Download or read book Optical Investigation of Molecular Beam Epitaxy AlxGal xN to Determine Material Quality written by Judith L. McFall and published by . This book was released on 2000-03-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: AlGaN and GaN have gained attention in the last few years for their applications in the blue and ultraviolet (Uv) wavelength range. However, the majority of the attention has been directed to studying GaN rather than AlGaN. AlGaN is however of great interest militarily since it has a wide, direct band gap, which makes it suitable for various applications in the military such as plume detection and threat warning systems. Cathodoluminescence (CL), photoluminescence (PL), and optical absorption were used to characterize AlGaN samples grown by molecular beam epitaxy (MBE). These samples utilized an AIN buffer layer to match the AlGaN epilayer to the sapphire substrate. CL was run at four different beam energies (2, 5, 10, and 15 keV) with four different beam currents (1, 10, 50, and 90 or 100 microA) on a GaN standard, the AlGaN samples, and the MN buffer layer. PL was performed in an attempt to distinguish DAP transitions that were not observed in CL. PL was done on the GaN standard and the ALGaN samples (x =0.10,0.20, and 0.30). Optical absorption measurements were performed to get an estimate of the band gap energies for comparison to those obtained in CL and PL. CL and PL were performed at liquid helium temperatures and optical absorption was performed at room temperature. AlGaN with different mole fractions of aluminum (x =0.10,0.20,0.30,0.40, and 0.50) was studied. Each sample was doped with approximately 10 to the 18th power/cu cm silicon atoms. The major finding of this study was that MBE is a good method for growing ALGaN with mole fraction of aluminum less than x = 0.30. Above this mole fraction, either a different growth technique or modifications to the MBE growth cycle are necessary to obtain quality material for semiconductor devices.
Download or read book Fundamentals of Semiconductors written by Peter YU and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excellent bridge between general solid-state physics textbook and research articles packed with providing detailed explanations of the electronic, vibrational, transport, and optical properties of semiconductors "The most striking feature of the book is its modern outlook ... provides a wonderful foundation. The most wonderful feature is its efficient style of exposition ... an excellent book." Physics Today "Presents the theoretical derivations carefully and in detail and gives thorough discussions of the experimental results it presents. This makes it an excellent textbook both for learners and for more experienced researchers wishing to check facts. I have enjoyed reading it and strongly recommend it as a text for anyone working with semiconductors ... I know of no better text ... I am sure most semiconductor physicists will find this book useful and I recommend it to them." Contemporary Physics Offers much new material: an extensive appendix about the important and by now well-established, deep center known as the DX center, additional problems and the solutions to over fifty of the problems at the end of the various chapters.
Download or read book Frontiers in Materials Modelling and Design written by Vijay Kumar and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is about fifteen years since we started hearing about Computational Ma terials Science and Materials Modelling and Design. Fifteen years is a long time and all of us realise that the use of computational methods in the design of materials has not been rapid enough. We also know the reasons for this. Mate rials properties are not dependent on a single phenomenon. The properties of materials cover a wide range from electronic, thermal, mechanical to chemical and electro-chemical. Each of these class of properties depend on specific phe nomenon that takes place at different scales or levels of length from sub atomic to visible length levels. The energies controlling the phenomena also varies widely from a fraction of an electron volt to many joules. The complexity of materials are such that while models and methods for treating individual phenomenon have been perfected, incorporating them into a single programme taking into account the synergism is a formidable task. Two specific areas where the progress has been very rapid and substantive are prediction of phase stability and phase diagrams and embrittlement of steels by metalloids. The first three sections of the book contain papers which review the theoreti cal principles underlying materials modeling and simulations and show how they can be applied to the problems just mentioned. There is now a strong interest in designing new materials starting from nanoparticles and clusters.
Download or read book Electronic Properties of Materials written by Rolf E. Hummel and published by Springer. This book was released on 2013-11-11 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is quite satisfying for an author to learn that his brainchild has been favorably accepted by students as well as by professors and thus seems to serve some useful purpose. This horizontally integrated text on the electronic properties of metals, alloys, semiconductors, insulators, ceramics, and poly meric materials has been adopted by many universities in the United States as well as abroad, probably because of the relative ease with which the material can be understood. The book has now gone through several re printing cycles (among them a few pirate prints in Asian countries). I am grateful to all readers for their acceptance and for the many encouraging comments which have been received. I have thought very carefully about possible changes for the second edition. There is, of course, always room for improvement. Thus, some rewording, deletions, and additions have been made here and there. I withstood, how ever, the temptation to expand considerably the book by adding completely new subjects. Nevertheless, a few pages on recent developments needed to be inserted. Among them are, naturally, the discussion of ceramic (high-tempera ture) superconductors, and certain elements of the rapidly expanding field of optoelectronics. Further, I felt that the readers might be interested in learning some more practical applications which result from the physical concepts which have been treated here.
