نتایج جستجو برای: annealing temperature

تعداد نتایج: 473032  

2007
Biswanath Mallik Santanu Karan Raja S. C. Mullick

Field Emission Scanning Electron Microscopy (FESEM) demonstrates spectacular changes in the morphology of thin films of copper (II) phthalocyanine (CuPc) deposited on gold coated quartz substrates at different substrate temperatures, and on indium tin oxide (ITO) substrates at room temperature followed by post deposition annealing at various temperatures under normal atmosphere. The nature of s...

2008
Mohammad Hossein Habibi Mohammad Khaledi Sardashti

For effectively fabricating nanocrystalline ZnO thin films by the sol-gel method, the relationships between the temperature of the heat treatment and the quality of the ZnO thin films was observed. The decomposition of the sol was analyzed by TG-DTA. The orientation of the c-axis of the ZnO thin film was identified by XRD. The morphology was observed and estimated by SEM. The experimental resul...

2001
Péter Stefán László Monostori

In this paper a combined use of reinforcement learning and simulated annealing is treated. Most of the simulated annealing methods suggest using heuristic temperature bounds as the basis of annealing. Here a theoretically established approach tailored to reinforcement learning following Softmax action selection policy will be shown. An application example of agent-based routing will also be ill...

2015
Iryna Dulina Tetyana Lobunets Leonid Klochkov Andrey Ragulya

Ni/NiO nanopowders have been prepared by using thermal decomposition of aqua solutions of nickel acetate ammine complexes in air at the annealing temperature range of 300°C to 500°C, time of decomposition from 30 to 180 min, and ammonia content in initial complex 3.6 to 9.55 mol/mol Ni(2+). Chemical composition of obtained powders has been characterized by chemical and thermal analysis. Phase a...

2006
L. Fu H. H. Tan I. McKerracher J. Wong-Leung C. Jagadish

In this work, rapid thermal annealing was performed on InGaAs/GaAs quantum dot infrared photodetectors QDIPs at different temperatures. The photoluminescence showed a blueshifted spectrum in comparison with the as-grown sample when the annealing temperature was higher than 700 °C, as a result of thermal interdiffusion of the quantum dots QDs . Correspondingly, the spectral response from the ann...

2002
A. J. Chiquito

The characteristics of multi-layered InAs/GaAs self assembled quantum dots (SAQDs) annealed after the growth were here studied using a combination of capacitance-voltage (C-V) measurements, Raman scattering and photoluminescence (PL) spectroscopy. The combination of the results obtained with the three techniques, gave evidences that the annealing at 500oC causes the sharpness of the SAQDs inter...

2008
B. Schmid A. Müller R. Claessen L. Molenkamp W. Drube

The effects of low-temperature annealing and oxidation of the dilute magnetic semiconductor Ga1−xMnxAs are studied by photoemission spectroscopy in the hard x-ray regime HAXPES , with special attention to the depth profile of both concentration and chemical state of manganese. Annealing of Ga1−xMnxAs in air at 190 °C for up to 150 h leads to an enrichment of manganese at the surface accompanied...

2016
Kostyantyn Kechedzhi Vadim N. Smelyanskiy

Real-life quantum computers are inevitably affected by intrinsic noise resulting in dissipative nonunitary dynamics realized by these devices. We consider an open-system quantum annealing algorithm optimized for such a realistic analog quantum device which takes advantage of noise-induced thermalization and relies on incoherent quantum tunneling at finite temperature. We theoretically analyze t...

2010
N. Dam TRAN Toru SASAKI Takashi KIKUCHI

We investigated one-step, rapidly cleaning, and annealing thin wire copper using plasma generated by Dielectric-Barrier Discharge (DBD) at atmospheric pressure in a coaxial cylindrical reactor. The thin copper wire cleaning and annealing processes strongly depend on the input power, the dimensions of the reactor, and the annealing duration. The minimum input power was calculated under stable an...

In this work, nanocrystalline Fe85Si10Ni5 soft magnetic powders were prepared by mechanical alloying and subsequent annealing to reduce the internal stresses and lattice strains. The powders were mixed with phenolic resin and warm pressed to produce nanostructured soft magnetic composites. The effect of annealing time and temperature on the crystalline structure, microstructure and magnetic pro...

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