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Etude Du Silicium Poreux De Type N Obtenu Par Voie Photoelectrochimique
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Book Synopsis ETUDE DU SILICIUM POREUX DE TYPE N OBTENU PAR VOIE PHOTOELECTROCHIMIQUE by : ABDELGHANI.. LAGOUBI
Download or read book ETUDE DU SILICIUM POREUX DE TYPE N OBTENU PAR VOIE PHOTOELECTROCHIMIQUE written by ABDELGHANI.. LAGOUBI and published by . This book was released on 1993 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE ETUDE REALISEE AU LABORATOIRE DE PHYSIQUE DES SOLIDES DE BELLEVUE EST CENTREE SUR L'OBTENTION ET LA CARACTERISATION DU SILICIUM POREUX DE TYPE N PAR CORROSION PHOTOELECTROCHIMIQUE DU SILICIUM MONOCRISTALLIN EN PRESENCE D'ACIDE FLUORHYDRIQUE. UN RESULTAT MARQUANT DE CES ETUDES EST LA MISE EN EVIDENCE DE DEUX COUCHES DIFFERENTES DE SILICIUM POREUX. LA COUCHE SUPERFICIELLE DITE SILICIUM NANOPOREUX PRESENTANT DES VIDES (PORES) DE L'ORDRE DU MANOMETRE RECOUVRE UNE COUCHE DE SILICIUM MACROPOREUX PRESENTANT DES GRANDS PORES DONT LE DIAMETRE EST DE L'ORDRE DU MICRON. LA COUCHE DE SILICIUM NANOPOREUX EST AISEMENT DISSOUTE EN MILIEU ALCALIN CE QUI A PERMIS D'ETUDIER SEPAREMENT CERTAINES DES PROPRIETES DES DEUX TYPES DE SILICIUM POREUX. L'INFLUENCE DE DIVERS PARAMETRES EXPERIMENTAUX (TAUX DE DOPAGE, ORIENTATION CRISTALLOGRAPHIQUE, INTENSITE LUMINEUSE, CHARGE TRANSFEREE) SUR LA CORROSION PHOTOELECTROCHIMIQUE DU SILICIUM DE TYPE N, FAIBLEMENT DOPE (N#D=10#1#5 CM##3) OU FORTEMENT DOPE (N#D=10#1#8 CM##3) D'ORIENTATION (100) OU (111) A FAIT L'OBJET D'UNE ETUDE SYSTEMATIQUE. LES PROPRIETES ELECTRONIQUES, PHOTOELECTROCHIMIQUES ET OPTIQUES DES DEUX TYPES DE SILICIUM POREUX ONT ETE CARACTERISEES. L'ETUDE DE LA PHOTOLUMINESCENCE A TEMPERATURE AMBIANTE INDIQUE QUE CELLE-CI EST EXCLUSIVEMENT LIEE A LA COUCHE NANOPOREUSE. LA COUCHE MACROPOREUSE, NOIRE D'ASPECT, APPARAIT COMME UN MATERIAU PRESQUE IDEALEMENT ABSORBANT ET POURRAIT DONNER LIEU A DES APPLICATIONS DANS LE PHOTOVOLTAIQUE
Book Synopsis SILICIUM POREUX DE TYPE N OBTENU PAR ATTAQUE PHOTOELECTROCHIMIQUE A PARTIR DE SILICIUM MONOCRISTALLIN ET POLYCRISTALLIN by : AMINE.. ABOULIATIM
Download or read book SILICIUM POREUX DE TYPE N OBTENU PAR ATTAQUE PHOTOELECTROCHIMIQUE A PARTIR DE SILICIUM MONOCRISTALLIN ET POLYCRISTALLIN written by AMINE.. ABOULIATIM and published by . This book was released on 1996 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE TRAVAIL PRESENTE DANS CE MEMOIRE CONCERNE LE SILICIUM POREUX DE TYPE N, REALISE PAR ATTAQUE PHOTO-ELECTROCHIMIQUE A PARTIR DE SILICIUM MONOCRISTALLIN ET POLYCRISTALLIN. LA PREMIERE PARTIE TRAITE DU SILICIUM MONOCRISTALLIN POREUX DE TYPE N. L'INFLUENCE DE DEUX PARAMETRES D'ANODISATION (DENSITE DE COURANT ET INTENSITE D'ECLAIREMENT) ET DU NIVEAU DE DOPAGE SUR LES PROPRIETES STRUCTURALES ET DE PHOTOLUMINESCENCE A FAIT L'OBJET D'UNE ETUDE SYSTEMATIQUE. LA DEUXIEME PARTIE S'INTERESSE AU SILICIUM POLYCRISTALLIN POREUX. LE SILICIUM POLYCRISTALLIN UTILISE A ETE DEPOSE AMORPHE PAR LPCVD PUIS CRISTALLISE PAR RECUIT THERMIQUE (LE DOPAGE ETANT EFFECTUE IN-SITU). LA STRUCTURE A ETE EXAMINEE PAR MICROSCOPIE ELECTRONIQUE A BALAYAGE ET EN TRANSMISSION. LES PROPRIETES DE PHOTOLUMINESCENCE ONT ETE ETUDIEES EN FONCTION DE DIVERSES CONDITIONS ELECTROCHIMIQUES. UNE COMPARAISON ENTRE LES PROPRIETES DE PHOTOLUMINESCENCE DU SILICIUM POLYCRISTALLIN POREUX ET CELLES DU SILICIUM MONOCRISTALLIN POREUX A EGALEMENT ETE EFFECTUEE. NOUS AVONS REALISE DES COUCHES POLYCRISTALLINES POREUSES AYANT DES PROPRIETES DE PHOTOLUMINESCENCE SIMILAIRE A CELLES DU SILICIUM POREUX OBTENU A PARTIR DE SILICIUM MONOCRISTALLIN. CES RESULTATS OUVRENT DES PERSPECTIVES POUR L'UTILISATION DE CE MATERIAU POUR DES APPLICATIONS DANS LE DOMAINE DE L'OPTOELECTRONIQUE
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.
Book Synopsis Flexoelectricity in Liquid Crystals by : Agnes Buka
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.
Book Synopsis Nonlinear Optical Materials by : Jerome V. Moloney
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.
Book Synopsis Forest Fire Research by : Universidade de Coimbra
Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
