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Author: Omar El Beqqali Publisher: ISBN: Category : Languages : fr Pages : 171
Book Description
LES MATERIAUX MOLECULAIRES ET EN PARTICULIER LES PHTALOCYANINES SONT SUSCEPTIBLES DE NOMBREUSES APPLICATIONS DANS LE DOMAINE DE L'ELECTRONIQUE: CAPTEURS OU TRANSISTORS EN FILMS MINCES. LES DEUX PREMIERS CHAPITRES DE LA THESE SONT CONSACRES AUX PROPRIETES FONDAMENTALES DE CES MATERIAUX ET A LEUR MISE EN UVRE: 1) PREPARATION DE COUCHES MINCES, MESURES D'EPAISSEUR, MESURES DIELECTRIQUES, MESURES SPECTROSCOPIQUES; 2) APPLICATION DE LA SPECTROSCOPIE AUGER ET DE LA SPECTROSCOPIE DE PERTES D'ENERGIE DES ELECTRONS DANS LES MATERIAUX MOLECULAIRES ETUDIES. LE TROISIEME CHAPITRE ABORDE LA QUESTION FONDAMENTALE DES PROPRIETES DIELECTRIQUES DES MATERIAUX MOLECULAIRES DESORDONNES ET MONTRE LA GRANDE GENERALITE DES RESULTATS EXPERIMENTAUX OBTENUS, EN PARTICULIER DE LA RELATION BNN. CEPENDANT, DANS LE CAS PARTICULIER DU DOPAGE DE PHTALOCYANINES PAR COEVAPORATION, LA VARIATION DE LA PENTE DE (G) AVEC LA TEMPERATURE EST TOUT A FAIT PARTICULIERE ET NE PEUT ETRE EXPLIQUEE PAR AUCUN DES MODELES DEVELOPPES. UNE EXPLICATION BASEE SUR UN PIEGEAGE DES PORTEURS AUX SITES CREES PAR LES IMPURETES EST PROPOSEE. LE CHAPITRE IV ABORDE LE PROBLEME FONDAMENTAL DE LA DIFFUSION D'IMPURETES GAZEUSES OU SOLIDES DANS LES PHTALOCYANINES. L'EFFET D'UN DEPOT SUPERFICIEL DE DOPANT OU D'UNE AUTRE PHTALOCYANINE EST MIS EN EVIDENCE ET SUIVI EN FONCTION DU TEMPS PAR DES MATHODES ELECTRIQUES OU SPECTROSCOPIQUES (AES, EELES, ETC.). ON MET EN EVIDENCE L'IMPORTANCE DU PIC DE RETRODIFFUSION ELASTIQUE DANS LA MESURE DE LA PROPORTION DE DOPANT DANS LA PHTALOCYANINE INITIALE, ET DANS LE CAS DE DEUX PHTALOCYANINES (PC#2LU DEPOSEE SUR PCZN) IL APPARAIT QUE LA DIFFUSION PEUT ETRE DUE A UN ECHANGE DU METAL CENTRAL ENTRE MOLECULES VOISINES. L'APPLICATION DES MESURES DE DIFFUSION AUX CAPTEURS EST ENVISAGEE. LE CHAPITE V PERMET DE RELIER LES PROPRIETES DES TRANSISTORS EN FILM MINCE A BASE DE PHTALOCYANINE OU DE BISPHTALOCYANINE A LA DIFFUSION DE L'OXYGE
Author: Omar El Beqqali Publisher: ISBN: Category : Languages : fr Pages : 171
Book Description
LES MATERIAUX MOLECULAIRES ET EN PARTICULIER LES PHTALOCYANINES SONT SUSCEPTIBLES DE NOMBREUSES APPLICATIONS DANS LE DOMAINE DE L'ELECTRONIQUE: CAPTEURS OU TRANSISTORS EN FILMS MINCES. LES DEUX PREMIERS CHAPITRES DE LA THESE SONT CONSACRES AUX PROPRIETES FONDAMENTALES DE CES MATERIAUX ET A LEUR MISE EN UVRE: 1) PREPARATION DE COUCHES MINCES, MESURES D'EPAISSEUR, MESURES DIELECTRIQUES, MESURES SPECTROSCOPIQUES; 2) APPLICATION DE LA SPECTROSCOPIE AUGER ET DE LA SPECTROSCOPIE DE PERTES D'ENERGIE DES ELECTRONS DANS LES MATERIAUX MOLECULAIRES ETUDIES. LE TROISIEME CHAPITRE ABORDE LA QUESTION FONDAMENTALE DES PROPRIETES DIELECTRIQUES DES MATERIAUX MOLECULAIRES DESORDONNES ET MONTRE LA GRANDE GENERALITE DES RESULTATS EXPERIMENTAUX OBTENUS, EN PARTICULIER DE LA RELATION BNN. CEPENDANT, DANS LE CAS PARTICULIER DU DOPAGE DE PHTALOCYANINES PAR COEVAPORATION, LA VARIATION DE LA PENTE DE (G) AVEC LA TEMPERATURE EST TOUT A FAIT PARTICULIERE ET NE PEUT ETRE EXPLIQUEE PAR AUCUN DES MODELES DEVELOPPES. UNE EXPLICATION BASEE SUR UN PIEGEAGE DES PORTEURS AUX SITES CREES PAR LES IMPURETES EST PROPOSEE. LE CHAPITRE IV ABORDE LE PROBLEME FONDAMENTAL DE LA DIFFUSION D'IMPURETES GAZEUSES OU SOLIDES DANS LES PHTALOCYANINES. L'EFFET D'UN DEPOT SUPERFICIEL DE DOPANT OU D'UNE AUTRE PHTALOCYANINE EST MIS EN EVIDENCE ET SUIVI EN FONCTION DU TEMPS PAR DES MATHODES ELECTRIQUES OU SPECTROSCOPIQUES (AES, EELES, ETC.). ON MET EN EVIDENCE L'IMPORTANCE DU PIC DE RETRODIFFUSION ELASTIQUE DANS LA MESURE DE LA PROPORTION DE DOPANT DANS LA PHTALOCYANINE INITIALE, ET DANS LE CAS DE DEUX PHTALOCYANINES (PC#2LU DEPOSEE SUR PCZN) IL APPARAIT QUE LA DIFFUSION PEUT ETRE DUE A UN ECHANGE DU METAL CENTRAL ENTRE MOLECULES VOISINES. L'APPLICATION DES MESURES DE DIFFUSION AUX CAPTEURS EST ENVISAGEE. LE CHAPITE V PERMET DE RELIER LES PROPRIETES DES TRANSISTORS EN FILM MINCE A BASE DE PHTALOCYANINE OU DE BISPHTALOCYANINE A LA DIFFUSION DE L'OXYGE
Author: Ahmed Belasri Publisher: Springer Nature ISBN: 9811554447 Category : Technology & Engineering Languages : en Pages : 659
Book Description
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.
