Download or read book Etude des propri t s lectriques et de l effet de scintillation de certaines couches minces m talliques ou semiconductrices written by Clément Uny and published by . This book was released on 1961 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tude des propri t s lectriques et de l effet de scintillation de certaines couches minces m talliques ou semi conductrices written by Clément Uny and published by . This book was released on 1961 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tude des propri t s lectriques et de l effet de scintillation de certaines couches minces m talliques ous semiconductrices written by Clément Uny and published by . This book was released on 1961 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 12th General Assembly written by International Scientific Radio Union and published by . This book was released on 1957 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the General Assembly written by International Scientific Radio Union and published by . This book was released on 1957 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etude des propri t s de transport dans des mat riaux semiconducteurs en couches minces pour utilisation comme photoanodes dans les cellules de conversion de l nergie solaire written by Pierre Keou and published by . This book was released on 1989 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: DETERMINATION DES CONDITIONS DE DEPOT ET DE LEURS INFLUENCES SUR LES PROPRIETES DE COUCHES MINCES SEMICONDUCTRICES D'ITO, DE WSE#2 ET DE SITIO#3. ETUDE DES PROPRIETES PHYSICO-CHIMIQUES PAR DIFFRACTION DES RAYONS X, RETRODIFFUSION DE RUTHERFORD ET ABSORPTION OPTIQUE. MISE AU POINT D'UN DISPOSITIF EXPERIMENTAL POUR LES MESURES DE L'EFFET HALL
Download or read book Etude exp rimentale de la microstructure et des propri t s lectriques et optiques de couches minces et de nanofils d oxydes m talliques d Bi2O3 et ZnO synth tis s par voie lectrochimique written by Kévin Laurent and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'intérêt porté sur la miniaturisation des systèmes par la communauté scientifique est grand, que ce soit pour des raisons de mobilité, d'économie d'énergie ou d'innovation technologique. L'objectif de cette thèse est de déterminer les caractéristiques physiques et structurales des couches minces et des nanofils d'oxydes métalliques synthétisés par la méthode électrochimique. La première partie de cette thèse est consacrée à l'oxyde de bismuth en phase delta. Les couches minces élaborés par électrochimie sont de très bonne qualité cristalline, et seul la phase delta- Bi2O3 est présente. Le caractère nano structuré des couches minces est mis en évidence par les expériences de microscopie électronique en transmission (MET) et participe à la stabilisation de cette phase à température ambiante. Les mesures de conductivité réalisées par spectroscopie d'impédance complexe montrent un comportement différent selon la nature du substrat utilisé. Nous observons une excellente conductivité électrique des dépôts réalisés sur les substrats en argent doré (4·10-3 S·cm-1), alors que les dépôts obtenus sur l'inox montre un comportement très résistif (10-7 S·cm-1). La seconde partie de cette étude concerne l'oxyde de zinc. Les conditions d'élaboration par électrochimie influence les propriétés structurales et physiques des couches minces obtenues. Les différents traitements thermiques réalisés sur les couches minces de ZnO ont permis d'améliorer la qualité optique des couches et de modifier la structure du ZnO par incorporation d'azote lors de recuit dans l'ammoniaque. La dernière partie est consacrée à la synthèse et à la caractérisation de nanofils de ZnO élaborés par la méthode « template ». Cette méthode nous a permis de confiner la croissance par électrochimie dans des pores de différents diamètres. Les observations réalisés par MET et MET en Haute Résolution montrent que les nanofils obtenus sont monocristallins et de bonne qualité. Les propriétés d'émission observées en PL sont très proches des propriétés d'émission des couches minces.
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 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 ELABORATION CARACTERISATION ET ETUDE DES PROPRIETES ELECTRIQUES DE COUCHES MINCES DE GERMANATES ALCALINS written by KOMLA DZOGBENYUE.. AWITOR and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LES DIFFERENTS ASPECTS DE CE TRAVAIL CONCERNANT L'ETUDE DES MATERIAUX XA#2O-(1-X)GEO#2 (A=LI, NA) SOUS FORME DE COUCHE MINCES SONT: 1) L'ELABORATION DES DEPOTS PAR LA TECHNIQUE DE PULVERISATION CATHODIQUE RF; 2) L'ANALYSE DES MATERIAUX QUI A CONSISTE A DOSER LE LITHIUM ET LE SODIUM PAR SPECTROMETRIE DE FLAMME ET LE GERMANIUM PAR FLUORESCENCE X; 3) LEUR CARACTERISATION STRUCTURALE PAR DIFFRACTION X, EXAFS ET SPECTROSCOPIE INFRAROUGE; 4) LA MESURE DE L'EPAISSEUR ET DE L'INDICE DE REFRACTION DES COUCHES MINCES PAR INTERFEROMETRIE AINSI QUE LA DETERMINATION DE LA MASSE VOLUMIQUE DU MATERIAU; 5) L'ETUDE ELECTRIQUE DES DEPOTS PAR LA METHODE DES IMPEDANCES COMPLEXES. LES PROPRIETES ELECTRIQUES DE CES OXYDES MIXTES SOUS FORME DE COUCHE MINCE SONT COMPAREES A CELLES DES MATERIAUX MASSIFS VITREUX OU POLYCRISTALLINS DE MEME COMPOSITION. CE TRAVAIL MONTRE L'INTERET DES MATERIAUX ETUDIES POUR LA REALISATION DE DISPOSITIFS ELECTROCHIMIQUES MINIATURISES
Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
Download or read book Color Television Receivers written by and published by . This book was released on 1978 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report to the President on investigation no. 332-95 under section 332 of the Tariff Act of 1930, as amended.
Download or read book Radioisotope Instruments written by J. F. Cameron and published by Elsevier. This book was released on 2013-10-22 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Series of Monographs in Nuclear Energy, Volume 107: Radioisotope Instruments, Part 1 focuses on the design and applications of instruments based on the radiation released by radioactive substances. The book first offers information on the physical basis of radioisotope instruments; technical and economic advantages of radioisotope instruments; and radiation hazard. The manuscript then discusses commercial radioisotope instruments, including radiation sources and detectors, computing and control units, and measuring heads. The text describes the applications of radioisotope instruments in the industries, including mining and quarrying; agriculture, forestry, and fishing; manufacturing industries; transport and communications; and civil engineering constructions. The manuscript also focuses on legislation and codes of practice on the use of sealed radioisotope sources and control of radiation hazard. The book is a dependable reference for readers interested in radioisotope instruments.
Download or read book Nonlinear Optical Materials written by Jerome V. Moloney and published by Springer Science & Business Media. This book was released on 1998-08-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.
Download or read book Philostratus written by Philostratus (the Athenian) and published by . This book was released on 1912 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Geophysics written by Colin Geoffrey Clayton and published by Pergamon. This book was released on 1983 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. Nuclear techniques are critical in the exploration for oil and in the control of oil wells, and intrinsic to uranium exploration. This volume includes comprehensive review articles by internationally eminent scientists and engineers, on a wide variety of techniques and applications in the area of nuclear geophysics, including important new techniques and equipment being developed for use in the metalliferous and industrial minerals industries. Also included is a description of neutron interaction methods now being introduced to give a total elemental analysis, calorific value and ash-content, on-line.
Download or read book Analecta Or Materials For a History of Remarkable Providences Mostly Relating to Scotch Ministers and Christians written by Robert Wodrow and published by BoD – Books on Demand. This book was released on 2024-05-25 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprint of the original, first published in 1842.