Download or read book Principles of Solar Cells LEDs and Diodes written by Adrian Kitai and published by John Wiley & Sons. This book was released on 2011-09-13 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The book will cover the two most important applications of semiconductor diodes - solar cells and LEDs - together with quantitative coverage of the physics of the PN junction at the senior undergraduate level. It will include: Review of semiconductor physics Introduction to PN diodesThe solar cell Physics of efficient conversion of sunlight into electrical energy Semiconductor solar cell materials and device physics Advanced solar cell materials and devices The light emitting diode Physics of efficient conversion of electrical energy into light Semiconductor light emitting diode materials and device physics Advanced light emitting diode materials and devices"--
Download or read book Introduction to Nanoelectronics written by Vladimir V. Mitin and published by Cambridge University Press. This book was released on 2008 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive textbook on nanoelectronics covering the underlying physics, nanostructures, nanomaterials and nanodevices.
Download or read book Optics of Semiconductors and Their Nanostructures written by Heinz Kalt and published by Springer Science & Business Media. This book was released on 2013-04-09 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years the field of semiconductor optics has been pushed to several extremes. The size of semiconductor structures has shrunk to dimensions of a few nanometers, the semiconductor-light interaction is studied on timescales as fast as a few femtoseconds, and transport properties on a length scale far below the wavelength of light have been revealed. These advances were driven by rapid improvements in both semiconductor and optical technologies and were further facilitated by progress in the theoretical description of optical excitations in semiconductors. This book, written by leading experts in the field, provides an up-to-date introduction to the optics of semiconductors and their nanostructures so as to help the reader understand these exciting new developments. It also discusses recently established applications, such as blue-light emitters, as well as the quest for future applications in areas such as spintronics, quantum information processing, and third-generation solar cells.
Download or read book Encyclopedia of Materials Characterization written by Charles A. Evans and published by Gulf Professional Publishing. This book was released on 1992 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is a comprehensive volume on analytical techniques used in materials science for the characterization of surfaces, interfaces and thin films. This flagship volume is a unique, stand-alone reference for materials science practitioners, process engineers, students and anyone with a need to know about the capabilities available in materials analysis. An encyclopedia of 50 concise articles, this book will also be a practical companion to the forthcoming books in the series."--Knovel.
Download or read book Technology of Quantum Devices written by Manijeh Razeghi and published by Springer Science & Business Media. This book was released on 2009-12-11 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technology of Quantum Devices offers a multi-disciplinary overview of solid state physics, photonics and semiconductor growth and fabrication. Readers will find up-to-date coverage of compound semiconductors, crystal growth techniques, silicon and compound semiconductor device technology, in addition to intersubband and semiconductor lasers. Recent findings in quantum tunneling transport, quantum well intersubband photodetectors (QWIP) and quantum dot photodetectors (QWDIP) are described, along with a thorough set of sample problems.
Download or read book High Performance Computing Systems and Applications written by Nikitas J. Dimopoulos and published by Springer Science & Business Media. This book was released on 2002 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Performance Computing Systems and Applications contains a selection of fully refereed papers presented at the 14th International Conference on High Performance Computing Systems and Applications held in Victoria, Canada, in June 2000. This book presents the latest research in HPC Systems and Applications, including distributed systems and architecture, numerical methods and simulation, network algorithms and protocols, computer architecture, distributed memory, and parallel algorithms. It also covers such topics as applications in astrophysics and space physics, cluster computing, numerical simulations for fluid dynamics, electromagnetics and crystal growth, networks and the Grid, and biology and Monte Carlo techniques. High Performance Computing Systems and Applications is suitable as a secondary text for graduate level courses, and as a reference for researchers and practitioners in industry.
