Literatura científica selecionada sobre o tema "Déposition de couches atomiques"
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Artigos de revistas sobre o assunto "Déposition de couches atomiques"
Azzoug, Asma. "Elaboration et caractérisation des couches minces d'oxyde de cuivre : Application à la photo-dégradation de Méthyle Orange". Journal of Physical & Chemical Research 1, n.º 1 (1 de junho de 2022): 57–71. http://dx.doi.org/10.58452/jpcr.v1i1.32.
Texto completo da fonteAbderrahmane, Abdelkader, Messaoud Kermiche, Samah Adjmi e Chewki Zegadi. "Réalisation d’un appareil de SILAR pour la déposition des nano couches des matériaux chalcogénures pour les cellules solaires". Journal of Renewable Energies 19, n.º 4 (17 de outubro de 2023): 567–74. http://dx.doi.org/10.54966/jreen.v19i4.595.
Texto completo da fonteDufaud, Olivier, e Serge Corbel. "Dispositif de déposition de couches de suspensions de céramiques appliqué à la stéréolithographie". Canadian Journal of Chemical Engineering 82, n.º 5 (19 de maio de 2008): 986–93. http://dx.doi.org/10.1002/cjce.5450820514.
Texto completo da fonteKhelifi, Samira, e Abderrahmane Belghachi. "Le Rôle de la Couche Fenêtre dans les Performances d’une Cellule Solaire GaAs." Journal of Renewable Energies 7, n.º 1 (30 de junho de 2004): 13–21. http://dx.doi.org/10.54966/jreen.v7i1.861.
Texto completo da fonteMantoux, A., J. C. Badot, N. Baffier, J. Farcy, J. P. Pereira-Ramos, D. Lincot e H. Groult. "Propriétés structurales et électrochimiques de couches minces de V2O5élaborées par dépôt chimique de couches atomiques en phase vapeur (ALCVD)". Journal de Physique IV (Proceedings) 12, n.º 2 (abril de 2002): 111–19. http://dx.doi.org/10.1051/jp420020018.
Texto completo da fonteLaouamri, Hind, Mostafa Kolli e Nourredine Bouaouadja. "Correction des Défauts de Sablage D’un Verre par Déposition de Couches Minces de Silice et de PVB". حوليات العلوم و التكنولوجيا 5, n.º 2 (outubro de 2013): 136–42. http://dx.doi.org/10.12816/0010609.
Texto completo da fonteKhelfaoui, Fethi, e Mohammed Azzaoui. "Etude des Spectres D’émission D’ions D’argon lors de Déposition Sur Couches Minces dans un Pulvérisateur Cathodique Magnétron". حوليات العلوم و التكنولوجيا 5, n.º 2 (outubro de 2013): 204–8. http://dx.doi.org/10.12816/0010617.
Texto completo da fonteHafidi, K., M. Azizan, Y. Ijdiyaou e E. L. Ameziane. "Déposition par Pulvé Risation Cathodique Radio Fréquence et Caracté Risation Électronique, Structurale et Optique de Couches Minces du Dioxyde de Titane". Active and Passive Electronic Components 27, n.º 3 (2004): 169–81. http://dx.doi.org/10.1080/08827510310001616885.
Texto completo da fonteAdnane, Mohamed, Toufik Sahraoui, Abdelkader Abderrahmane, Saad Hamzaoui e Denis Chaumont. "Elaboration et caractérisation des matériaux binaires CuxS et Ag2S élaborés par la technique SILAR pour couche tampon de cellule solaire à base de couche absorbante CIS". Journal of Renewable Energies 13, n.º 4 (25 de outubro de 2023). http://dx.doi.org/10.54966/jreen.v13i4.228.
Texto completo da fonteTeses / dissertações sobre o assunto "Déposition de couches atomiques"
Valero, Anthony. "Fonctionnalisation d’électrodes de silicium nanostructuré par couches nanométriques de diélectrique par ALD : une protection active versatile pour des micro-supercondensateurs ultra-stables en milieux aqueux". Thesis, Université Grenoble Alpes, 2020. https://thares.univ-grenoble-alpes.fr/2020GREAI006.pdf.
