Download or read book Contribution l tude des structures MIS M tal Isolant Semi conducteur written by Alain Bégon (auteur d'une thèse de physique).) and published by . This book was released on 1976 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'EFFET TUNNEL A TRAVERS LA COUCHE ISOLANTE JOUE UN ROLE IMPORTANT DANS LE COMPORTEMENT, MAIS CELUI-CI DEPEND BIEN SUR AUSSI DU SEMICONDUCTEUR. EXAMEN DES PHENOMENES AVEC LE SILICIUM ET LE GERMANIUM EN ENVISAGEANT 2 DOPAGES TRES DIFFERENTS. ON FAIT UNE PREMIERE ETUDE EN CONTINU AFIN DE DEDUIRE, DES CARACTERISTIQUES I-V, LES MODES DE CONDUCTION QUI INTERVIENNENT. LE PARAMETRE PHYSIQUE ESSENTIEL SERA LA TEMPERATURE. ENSUITE ON ETUDIE LE COMPORTEMENT DE CES STRUCTURES EN REGIME HARMONIQUE CE QUI NOUS PERMETTRA D'OBTENIR DES INFORMATIONS SUR LES INTERFACES: ON UTILISE POUR CELA LA VARIATION DE LA CONDUCTANCE DIFFERENTIELLE ET DE LA CAPACITE DYNAMIQUE.
Download or read book Contribution l tude des propri t s lectriques et photovolta ques des structures m tal semiconducteur et m tal isolant tunnel semiconducteur written by Hao Nguyen Phu and published by . This book was released on 1984 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'aspect "modélisation" concerne l'effet des résistances parasites sur la performance des cellules photovoltaïques, les réponses spectrales théoriques des photopiles mis tunnel et ainsi que l'élaboration d'un modèle électrique constitué de capacités différentielles sur les mêmes structures. L'aspect "caractérisation" comporte la réalisation d'un ensemble expérimental de mesure de la variation de la longueur de diffusion des porteurs minoritaires dans ITO/P-INP, l'étude de la modification des hauteurs de barrière au/oxyde/N-INP, et l'application des techniques de "caractérisation assistée par calculateur" pour déterminer les paramètres physiques à partir de courbes expérimentales
Download or read book REALISATION DE STRUCTURES METAL ISOLANT SEMI CONDUCTEUR ETUDE PAR SPECTROSCOPIES ELECTRONIQUES ET CARACTERISATIONS ELECTRIQUES written by Sandrine Merle and published by . This book was released on 1999 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES PERFORMANCES DES STRUCTURES METAL/ISOLANT/SEMI-CONDUCTEUR SONT CONDITIONNEES PAR LA QUALITE DE L'ISOLANT ET PAR LA MAITRISE DES PROPRIETES PHYSICO-CHIMIQUES DES INTERFACES ISOLANT/SEMI-CONDUCTEUR ET METAL/ISOLANT. LA PREMIERE PARTIE DE CE MEMOIRE EST DONC CONSACREE A L'ETUDE DES PROPRIETES DE DIFFERENTES COUCHES D'ALUMINE REALISEES SUR SUBSTRATS DE SILICIUM PAR PULVERISATION CATHODIQUE OU PAR EVAPORATION SOUS ULTRA-VIDE EN FONCTION DE DIVERS PARAMETRES EXPERIMENTAUX TELS QUE LA VITESSE D'EVAPORATION ET L'EPAISSEUR DES COUCHES DIELECTRIQUES. LA QUALITE DE CES COUCHES A ETE CONTROLEE PAR SPECTROSCOPIE DES ELECTRONS AUGER (A.E.S.), PAR SPECTROSCOPIE DES PHOTOELECTRONS SOUS EXCITATION X (X.P.S.) ET PAR CARACTERISATION ELECTRIQUE C(V). NOUS AVONS CONSTATE QU'UN CHAUFFAGE DU SUBSTRAT DURANT LE DEPOT D'ALUMINE ET DES VITESSES D'EVAPORATION TROP IMPORTANTES SEMBLENT ETRE NEFASTES A LA QUALITE DES COMPOSANTS. LA DETERMINATION DES PROPRIETES DE SURFACE DES COUCHES ISOLANTES A ETE OBTENUE PAR X.P.S. CETTE DERNIERE ETUDE EST TRES IMPORTANTE CAR LES CHANGEMENTS DE STOECHIOMETRIE, D'ORDRE ET DE STRUCTURE ELECTRONIQUE DE LA SURFACE DE L'ALUMINE VONT JOUER UN ROLE SUR LA CROISSANCE, LA MORPHOLOGIE ET LA STABILITE DU METAL DEPOSE. APRES AVOIR OPTIMISE LA QUALITE DES COUCHES DIELECTRIQUES, NOUS AVONS REALISE DES STRUCTURES M.I.S. A BASE D'INP (100). LA COMBINAISON DE L'A.E.S. ET DE MESURES ELECTRIQUES MONTRE QUE LA STABILITE DE L'INP (100), NETTOYE IONIQUEMENT, EST AMELIOREE LORSQUE LE SEMI-CONDUCTEUR EST RESTRUCTURE PAR EVAPORATION D'ATOMES D'ANTIMOINE. EN EFFET, UNE COUCHE TAMPON D'INSB EST CREEE EMPECHANT LA MIGRATION DES ATOMES DE PHOSPHORE ET D'INDIUM AU TRAVERS DE LA COUCHE D'ALUMINE. DE PLUS, LORS DE LA METALLISATION DE CES STRUCTURES, PAR EVAPORATION D'ATOMES D'OR, NOUS AVONS CONSTATE UNE AMELIORATION DES RESULTATS ELECTRIQUES LORSQUE LE DEPOT EST EFFECTUE SUR ALUMINE ENRICHIE EN ALUMINIUM.
