a-Si) and organic thin films. There is significant interest in using ZnO thin film transistors (TFTs), or similar oxides such as InGaZnO and zinc tin oxide, to repla…

ZnO doping and propertiesSemiconductor materials and devicesThin-Film Transistor Technologies

Preparation of Pigmented Glass for Infiltration and Investigation of its Physical and Mechanical Properties

Huai Xiu Lu、Yuan Fu Yi、Bin Deng 等 8 位作者2012-06-01Key engineering materials

Aim To explore pigmented glass for infiltration and investigate its physical and mechanical properties. Methods The pigmented glass was prepared by melting glass components in an alumina crucible at 1400°C for 2h. The thermal properties were tested using a Setaram-TGDTA 92 analyzer; three point bending strength and fr…

Advanced ceramic materials synthesisGlass properties and applicationsRecycling and utilization of industrial and municipal waste in materials production