Author: Jean-Pierre Launay Publisher: Oxford University Press, USA ISBN: 0199297789 Category : Science Languages : en Pages : 511
Book Description
The purpose of this book is to provide the reader with essential keys to a unified understanding of the rapidly expanding field of molecular materials and devices: electronic structures and bonding, magnetic, electrical and photo-physical properties, and the mastering of electrons in molecular electronics. Chemists will discover how basic quantum concepts allow us to understand the relations between structures, electronic structures, and properties of molecular entities and assemblies, and to design new molecules and materials. Physicists and engineers will realize how the molecular world fits in with their need for systems flexible enough to check theories or provide original solutions to exciting new scientific and technological challenges. The non-specialist will find out how molecules behave in electronics at the most minute, sub-nanosize level. The comprehensive overview provided in this book is unique and will benefit undergraduate and graduate students in chemistry, materials science, and engineering, as well as researchers wanting a simple introduction to the world of molecular materials.
Author: Alain Claverie Publisher: John Wiley & Sons ISBN: 1118579054 Category : Technology & Engineering Languages : en Pages : 280
Book Description
Today, the availability of bright and highly coherent electron sources and sensitive detectors has radically changed the type and quality of the information which can be obtained by transmission electron microscopy (TEM). TEMs are now present in large numbers not only in academia, but also in industrial research centers and fabs. This book presents in a simple and practical way the new quantitative techniques based on TEM which have recently been invented or developed to address most of the main challenging issues scientists and process engineers have to face to develop or optimize semiconductor layers and devices. Several of these techniques are based on electron holography; others take advantage of the possibility of focusing intense beams within nanoprobes. Strain measurements and mappings, dopant activation and segregation, interfacial reactions at the nanoscale, defect identification and specimen preparation by FIB are among the topics presented in this book. After a brief presentation of the underlying theory, each technique is illustrated through examples from the lab or fab.
Author: T. F. Connolly Publisher: Springer Science & Business Media ISBN: 1468462075 Category : Science Languages : en Pages : 115
Book Description
Since 1963 the Research Materials Information Center has been answering inquiries on the availability, preparation, and properties of ultrapure inorganic research specimens. It has been possible to do this with reasonable efficiency by searching an automated coded microfilm collection of the report and open literature and of data sheets and question naires provided by commercial and research producers of pure materials. With the growth of the collection to over 70,000 documents and the increase in the demand for more general background information, it has been necessary to compile bibliographies on an increasing variety of subjects. These have been used as indexes to the microfilmed documents for more efficient searching, and in the past distributed in response to individual requests. However, their size and number no longer permit so casual and uneconomic a method of distribution. The "ORNL Solid State Physics Literature Guides" is a practical alternative. Organization The subject organization of the bibliography is given by the Table of Contents. Each section is preceded by a collection of reviews, bibliographies, and "general" papers (i.e., those dealing with methods or equipment rather than single materials, or with such a wide variety of materials that no subsection was appropriate). Coverage is generally from 1960 to mid-1970. Emphasis is on inorganic materials.
Author: Dario Bercioux Publisher: Springer ISBN: 3319763881 Category : Technology & Engineering Languages : en Pages : 274
Book Description
This book covers basic and advanced aspects in the field of Topological Matter. The chapters are based on the lectures presented during the Topological Matter School 2017. It provides graduate level content introducing the basic concepts of the field, including an introductory session on group theory and topological classification of matter. Different topological phases such as Weyls semi-metals, Majoranas fermions and topological superconductivity are also covered. A review chapter on the major experimental achievements in the field is also provided. The book is suitable not only for master, graduate and young postdoctoral researchers, but also to senior scientists who want to acquaint themselves with the subject.
Author: Omar El Beqqali
Author: Omar El Beqqali
Author: Ahmed Belasri
Author: Zay Jeffries
Author: Jean-Pierre Launay
Author: International Atomic Energy Agency
Author: Alain Claverie
Author: T. F. Connolly
Author: Dario Bercioux
Author: Universidade de Coimbra