Texto completo da fonteIn recent years, significant attention has been paid to the development of micro-devices as innovative energy storage solutions. For instance micro-sensor networks such as sensors actuators or implantable medical devices require power densities and cyclability that are several orders of magnitude higher than those of conventional Lithium-Ion batteries. For such applications, Microsupercapacitors (MSCs), a developing novel class of micro/nanoscale power source are rising alternatives, and their integration “on-chip” could allow significant innovations to emerge.1 Therefore, a great deal of attention has been focused on MSCs, for which large series of nanostructured active materials have been developed. Following this trend, we have demonstrated through comprehensive investigations the interest of silicon nanostructures grown by Chemical Vapor Deposition (CVD) as electrodes materials for MSCs using ionic liquid electrolytes. The fine morphological tuning of the nanostructure allowed by the bottom-up approach enables specific designs of electrode architectures, with a considerable leeway compared to other techniques. Such latitude allows optimising porosity and ionic and electronic pathways while keeping robust mechanical and thermal performances, depending on the target application. Nanostructures such as SiNWs and SiNTrs have displayed excellent electrochemical performances being stable over more than 1 million cycles of galvanostatic charge/discharge under a 4 V wide electrochemical windows in EMITFSI ionic liquid, with large power densities of 10 mW.cm-2 and good capacitance values of 0.5 mF.cm-2 at high current density of 0.5 mA.cm-2. However a major silicon weakness which was still hindering its use with aqueous electrolytes is the native uncontrolled growth of silica when subjected to ambient atmosphere. In this thesis we have developed and investigated a highly conformal passivation coating of a nanometric high-k dielectric layer of Al2O3 based on the rising Atomic Layer Deposition (ALD) technique. ALD has proven to allow a nanometric thickness control of the deposited layer while being highly conformal and covering. Moreover, as discusses in this manuscript the protective alumina layer enables the use of aqueous electrolytes for nanostructured Si based MSCs, which significantly increases the specific power of the devices up to 200 mW.cm-2 at 0.5 mA.cm-2 while keeping the capacitance performances at 0.5 mF.cm-2. Furthermore the system is remarkably able to retain 99% of its initial capacitance after 2 billion galvanostatic charge/discharge cycles at high current density of 0.5 mA.cm-2 in an aqueous electrolyte of Na2SO4. In this manuscript we have also performed a comprehensive electrical study of the alumina/silicon interface which demonstrates that such nanometric layer of dielectric is not fully resistive as assumed by most the electrochemist but rather able to conduct electricity through tunnelling effect dependant on the thickness. Eventually we have used this conductive and protective layer to strengthen a pseudocapacitive conductive polymer which is electrochemically active in aqueous electrolytes. A promising composite material is described and realised by a simple drop-cast method of a PEDOT-PSS film onto silicon nanowires. The device exhibited promising performances with a specific energy of 2 Wh.kg-1 and a power density of 300 W.kg-1 at a current density of 1 A.g-1. The MSCs was able to retain 80% its initial capacitance after 500,000 galvanostatic charge-discharge cycles at 0.5 A.g-1. The last part of the thesis describes the collaboration sets with a Norvegian company, ELKEM SILICON MATERIALS, which has lead to the rethinking of our silicon nanostructure growing process and the large increase of the production capacity
Ihara, Kou. "Οptimizing οf metal-insulatοr-metal capacitοrs perfοrmances by atοmic layer depοsitiοn : advancing prοductiοn efficiency and thrοughput". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMC218.
Texto completo da fonteAs semiconductor technology progresses, the need to overcome the limitations of shrinking device sizes is considered paramount. While Moore’s law has guided this evolution over the past five decades, the constraints of the active components are now obvious as manufacturing processes approach the atomic scale. More Than Moore's approach has emerged to address this, emphasizing the integration and miniaturization of heterogeneous chips to enable the stacking of diverse system functionalities. However, integrating passive components poses significant challenges due to their production via disparate processes. Addressing this challenge, Murata Integrated Passive Solutions invented the Passive Integrated Connecting Substrate (PICS) technology, facilitating the integration of silicon-based passive components into 3D structures. The latest iteration, PICS5, leverages an anodic aluminum oxide template and Metal-Insulator-Metal stack deposition via atomic layer deposition. This thesis contributed to the ongoing refinement of PICS5 technology by enhancing the properties of 3D capacitors and exploring the potential of high-k dielectric materials (Nb2O5). This research aimed to optimize component performance and anticipate future challenges in semiconductor innovation by clarifying the nuances of thin film deposition processes and ALD equipment conditions
Antoun, Gaëlle. "Cryo-gravure de couches atomiques par plasma : mécanismes et procédés". Electronic Thesis or Diss., Orléans, 2020. http://www.theses.fr/2020ORLE3067.
