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212 Result(s)
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Article
Increasing the Wear Resistance of Medium-Carbon Steel by Cathodic Electrolytic-Plasma Boron and Nitrogen
The possibility of increasing the wear resistance of medium-carbon steel using cathodic electrolytic-plasma boron-nitriding in an aqueous electrolyte of boric acid and ammonium chloride has been studied. The e...
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Article
Low Temperature Dopant Activation Using Variable Frequency Microwave Annealing
Variable frequency microwaves (VFM) and rapid thermal annealing (RTA) were used to activate ion implanted dopants and re-grow implant-damaged silicon. Four-point-probe measurements were used to determine the e...
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Article
Threshold Voltage Shift Variation of a-Si:H TFTs With Anneal Time
Hydrogenated amorphous silicon (a-Si:H) thin-film transistors (TFTs) are widely used in many areas and the most important application is in active matrix liquid crystal display. However, the instability of the...
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Article
Features of a Double Electric Layer on Carbon in a Broad Temperature Range. Measurements in Water
A double electric layer on carbon material has been studied for the first time in water in the temperature range from room temperature to 300°С. A decisive contribution of pseudocapacity, which is determined b...
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Article
Ferromagnetic signature in vanadium doped ZnO thin films grown by pulsed laser deposition
Dilute magnetic semiconductors are attractive due to their potential in spintronic devices. In this work, vanadium doped ZnO system has been studied to see its future as a dilute magnetic semiconductor. Vanadi...
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Article
Influence of oxide layer on carbon diffusion during anode plasma electrolytic carburizing
This study is devoted to the effect of the oxide layer formed upon anodic plasma-electrolytic carburization on the rate of carbon diffusion in low carbon steels upon application of an aqueous solution of ammon...
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Article
Enhanced thermopower of GaN nanowires with transitional metal impurities
The thermopower properties of GaN nanowires with transitional metal impurities are investigated in the framework of constrained spin density functional theory (DFT) calculations. The nanowires are connected to...
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Article
Effect of Silver thickness and Annealing on Optical and Electrical Properties of Nb2O5/Ag/Nb2O5 Multilayers as Transparent Composite Electrode on Flexible Substrate
Multilayer structures of Nb2O5/Ag/Nb2O5 have been deposited onto flexible substrates by sputtering at room temperature to develop indium free composite transparent conductive electrodes. The optical and electrica...
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Article
Low-Contact-Resistance Contacts to Graphene via Metal-Mediated Etching
The theoretically-predicted enhancement of metal-graphene contacts using the “end-contacted” configuration is studied. Graphene edges at the source/drain regions are created via a CMOS process compatible metal...
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Article
High Mobility IGZO/ITO Double-layered Transparent Composite Electrode: A Thermal Stability Study
The fabrication of a thin film optoelectronic device involves the exposure of the transparent conductive oxide (TCO) to a high process temperature. Indium gallium zinc oxide (InGaZnO4 or IGZO) is a well known TCO...
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Article
Optimization of IGZO/Cu/IGZO Multilayers as Transparent Composite Electrode on Flexible Substrate by Room-temperature Sputtering and Post-Deposition Anneals
Highly transparent composite electrodes made of multilayers of In- and Ga-doped ZnO and Cu (IGZO/Cu/IGZO) thin films (30/3-9/30 nm thick) are deposited onto flexible substrates at room temperature and by using...
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Article
Fundamental problems of lithium-ion rechargeable batteries
A brief review of the main scientific problems related to the improvement of lithium-ion rechargeable batteries and works carried out in the field at the Frumkin Institute of Physical Chemistry and Electrochem...
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Article
Diffuse Reflectance and Absorption Characteriation of a Plasmonic Back Reflector for Application in Thin Film Si Solar Cells
A plasmonic back reflector has been fabricated for light-trap** application in thin film Si photovoltaic devices. The back reflector comprises of a 2D array of self-organized Ag NPs separated from a planar A...
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Article
Dynamic Properties of Spectrally Selective Reactively Sputtered Metal Oxides
Thin films of Transition Metal Oxides (TMOs) were deposited by reactive sputtering of pure transition metal targets in Argon-Oxygen gas mixture at elevated substrate temperature for efficient energy consumptio...
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Article
Mechanical and Electro-Mechanical Stress Effects on Performance of Flexible IZO TFTs
This study reports the influence of electrical and mechanical stresses on indium zinc oxide (IZO) thin film transistors (TFTs).The deformation is introduced by mounting the samples on cylindrical structures of...
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A possible route to the quantification of piezoresponse force microscopy through correlation with electron backscatter diffraction
The functional properties of ferroelectric ceramic bulk or thin film materials are strongly influenced by their nano-structure, crystallographic orientation and structural geometry. In this paper, we present a...
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Article
Mixed phase silicon oxide layers for thin-film silicon solar cells
Lower absorption, lower refractive index and tunable resistance are three advantages of doped silicon oxide containing nanocrystalline silicon grains (nc-SiOx) compared to doped microcrystalline silicon, for the ...
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Article
Finite Element Studies of Homogeneous and Heterogeneous Dislocation Nucleation based on the Rice-Peierls Framework
The study of dislocation nucleation has gained increasing attentions recently primarily due to the advancement of small scale mechanical testing methods. Based on the classic Rice model of dislocation nucleati...
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Article
ZnO-based transparent anodes for organic light-emitting devices
ZnO/Au/ZnO (ZAZ) electrodes grown on flexible PEN substrates were evaluated as transparent electrodes for organic light-emitting devices (OLEDs). OLEDs fabricated with the ZAZ electrodes showed reduced leakage...
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Article
All-Carbon Composite for Photovoltaics
Graphitic nanomaterials such as graphene, carbon nanotubes (CNT), and C60 fullerenes are promising materials for energy applications because of their extraordinary electrical and optical properties. However, grap...