Materials Literature
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In the last few years, notable progress in understanding the growth mechanism of thin solar films deposited by numerous techniques have been made. Electrodeposition continues to be a complex deposition technique that can lead to low-quality material regions (crack) in the semiconductor material. Such cracks form porou…
In this study, we have analyzed the influence of different high-k (HK), interfacial layer (IL) and metal gate on the Al effect. We show that hydrogen diffusion during the BEOL process can suppress totally the Al effect on work function. Solutions to stabilize the Al effect with respect to hydrogen diffusion are propos…
Abstract This paper deals with influence of chrome addition and heat treatment on segregation of iron based phases in the secondary alloy AlSi7Mg0.3 microstructure by chrome and heat treatment. Iron is the most common and harmful impurity in aluminum casting alloys and has long been associated with an increase of cast…
Nickel oxide has been widely used as material for antiferromagnetic, electrochromic display and functional layer for chemical sensors. Nickel oxide thin films of various molarities were deposited using a simple nebulizer technique and the substrate temperature was fixed at 350C. The effect of the molarity of precursor…
As a circuit breaker ages it becomes more susceptible to SF6leaks. Retrofitting density monitoring equipment to existing circuit breakers allows for the early detection of a SF6leak before a low pressure alarm is raised. This report analyses different aspects of density monitoring which need to be considered to succes…
In the present study, carbon-coated titanium oxide (C-TiO2) was synthesized by hydrothermal method using dichloromethane as the novel low-cost carbon source. XRD patterns revealed that after purification method, only diffraction peaks of anatase TiO2 can be observed. On the other hand, the formation of carbon can be s…
Dry-type transformer is a high electric strength, high mechanical strength and high heat intensity transformer. With the acceleration of our city and countryside grid construction and the energy saving requirement in power industry, the application of dry-type transformer is expanding. Also, society proposes a higher…
We propose a minimal topological-spin qubit circuit to investigate the non-Abelian rotations within the degenerate ground-state manifold, as well as the topological phase transition and charge transfer. From a quantum dot, the state of the Majorana system can be read out. Along with the splitting of the degenerate gro…
In this work, we have used electrostatic engineering of the ALD dielectric/III-nitride interface to do lateral band engineering in a III-nitride HEMT. Due to challenges related to dopant activation and damage anneal, traditional ion implantation and diffusion techniques for lateral band engineering that are commonly u…
Copper is one of the most valuable metals in the daily production activities of human beings. Its consumption can indicate the changes in economic structure. The regularity of copper development in the U.S. has a very far-reaching significance as well as reference value to China. This paper is based on date of copper…
In this study work towards an InAs/AlAs0.56Sb0.44quantum dot (QD) prototype intermediate band solar cell(IBSC) grown on InP is presented. InAs QDs are suspended in an AlAs0.56Sb0.44/GaAs matrix in the unintentionally doped (uid) region of an In0.52Al0.48As solar cell are compared to a bulk In0.52Al0.48As solar cell. W…
We compare the performance prospects of three recently proposed and demonstrated transistors based on vertical and lateral graphene-based heterostructures, with the requirements of the International Technology Roadmap for Semiconductors. All devices provide large Ion/Ioff ratios, but only the lateral heterostructure f…
Near-monodisperse Pd and PdCo nanoclusters were synthesized by physical vapor deposition using a plasma-gas-condensation cluster deposition system and tested for catalyzing formic acid oxidation. Under the condition of high vacuum and inert gas, NCs with clean surface and uniform size were obtained. The cyclic voltamm…
In the automotive industry, hot stamping of ultra-high strength steel offers the possibility to reduce vehicle weight and enhance safety performance. However, the imperfect technology restricts its application. To investigate the hot stamping technology further, numerical simulation and forming experiment were made in…
Large-scale synthesis is very critical to promote research and applications of graphene. High quality samples can now be grown on various metal surfaces. In additional to experimental efforts to understand the underlying growth mechanisms, more and more atomic details about graphene growth are being revealed by multis…
Due to the excellent electrical properties, such as low dielectric loss, extremely low conductivity and high breakdown strength, polyimide film is widely applied as a kind of engineering plastic film and a type of insulating material in industry. However, with the disadvantage of organic polymer, its corona-resistance…
Current paper presents the results of investigating of nanostructured cathode arc vacuum evaporation coatings, based on (Ti, Hf, Nb, Si)N. Several methods of the structural and elemental analysis were used: proton microbeam, nano-and micro-electron beam, X-ray diraction analysis. To determine tribological properties (…
We present a surface passivation study of a B-diffused emitter and P-diffused back-surface field (BSF) of n-CZ Si substrates. The optimized passivation layers are subsequently incorporated into a 20%-efficient passivated emitter, rear totally-diffused (PERT) cell with Vocof 672 mV. On the P-diffused, concentrated KOH-…
Hydrogen, introduced into crystalline (c-) or amorphous (a-) silicon (Si), plays an important role in improving Si properties for photovoltaics application. Low temperature proton implantation in c-Si and a-Si or H-doping of Si films introduces metastable hydrogen in the bond-centered-position (BCH), which dissociates…
By means of atomistic Tight Binding simulations, we study heterostructures made of an armchair BN nanoribbon sided by two armchair graphene ribbons where a high band gap can be opened. We show that this band gap can be significantly suppressed by applying a relatively weak transverse electric field. This effect can be…