Download or read book ETUDE DE COUCHES MINCES ISOLANTES REPARTITION EN ENERGIE DES ETATS ELECTRONIQUES LOCALISES EN FONCTION DES CONDITIONS DE PREPARATION written by A.. BARRIERE and published by . This book was released on 1976 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES ETUDES PRESENTEES (ABSORPTION OPTIQUE, STIMULATIONS THERMIQUES, SEUIL PHOTOELECTRIQUE) LIEES A UN CONTROLE RIGOUREUX DES CONDITIONS DE PREPARATION DE COUCHES MINCES ISOLANTES (MGF::(2), ALF::(3), PB::(2)NB::(2)O::(7) ET DES DERIVES) ONT UN DOUBLE BUT: 1**(0)) RECHERCHER L'INFLUENCE DE L'ETAT CRISTALLOGRAPHIQUE ET DE LA COMPOSITION DE CES MATERIAUX SUR LA REPARTITION DES ETATS ELECTRONIQUES DANS LEUR BANDE INTERDITE. 2) DEDUIRE DE CES RESULTATS UNE INTERPRETATION DES MECANISMES DE CONDUCTION OBSERVES.
Download or read book PROPRIETES ELECTRIQUES DE COUCHES MINCES ISOLANTES INFLUENCE DES CONDITIONS DE PREPARATION written by Y.. DANTO and published by . This book was released on 1976 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE ETUDE DES PROPRIETES ELECTRIQUES DE COUCHES MINCES ISOLANTES (MGF::(2), ALF::(3) ET PB::(2)NB::(2)O::(7)), EFFECTUEE EN ASSURANT UN CONTROLE RIGOUREUX DES CONDITIONS DE PREPARATION A PERMIS D'APPORTER DES ELEMENTS DE REPONSE A DEUX QUESTIONS FONDAMENTALES: QUELLE EST L'INFLUENCE DES IMPURETES ET DE L'ETAT CRISTALLOGRAPHIQUE SUR LES MECANISMES DE CONDUCTION. QUELLE EST LEUR CORRELATION AVEC LES ETATS ELECTRONIQUES LOCALISES DANS LA BANDE INTERDITE DE CES MATERIAUX.
Download or read book Pr paration et tude de couches minces semiconductrices pour application lectro optiques written by Mohaidine Abani and published by . This book was released on 1988 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: DES COUCHES MINCES D'ITO (OXYDE D'INDIUM ET D'ETAIN) ET DE MOSE::(2) ONT ETE PREPAREES PAR PULVERISATION RF MAGNETRON POUR APPLICATIONS DANS LE DOMAINE DE L'ELECTROOPTIQUE ET DE LA CONVERSION DE L'ENERGIE PHOTOELECTROCHIMIQUE DE L'ENERGIE SOLAIRE. ETUDE DE L'INFLUENCE DES CONDITIONS DE PREPARATION ET DE TRAITEMENTS THERMIQUES SUR LES PROPRIETES OPTIQUES, ELECTRIQUES ET PHOTOELECTROCHIMIQUES DE CES COUCHES. CARACTERISATION PHYSICOCHIMIQUE DES FILMS (STRUCTURE ET TAUX DE CRISTALLISATION EN DIFFRACTION X, COMPOSITION EN MICROANALYSE NUCLEAIRE (RBS, PIXE) ET SONDE DE CASTAING, MORPHOLOGIE EN MICROSCOPIE ELECTRONIQUE A BALAYAGE ET A TRANSMISSION EN FONCTION DES CONDITIONS DE DEPOT ET DE TRAITEMENTS THERMIQUES
Download or read book PREPARATION ANALYSE ET ETUDE DES PROPRIETES ELECTRIQUES DES COUCHES MINCES ISOLANTES DE FLUORURE D ALUMINIUM written by DOMINIQUE.. FORCIOLI and published by . This book was released on 1973 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reparation et etude de couches minces semi conductrices pour applications electro optiques written by Mohaidine Abani and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DES COUCHES MINCES D'ITO (OXYDE D'INDIUM ET D'ETAIN) ET DE MOSE::(2) ONT ETE PREPAREES PAR PULVERISATION RF MAGNETRON POUR APPLICATIONS DANS LE DOMAINE DE L'ELECTROOPTIQUE ET DE LA CONVERSION DE L'ENERGIE PHOTOELECTROCHIMIQUE DE L'ENERGIE SOLAIRE. ETUDE DE L'INFLUENCE DES CONDITIONS DE PREPARATION ET DE TRAITEMENTS THERMIQUES SUR LES PROPRIETES OPTIQUES, ELECTRIQUES ET PHOTOELECTROCHIMIQUES DE CES COUCHES. CARACTERISATION PHYSICOCHIMIQUE DES FILMS (STRUCTURE ET TAUX DE CRISTALLISATION EN DIFFRACTION X, COMPOSITION EN MICROANALYSE NUCLEAIRE (RBS, PIXE) ET SONDE DE CASTAING, MORPHOLOGIE EN MICROSCOPIE ELECTRONIQUE A BALAYAGE ET A TRANSMISSION EN FONCTION DES CONDITIONS DE DEPOT ET DE TRAITEMENTS THERMIQUES
Download or read book Etude des propri t s lectroniques de couches minces de CZTSSe written by Raphaël Fillon and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ces travaux de thèse ont pour but d'étudier les propriétés électroniques de cellules photovoltaïques à base de couches minces de CZTSSe. L'objectif principal est d'identifier les défauts cristallographiques et de déterminer leur influence sur le fonctionnement des cellules solaires afin de mettre en oeuvre des stratégies de synthèse du CZTSSe pour le rendre compétitif par rapport aux autres matériaux en couches minces du photovoltaïque. La première phase du travail a consisté à élaborer le matériau et à l?intégrer dans une cellule solaire. Le CZTSSe est synthétisé par un procédé en deux étapes: le dépôt des précurseurs sous vide suivi d'un recuit sous atmosphère de