Texto completo da fonteThis PhD was conducted at GREMI in collaboration with Tokyo Electron Ltd, that has also financed the project. The purpose of this study was to develop a new Atomic Layer Etching (ALE) process at cryogenic temperature for silicon-based materials etching.Cryo-ALE consists on etching one to few monolayers after decreasing the substrate temperature. The first step of this process is the injection of liquid nitrogen to cool the chuck and cool the wafer by injecting He at its backside to ensure the thermal conductivity. Once the wafer temperature has been stabilized, reactive species are injected in gas phase in order to physisorb on the cooled surfaces. As the reactor walls are kept at room temperature, no adsorption occurs on it. The third step is to pump or purge the chamber by Argon in order to remove all the surplus of the reactive gas that did not physisorb. An argon plasma with bias is then started in order to bring enough energy by the ions to make modify the surface of the sample and etch one to few monolayers of the substrate. This step is self-limited, as once all the modified surface is removed, no more etching occurs.To conduct this study, an ICP cryogenic research reactor has been used. On it an in-situ spectroscopic ellipsometer was coupled to monitor the thickness variation in real time, and an Electrostatic Quadrupole Mass Spectrometer was used to analyze the species present in reactor chamber during the process and know more about the mechanisms.Quasi in-situ X-ray Photoelectron Spectroscopy has also been performed at the laboratory IMN for surface analysis at low temperature.The main advantage of this process based on the physisorption of reactive species, is that it enables to limit reactor walls contamination and hence prevent process drifts.In parallel, a second process was developed at cryogenic temperatures but where the modification step was performed in plasma phase. This second process enabled to achieve high selectivity between Si3N4 over Si and SiO2
Mantoux, Arnaud. "Synthèse par dépôt de couches atomiques et caractérisations de couches minces d'oxyde de vanadium applications aux accumulateurs au lithium". Paris 6, 2003. http://www.theses.fr/2003PA066206.
Texto completo da fonteChen, Yuan. "Elaboration de films minces thermoélectriques par dépôt électrochimique en couches atomiques (EC-ALE)". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4342.
Texto completo da fonteAn electrochemical atomic layer epitaxy (EC-ALE) experiment platform was designed and constructed in this thesis, and this platform was proved to be qualified for EC-ALE experiments.Benefiting from the flexibility of the EC-ALE equipment, a new viewpoint about the UPD behavior of cobalt on the gold substrate has been put forward in this work. The results also show that the subsequent alternate deposition of Co and Sb monolayers is feasible.For the first time the electrodeposition of Sb2Se3 thin films by EC-ALE method on polycrystalline Au electrodes has been obtained and investigated. The deposition parameters were determined and the deposit was characterized by SEM and Raman analysis.The irreversible adsorption and reversible UPD behaviour of Sb on Pt electrode have also been studied. The results show that after the irreversibly adsorbed SbO+ species are reduced to metallic Sb, Sb atoms can be further deposited onto this Sb-modified Pt electrode in the way of UPD to increase the coverage of Sb on the Pt substrate
Abourayak, Khalid. "Comportement tribologique à chaud de couches minces extra-dures obtenues par déposition physique en phase vapeur (PVD)". Ecully, Ecole centrale de Lyon, 1996. http://www.theses.fr/1996ECDL0020.
Texto completo da fontePrieur, Thomas. "Sélection d'un précurseur pour l'élaboration de couches atomiques de cuivre : application à l'intégration 3D". Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00961695.
Texto completo da fonteTEBBJI, HASSAN. "Elaboration et caracterisation de films de cuprates du type phase infinie deposes par sequence de couches atomiques". Paris 6, 1993. http://www.theses.fr/1993PA066649.
Texto completo da fonteKuleff, Alexander I. "Études sur les effets de couches dans les systèmes atomiques, les molécules diatomiques et les agrégats métalliques". Paris 6, 2002. http://www.theses.fr/2002PA066202.
Texto completo da fonteTuske, Olivier. "Etude de la formation des atomes creux sous les surfaces : influence des premières couches atomiques du solide". Paris 6, 2002. http://www.theses.fr/2002PA066552.
Texto completo da fonte