Download or read book Mise au point d un proc d de fabricaiton de structures m tal isolant semi conducteur M I S written by Hasni Bendouma and published by . This book was released on 1984 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: Travail permettant de quantifier les causes à l'origine de la mauvaise fiabilité des diodes MIS. L'évolution de ces structures dépend surtout des propriétés de l'interface isolant/semiconducteur.
Download or read book Mise au point d un proc d de fabrication de structures m tal isolant semi conducteur M I S written by Hasni Bendouma (auteur d'une thèse de sciences.) and published by . This book was released on 1984 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dielectric Phenomena in Solids written by Kwan Chi Kao and published by Elsevier. This book was released on 2004-05-11 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: In general, a dielectric is considered as a non-conducting or insulating material (such as a ceramic or polymer used to manufacture a microelectronic device). This book describes the laws governing all dielectric phenomena.·A unified approach is used in describing each of the dielectric phenomena, with the aim of answering "what?", "how?" and "why" for the occurrence of each phenomenon;·Coverage unavailable in other books on ferroelectrics, piezoelectrics, pyroelectrics, electro-optic processes, and electrets;·Theoretical analyses are general and broadly applicable;·Mathematics is simplified and emphasis is placed on the physical insight of the mechanisms responsible for the phenomena;·Truly comprehensive coverage not available in the current literature.
Download or read book Climate in Museums written by Gael de Guichen and published by . This book was released on 1980 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Science Techniques written by Gianangelo Bracco and published by Springer Science & Business Media. This book was released on 2013-01-11 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes the experimental techniques employed to study surfaces and interfaces. The emphasis is on the experimental method. Therefore all chapters start with an introduction of the scientific problem, the theory necessary to understand how the technique works and how to understand the results. Descriptions of real experimental setups, experimental results at different systems are given to show both the strength and the limits of the technique. In a final part the new developments and possible extensions of the techniques are presented. The included techniques provide microscopic as well as macroscopic information. They cover most of the techniques used in surface science.
Download or read book An Introduction To Plasmonics written by Olivier Pluchery and published by World Scientific. This book was released on 2023-08-28 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is a plasmon? Is it a particle, like a photon or a wave? Plasmonics stands at the frontier of condensed matter physics, which is the world of electrons, optics and of photons. Plasmonics is one of the most active fields in nanophotonics. This book begins by exploring the concepts behind waves, and the electromagnetic description of light when it interacts with metals; it dedicates every chapter thereafter to all aspects of plasmonics. In particular, the surface plasmon polariton wave is explained in full detail, as well as the localized surface plasmon resonance of metallic nanoparticles. The active research area opened by plasmonics, as well as its applications, are also briefly explained, such as advanced biosensing, subwavelength waveguiding, quantum plasmonics, nanoparticle-based cancer therapies, optical nano-antenna and high-efficiency photovoltaic cells.The book is adapted for graduate students and places a special emphasis on providing complete explanations of the fundamental concepts of plasmonics. Further, each of these concepts is illustrated with examples drawn from the most recent scientific literature. Each chapter ends with a set of exercises that will help the reader revise the concepts and go deeper into the world of plasmonics. More than 70 exercises are included.
