Modélisation de transistors en couches minces (TFT) fabriqués en technologie silicium microcristallin très basse température

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Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (911 download)

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Book Synopsis Modélisation de transistors en couches minces (TFT) fabriqués en technologie silicium microcristallin très basse température by : Mamadou Lamine Samb

Download or read book Modélisation de transistors en couches minces (TFT) fabriqués en technologie silicium microcristallin très basse température written by Mamadou Lamine Samb and published by . This book was released on 2014 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse porte sur la modélisation de TFTs à base de silicium microcristallin fabriqués à basse température. L'enjeu est de produire un modèle de TFT valide qui nous permettra d'apporter des explications sur les phénomènes observés expérimentalement et qui pourrait servir de base à un modèle compact. Tout d'abord, une étude expérimentale, dans laquelle il est montré l'effet bénéfique de l'utilisation de fines couches actives pour les TFTs, a été effectuée. En effet, plus la couche active des TFTs est fine, plus les TFTs sont stables, et meilleures sont leurs caractéristiques électriques. La croissance colonnaire de la structure du silicium microcristallin et le mauvais état de surface pour les grandes épaisseurs de couche active jouent un rôle important sur la détérioration de la qualité des TFTs. Par la suite, une simulation (sous SILVACO) du comportement des TFTs ayant des couches actives de différentes épaisseurs a été effectuée, pour essayer d'apporter des explications d'ordre électrostatique. Les mêmes effets observés sont surtout causés par une augmentation du champ électrique latéral lorsque l'épaisseur de la couche active diminue pour un matériau défectueux, favorisant ainsi la formation rapide du canal. La mauvaise qualité des interfaces avant et arrière a aussi une forte influence sur la détérioration des caractéristiques électriques de TFTs. Cette influence est réduite en utilisant une très fine couche active.

Flexoelectricity in Liquid Crystals

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Publisher : World Scientific
ISBN 13 : 1848167997
Total Pages : 299 pages
Book Rating : 4.8/5 (481 download)

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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.

Team Teaching at the College Level

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Publisher : Elsevier
ISBN 13 : 1483155188
Total Pages : 170 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Team Teaching at the College Level by : Horatio M. Lafauci

Download or read book Team Teaching at the College Level written by Horatio M. Lafauci and published by Elsevier. This book was released on 2013-10-22 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Team Teaching at the College Level describes a college-level team teaching program which affords unusual opportunities for developing an educational environment that fosters productive personal relationships between and among college students and faculty. The book describes the nature and scope of selected team teaching programs; the manner in which such programs can be administered; the potential impact of team teaching on a developing curriculum; the role of faculty and students who constitute the teaching-learning team; the particular housing requirements of team teaching programs; and finally, the limitations and future prospects of this emerging concept. In the following chapters frequent reference is made to the philosophy, program, and methodology of Boston University's College of Basic Studies, where a team system was first developed in 1949 and where an entire collegiate two-year program of studies functions on a team teaching plan. This College's extensive experience with team teaching has made possible refinements which may interest those seeking to broaden their understanding of the potential role and function of team teaching in higher education. * Rich in case studies, examples, and in-chapter elements that focus on the challenges of launching and operating a technology venture * In-depth examination of intellectual property development, valuation, deal structuring, and equity preservation, issues of most relevance to technology start-ups * Extensive discussion of technology management and continuous innovation as a competitive advantage * Addresses the issue of leading, managing, motivating, and compensating technical workers * More time on the fundamentals of marketing and selling, as these are elements of entrepreneurshipcommonly most neglected by engineers and scientists

Nonlinear Optical Materials

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Publisher : Springer Science & Business Media
ISBN 13 : 9780387985817
Total Pages : 270 pages
Book Rating : 4.9/5 (858 download)

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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.

Yvain

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Publisher : Yale University Press
ISBN 13 : 0300038380
Total Pages : 244 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Yvain by : Chretien de Troyes

Download or read book Yvain written by Chretien de Troyes and published by Yale University Press. This book was released on 1987-09-10 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: A twelfth-century poem by the creator of the Arthurian romance describes the courageous exploits and triumphs of a brave lord who tries to win back his deserted wife's love

Charles Pettigrew, First Bishop-elect of the North Carolina Episcopal Church

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Publisher : Hassell Street Press
ISBN 13 : 9781015031500
Total Pages : 32 pages
Book Rating : 4.0/5 (315 download)

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Book Synopsis Charles Pettigrew, First Bishop-elect of the North Carolina Episcopal Church by : Bennett H Wall

Download or read book Charles Pettigrew, First Bishop-elect of the North Carolina Episcopal Church written by Bennett H Wall and published by Hassell Street Press. This book was released on 2021-09-10 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.