نتایج جستجو برای: annealing temperature

تعداد نتایج: 473032  

2013
J. PANTOJA ENRÍQUEZ

Cadmium sulphide (CdS) thin films were deposited onto glass substrates by chemical bath deposition (CBD) from a bath containing cadmium acetate, ammonium acetate, thiourea and ammonium hydroxide. The CdS films were annealed in air at various temperatures (350, 400 and 450 °C) for 60 minutes, and times (5, 15, 30, 45 and 60 minutes) at constant temperature (400 °C) in order to investigate the in...

2003
J. LIU

A plan-view TEM study has been made of the distribution, geometry and the time-dependent annealing behavior of type II (end of range) dislocation loops introduced by 1 x 10’5/cm2 50 keV Si+ implantation into silicon. The size and density distributions of the loops have been quantitatively analyzed, and loop growth behavior has been compared with that predicted by a bulk-diffusion mechanism and ...

2017
Xing-Yao Feng Hong-Xia Liu Xing Wang Lu Zhao Chen-Xi Fei He-Lei Liu

The capacitance and leakage current properties of multilayer La2O3/Al2O3 dielectric stacks and LaAlO3 dielectric film are investigated in this paper. A clear promotion of capacitance properties is observed for multilayer La2O3/Al2O3 stacks after post-deposition annealing (PDA) at 800 °C compared with PDA at 600 °C, which indicated the recombination of defects and dangling bonds performs better ...

Journal: :ACS nano 2011
Jongweon Cho Li Gao Jifa Tian Helin Cao Wei Wu Qingkai Yu Esmeralda N Yitamben Brandon Fisher Jeffrey R Guest Yong P Chen Nathan P Guisinger

We have investigated the effects of thermal annealing on ex-situ chemically vapor deposited submonolayer graphene islands on polycrystalline Cu foil at the atomic-scale using ultrahigh vacuum scanning tunneling microscopy. Low-temperature annealed graphene islands on Cu foil (at ∼430 °C) exhibit predominantly striped Moiré patterns, indicating a relatively weak interaction between graphene and ...

2015
Marco A. Sousa Teresa C. Esteves Nabiha Ben Sedrine Joana Rodrigues Márcio B. Lourenço Andrés Redondo-Cubero Eduardo Alves Kevin P. O'Donnell Michal Bockowski Christian Wetzel Maria R. Correia Katharina Lorenz Teresa Monteiro

We studied the optical properties of metalorganic chemical vapour deposited (MOCVD) InGaN/GaN multiple quantum wells (MQW) subjected to nitrogen (N) implantation and post-growth annealing treatments. The optical characterization was carried out by means of temperature and excitation density-dependent steady state photoluminescence (PL) spectroscopy, supplemented by room temperature PL excitatio...

1994
C. D. Gelatt

39 { Introduce algorithms to keep errors within a constant factor of the temperature. Use x5 and x6 to help estimate the factor. { Increase the number of annealing steps performed at each temperature to compensate for errors. Use x6.3 to help estimate the number of steps. { Weigh the performance beneets of parallelism or sloppy computations against the increased annealing steps to obtain the sa...

2015
Sergio Bietti Luca Esposito Alexey Fedorov Andrea Ballabio Andrea Martinelli Stefano Sanguinetti

We report the study on formation and thermal annealing of InAs quantum dots grown by droplet epitaxy on GaAs (111)A surface. By following the changes in RHEED pattern, we found that InAs quantum dots arsenized at low temperature are lattice matched with GaAs substrate, becoming almost fully relaxed when substrate temperature is increased. Morphological characterizations performed by atomic forc...

2015
Wen Liu Kevin Cook John Canning

The regeneration of UV-written long period gratings (LPG) in boron-codoped germanosilicate "W" fibre is demonstrated and studied. They survive temperatures over 1000 °C. Compared with regenerated FBGs fabricated in the same type of fibre, the evolution curves of LPGs during regeneration and post-annealing reveal even more detail of glass relaxation. Piece-wise temperature dependence is observed...

2017
Sujuan Wu Pascal Brault Cong Wang Blandine Courtois

The influence of post deposition annealing (PDA) up to temperatures of TPDA=900°C on the morphology and agglomeration behavior of ambient temperature sputter deposited platinum onto anodic aluminum oxide templates is investigated. Both cluster agglomeration and diffusion processes occur on the surface and on the inner channel walls. When the annealing temperature is less than 400°C, particles a...

2016
Rebeca Ortega-Amaya Yasuhiro Matsumoto Andrés M Espinoza-Rivas Manuel A Pérez-Guzmán Mauricio Ortega-López

This work describes the formation of reduced graphene oxide-coated copper oxide and copper nanoparticles (rGO-Cu2ONPs, rGO-CuNPs) on the surface of a copper foil supporting graphene oxide (GO) at annealing temperatures of 200-1000 °C, under an Ar atmosphere. These hybrid nanostructures were developed from bare copper oxide nanoparticles which grew at an annealing temperature of 80 °C under nitr...

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