sélénium. La deuxième phase du travail a concerné la caractérisation électrique des cellules sous obscurité. Pour cela des mesures de capacité en fonction de la tension et des mesures d'admittance sont effectuées en température. Les interprétations brutes des mesures sont menées en assimilant la cellule à une jonction n+p. Ce modèle s'avère insuffisant pour expliquer complètement les mesures expérimentales, ce qui nous a conduit, dans une troisième phase à une analyse plus détaillée. Pour cela, un calcul de l'admittance à partir des équations de base des semi-conducteurs a été développé. De cette manière, il est possible de sélectionner les contributions au signal qui sont incorporées au modèle. Initialement seule la contribution des défauts est intégrée. La prise en compte de fluctuations de potentiel améliore l'ajustement entre les données expérimentales et calculées. Toutefois une troisième composante doit être incluse pour rendre compte de la réponse diélectrique du CZTSSe. Cette composante à l'origine d'une variation en puissance de la conductivité avec la fréquence est caractéristique d'un mécanisme de hopping. L'incorporation de cette contribution dans la modélisation de l'admittance met en évidence que la conductivité dans le CZTSSe est due à un transport par états localisés, expliquant ainsi sa faible valeur.
Download or read book Adhesion Between Polymers and Concrete Adh sion Entre Polym res Et B ton written by H. R. Sasse and published by Springer. This book was released on 1986 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.
Download or read book Graphene written by Wonbong Choi and published by CRC Press. This book was released on 2016-04-19 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the late 20th century, graphene-a one-atom-thick planar sheet of sp2-bonded carbon atoms densely packed in a honeycomb crystal lattice-has garnered appreciable attention as a potential next-generation electronic material due to its exceptional properties. These properties include high current density, ballistic transport, chemical inertness,
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 Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Download or read book UNESCO General History of Africa Vol I Abridged Edition written by Jacqueline Ki-Zerbo and published by Univ of California Press. This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description
Download or read book Du Tac Au Tac written by Jeannette D. Bragger and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Improve your French conversation skills with 'Du tac au tac: Managing Conversations in French!" Each chapter is organized around what you need to know to interact with native speakers: how to initiate, maintain, and close conversations; how to communicate and respond to feelings and emotions; how to express opinions; and how to give and get information. The communicative strategies used in this French text help you reactivate, strengthen, and build on what you already know so that you can improve your French communication skills with ease."--Back cover.
Download or read book Mosaics Make a Site written by International Committee for the Conservation of Mosaics. Conference and published by . This book was released on 1996 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Solid State Lasers written by Sébastien Forget and published by Springer. This book was released on 2013-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
Download or read book In Vessel Melt Retention and Ex Vessel Corium Cooling IAEA Tecdoc No 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Download or read book Traditional Mediterranean Architecture written by Amin Maalouf and published by . This book was released on 2002 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cassava Mealybug Interactions written by Paul-André Calatayud and published by IRD Editions. This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most basic information on plant-mealybug interactions during the last decade has come from research on the cassava Manihot esculenta Crantz (Euphorbiaceae) system with two mealybug species, namely Phenacoccus manihoti Matile-Ferrero and Phenacoccus herreni Cox and Williams (Sternorrhyncha: Pseudococcidae). Both these insects cause severe damage to cassava in Africa and South America, respectively. This book reviews these interactions (plant selection by the insects, nutritional requirements