Download or read book Characterizing Metal Semiconductor Ohmic Contacts written by H. B. Harrison and published by . This book was released on with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductor Physics written by Karlheinz Seeger and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of "Semiconductor Physics" was published in 1973 by Springer-Verlag Wien-New York as a paperback in the Springer Study Edition. In 1977, a Russian translation by Professor Yu. K. Pozhela and coworkers at Vilnius/USSR was published by Izdatelstvo "MIR", Mo scow. Since then new ideas have been developed in the field of semi conductors such as electron hole droplets, dangling bond saturation in amorphous silicon by hydrogen, or the determination of the fine struc ture constant from surface quantization in inversion layers. New tech niques such as molecular beam epitaxy which has made the realization of the Esaki superlattice possible, deep level transient spectroscopy, and refined a. c. Hall techniques have evolved. Now that the Viennese edition is about to go out of print, Springer-Verlag, Berlin-Heidelberg-New York is giving me the opportunity to include these new subjects in a monograph to appear in the Solid-State Sciences series. Again it has been the intention to cover the field of semiconductor physics comprehensively, although some chapters such as diffusion of hot carriers and their galvanomagnetic phenomena, as well as super conducting degenerate semiconductors and the appendices, had to go for commercial reasons. The emphasis is more on physics than on device as pects.
Download or read book Analysis and Simulation of Heterostructure Devices written by Vassil Palankovski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of this monograph is the physical modeling of heterostructure devices. A detailed discussion of physical models and parameters for compound semiconductors is presented including the relevant aspects of modern submicron heterostructure devices. More than 25 simulation examples for different types of Si(Ge)-based, GaAs-based, InP-based, and GaN-based heterostructure bipolar transistors (HBTs) and high electron mobility transistors (HEMTs) are given in comparison with experimental data from state-of-the-art devices.
Download or read book Optoelectronic Devices written by M Razeghi and published by Elsevier. This book was released on 2004 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tremendous progress has been made in the last few years in the growth, doping and processing technologies of the wide bandgap semiconductors. As a result, this class of materials now holds significant promis for semiconductor electronics in a broad range of applications. The principal driver for the current revival of interest in III-V Nitrides is their potential use in high power, high temperature, high frequency and optical devices resistant to radiation damage. This book provides a wide number of optoelectronic applications of III-V nitrides and covers the entire process from growth to devices and applications making it essential reading for those working in the semiconductors or microelectronics. Broad review of optoelectronic applications of III-V nitrides
Download or read book Semiconductor Physical Electronics written by Sheng S. Li and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to provide the reader with a self-contained treatment of fundamen tal solid state and semiconductor device physics. The material presented in the text is based upon the lecture notes of a one-year graduate course sequence taught by this author for many years in the ·Department of Electrical Engineering of the University of Florida. It is intended as an introductory textbook for graduate students in electrical engineering. However, many students from other disciplines and backgrounds such as chemical engineering, materials science, and physics have also taken this course sequence, and will be interested in the material presented herein. This book may also serve as a general reference for device engineers in the semiconductor industry. The present volume covers a wide variety of topics on basic solid state physics and physical principles of various semiconductor devices. The main subjects covered include crystal structures, lattice dynamics, semiconductor statistics, energy band theory, excess carrier phenomena and recombination mechanisms, carrier transport and scattering mechanisms, optical properties, photoelectric effects, metal-semiconductor devices, the p--n junction diode, bipolar junction transistor, MOS devices, photonic devices, quantum effect devices, and high speed III-V semiconductor devices. The text presents a unified and balanced treatment of the physics of semiconductor materials and devices. It is intended to provide physicists and mat erials scientists with more device backgrounds, and device engineers with a broader knowledge of fundamental solid state physics.
Download or read book Superlattices and Other Heterostructures written by Eougenious L. Ivchenko and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superlattices and Other Heterostructures deals with optical properties of superlattices and quantum-well structures with emphasis on phenomena governed by crystal symmetries. After a brief introduction to group theory and symmetries, methods to calculate spectra of electrons, excitions and phonons in heterostructures are discussed. Further chapters cover absorption and reflection of light under interband transitions, cyclotron and electron spin-resoncance, light scattering by free and bound carriers as well as by optical and acoustic phonons, polarized photoluminescence, optical spin orientation of electrons and excitions, and nonlinear optical and photogalvanic effects.
Download or read book Solid State and Semiconductor Physics written by John Philip McKelvey and published by . This book was released on 1986 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
