Download or read book Photoluminescence of Single Quantum Well Structures in Gallium Arsenide written by Christian A. Bartholomew and published by . This book was released on 2001-03-01 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continued development of state-of the-art semiconductor technologies and devices by the United States Air Force and the Department of Defense requires accurate and efficient techniques to evaluate and model these new materials. Of particular interest to the Air Force are quantum well structures which can be used for small-scale laser sources in fly-by-light applications, as efficient infrared countermeasures to heat-seeking missiles, or as advanced seekers in optically guided missiles. This thesis provides the initial experimental procedures and data necessary to begin producing accurate yet robust models. Although carrier effective masses could not be evaluated using hot-electron photoluminescence, photoluminescence excitation and temperature studies were conducted to determine the effects of strain and impurities on band structure in quantum structures. Beryllium-doped indium gallium arsenide (InGaAs:Be) quantum wells, compressively strained to lattice- match gallium arsenide, were studied, and parameters for strained energy gap, heavy hole-light hole split, and acceptor binding energy were evaluated. With the carrier effective masses fixed at accepted values, strain produced a 1.2715 eV energy gap within the well and a heavy hole-light hole split of 23.2meV. Finally, the beryllium binding energy was found to be 22.1 meV measured above the highest valence band (first quantized heavy hole band) at 300 K.
Download or read book Gallium Arsenide and Related Compounds 1992 Proceedings of the 19th INT Symposium 28 September 2 October 1992 Karuizawa Japan written by Ikegami and published by CRC Press. This book was released on 1993-01-01 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together international experts from 16 countries, Gallium Arsenide and Related Compounds 1992 focuses on device applications for Gallium Arsenide and related compounds. A topic of importance discussed is the first GaAs supercomputer from Fujitsu. The book also explores carbon doping and device applications in laser diodes, light modulators, and amplifiers, emphasizing business opportunity in consumer applications such as personal communications and TV tuners. It includes an account of the use of scanning tunneling microscopies in GaAs and related compounds. This book is ideal for physicists, materials scientists, and electronics and electrical engineers involved in III-V compound research.
Download or read book Gallium Arsenide and Related Compounds 1993 Proceedings of the 20th INT Symposium 29 August 2 September 1993 Freiburg im Braunschweig Germany written by Günter Weimann and published by CRC Press. This book was released on 1994-01-01 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gallium Arsenide and Related Compounds 1993 covers III-V compounds from crystal growth of materials to their device applications. Focusing on the fields of optical communications and satellite broadcasting, the book describes the practical applications for GaAs and III-V compounds in devices and circuits, both conventional and those based on quantum effects. It also discusses ultrafast GaAs transistors and integrated circuits, novel laser diodes, and tunneling devices, and considers the direction for future technologies. In addition, this volume addresses the increasing demands of ultra high speed systems that require careful selection of III-V materials to optimize the performance of electronic and optoelectronic components. It is ideal reading for physicists, materials scientists, electrical, and electronics engineers investigating III-V compound materials, properties, and devices.
Download or read book Physics Of Superlattice And Quantum Wells Proceedings Of The Workshop written by Sue-chu Shen and published by World Scientific. This book was released on 1989-06-01 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains important and active results in the fields of Superlattices and Quantum Wells. It includes current prospects regarding scientific discoveries and future device applications. Papers are contributed by leading scientists in the world.
Download or read book Electronic Structure of Semiconductor Heterojunctions written by Giorgio Margaritondo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: E se non che di cid son vere prove A nd were it not for the true evidence Per piti e piti autori, che sa, ra. nno Of many authors who will be Per i miei versi nominati altrove, Mentioned elsewhere in my rhyme Non presterei alla penna 10. mana I would not lend my hand to the pen Per nota1' cid ch'io vidi, can temenza And describe my observations, for fear ehe non fosse do. altri casso e van 0; That they would be rejected and in vane; Mala lor chiara. e vera. esperienza But these authors' clear and true experience Mi assicura. nel dir, come persone Encourages me to report, since they Degne di fede ad ogni gra. n sentenza. Should always be trusted for their word. [From" Dittamondo", by Fazio degli UbertiJ Heterojunction interfaces, the interfaces between different semiconducting materi als, have been extensively explored for over a quarter of a century. The justifica tion for this effort is clear - these interfaces could become the building blocks of lllany novel solid-state devices. Other interfaces involving semiconductors are al ready widely used in technology, These are, for example, metal-semiconductor and insulator-semiconductor junctions and hOll1ojunctions. In comparison, the present applications of heterojunction int. erfaces are limited, but they could potentially becOlne lnuch lllore ext. ensive in the neal' future. The path towards the widespread use of heterojunctions is obstructed by several obstacles
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Switching in Low Dimensional Systems written by Hartmut Haug and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains all the papers presented at the NATO workshop on "Optical Switching in Low Dimensional Systems" held in Marbella, Spain from October 6th to 8th, 1988. Optical switching is a basic function for optical data processing, which is of technological interest because of its potential parallelism and its potential speed. Semiconductors which exhibit resonance enhanced optical nonlinearities in the frequency range close to the band edge are the most intensively studied materials for optical bistability and fast gate operation. Modern crystal growth techniques, particularly molecular beam epitaxy, allow the manufacture of semiconductor microstructures such as quantum wells, quantum wires and quantum dots in which the electrons are only free to move in two, one or zero dimensions, of the optically excited electron-hole pairs in these low respectively. The spatial confinement dimensional structures gives rise to an enhancement of the excitonic nonlinearities. Furthermore, the variations of the microstruture extensions, of the compositions, and of the doping offer great new flexibility in engineering the desired optical properties. Recently, organic chain molecules (such as polydiacetilene) which are different realizations of one dimensional electronic systems, have been shown also to have interesting optical nonlinearities. Both the development and study of optical and electro-optical devices, as well as experimental and theoretical investigations of the underlying optical nonlinearities, are contained in this book.