Download or read book Optical Properties Of Graphene written by Rolf Binder and published by World Scientific. This book was released on 2016-11-11 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive state-of-the-art overview of the optical properties of graphene. During the past decade, graphene, the most ideal and thinnest of all two-dimensional materials, has become one of the most widely studied materials. Its unique properties hold great promise to revolutionize many electronic, optical and opto-electronic devices. The book contains an introductory tutorial and 13 chapters written by experts in areas ranging from fundamental quantum mechanical properties to opto-electronic device applications of graphene.
Download or read book Current Programs written by and published by . This book was released on 1977 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Download or read book Water Heritage written by Willem Willems and published by . This book was released on 2017-01-15 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is vital for life, and its availability has been a concern for mankind throughout the ages. Its presence has always been ascertained in a variety of ways and the development of human society everywhere is connected with various forms of water management. Man also needed to manage water to find protection from its dangers and the need for that is increasing. In the coming decades, the impact of climate change is expected to intensify floods and droughts, affect groundwater resources, raise sea levels, increase pollution and enhance the frequency and magnitude of disasters. Societies around the world are challenged to adapt to these threats to ensure water security, economic prosperity and environmental and cultural sustainability. This book deals with the heritage of water management and the use that was made of water, as well as the impact of water management on heritage. An example of the former may be an ancient irrigation system in the Filipines or in the Middle East that still functions today, while the latter may reflect the importance of maintaining groundwater levels for the preservation of organic remains on archaeological sites or of wooden piles underneath standing buildings. In either case the papers in this book reflect the dynamic nature of water, and hence the equally dynamic relation between water management and heritage. This publication follows up on a Heritage and Water conference in Amsterdam, the first of its kind. Its main purpose is to credibly present the importance and value of heritage and historical experience for water and sustainable development, and vice versa, present the importance of water management for the protection of heritage. It presents evolving insights and concepts about Water and about Heritage from a variety of disciplines, policy and public perspectives illustrated with cases studies and aims to connect decision makers with experts such as engineers, archaeologists, historians, geographers, ecologist and landscape architects
Download or read book Weighing Imponderables and Other Quantitative Science Around 1800 written by J. L. Heilbron and published by University of California, Office for History of Science & Technology. This book was released on 1993 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conscripts and Deserters written by Alan I. Forrest and published by Oxford University Press, USA. This book was released on 1989 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between the outbreak of war with Austria in 1792 and Napoleon's final debacle in 1814, France remained almost continously at war, recruiting in the process some two to three million frenchmen--a level of recruitment unknown to previous generations and widely resented as an attack on the liberties of rural communities. Forrest challenges the notion of a nation heroically rushing to arms by examining the massive rates of desertion and avoidance of service as well as their consequences on French society--on military campaigns and the morale of armies, on political opinion at home, on the social fabric of local villages, and on the Napoleonic dream of bringing about a coherent and centralized state.
Download or read book Power Electronics Semiconductor Devices written by Robert Perret and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book relates the recent developments in several key electrical engineering R&D labs, concentrating on power electronics switches and their use. The first sections deal with key power electronics technologies, MOSFETs and IGBTs, including series and parallel associations. The next section examines silicon carbide and its potentiality for power electronics applications and its present limitations. Then, a dedicated section presents the capacitors, key passive components in power electronics, followed by a modeling method allowing the stray inductances computation, necessary for the precise simulation of switching waveforms. Thermal behavior associated with power switches follows, and the last part proposes some interesting prospectives associated to Power Electronics integration.
Download or read book The Essential Wallerstein written by Immanuel Maurice Wallerstein and published by . This book was released on 2000 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work draws upon the full range of Wallerstein's social scientific scholarship, from his research on contemporary African politics, to his study of the modern world-system and essays on the new structures of knowledge emerging from the crisis of the capitalist world-economy. His singular focus on the way in which change in one part of the globe affects the whole is all the more relevant as the world grows increasingly inter-dependant.