Download or read book Compound Semiconductors 1995 Proceedings of the Twenty Second INT Symposium on Compound Semiconductors held in Cheju Island Korea 28 August 2 September 1995 written by Institute of Physics Conference and published by CRC Press. This book was released on 2020-10-28 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compound Semiconductors 1995 focuses on emerging applications for GaAs and other compound semiconductors, such as InP, GaN, GaSb, ZnSe, and SiC, in the electronics and optoelectronics industries. The book presents the research and development work in all aspects of compound semiconductors. It reflects the maturity of GaAs as a semiconductor material and the rapidly increasing pool of research information on many other compound semiconductors. Covering the full breadth of the subject, from growth through processing to devices and integrated circuits, this volume provides researchers in materials science, device physics, condensed matter physics, and electrical and electronic engineering with a comprehensive overview of developments in this well-established research area.
Download or read book Compound Semiconductors 1995 Proceedings of the Twenty Second INT Symposium on Compound Semiconductors held in Cheju Island Korea 28 August 2 September 1995 written by Woo and published by CRC Press. This book was released on 1996-04-25 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compound Semiconductors 1995 focuses on emerging applications for GaAs and other compound semiconductors, such as InP, GaN, GaSb, ZnSe, and SiC, in the electronics and optoelectronics industries. The book presents the research and development work in all aspects of compound semiconductors. It reflects the maturity of GaAs as a semiconductor material and the rapidly increasing pool of research information on many other compound semiconductors. Covering the full breadth of the subject, from growth through processing to devices and integrated circuits, this volume provides researchers in materials science, device physics, condensed matter physics, and electrical and electronic engineering with a comprehensive overview of developments in this well-established research area.
Download or read book Resonant Tunneling in Semiconductors written by L.L. Chang and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the NATO Advanced Research Workshop on "Resonant Tunneling in Semiconductors: Physics and Applications", held at Escorial, Spain, on May 14-18, 1990. The tremendous growth in the past two decades in the field of resonant tunneling in semiconductor heterostructures has followed, if not outpaced, the expansion wit nessed in quantum structures in general. Resonant tunneling shares also the multi disciplinary nature of that broad area, with an emphasis on the underlying physics but with a coverage of material systems on the one end and device applications on the other. Indeed, that resonant tunneling provides great flexibility in terms of materials and configurations and that it is inherently a fast process with obvious device impli cations by the presence of a negative differential resistance have contributed to the unrelenting interest in this field. These proceedings consist of 49 refereed articles; they correspond to both invited and contributed talks at the workshop. Because of the intertwinning nature of the subject matter, it has been difficult to subdivide them in well-defined sections. Instead, they are arranged in several broad categories, meant to serve only as guidelines of emphasis on different topics and aspects. The book starts with an introduction to res onant tunneling by providing a perspective of the field in the first article. This is fol lowed by discussions of different material systems with various band-structure effects.
Download or read book Hot Electrons in Semiconductors written by N. Balkan and published by . This book was released on 1998 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under certain conditions electrons in a semiconductor become much hotter than the surrounding crystal lattice. When this happens, Ohm's Law breaks down: current no longer increases linearly with voltage and may even decrease. Hot electrons have long been a challenging problem in condensed matter physics and remain important in semiconductor research. Recent advances in technology have led to semiconductors with submicron dimensions, where electrons can be confined to two (quantum well), one (quantum wire), or zero (quantum dot) dimensions. In these devices small voltages heat electrons rapidly, inducing complex nonlinear behavior; the study of hot electrons is central to their further development. This book is the only comprehensive and up-to-date coverage of hot electrons. Intended for both established researchers and graduate students, it gives a complete account of the historical development of the subject, together with current research and future trends, and covers the physics of hot electrons in bulk and low-dimensional device technology. The contributions are from leading scientists in the field and are grouped broadly into five categories: introduction and overview; hot electron-phonon interactions and ultra-fast phenomena in bulk and two-dimensional structures; hot electrons in quantum wires and dots; hot electron tunneling and transport in superlattices; and novel devices based on hot electron transport.
Download or read book Semiconductor Interfaces Microstructures and Devices written by Zhe Chuan Feng and published by CRC Press. This book was released on 1993-01-01 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: A semiconductor interface is the contact between the semiconductor itself and a metal. The interface is a site of change, and it is imperative to ensure that the semiconducting material is sealed at this point to maintain its reliability. This book examines various aspects of interfaces, showing how they can affect microstructures and devices such as infrared photodetectors (as used in nightsights) and blue diode lasers. It presents various techniques for examining different types of semiconductor material and suggests future potential commercial applications for different semiconductor devices. Written by experts in their fields and focusing on metallic semiconductors (Cadmium Telluride and related compounds), this comprehensive overview of recent developments is an essential reference for those working in the semiconductor industry and provides a concise and comprehensive introduction to those new to the field.
Download or read book Quantum Well Lasers written by Peter S. Zory Jr. and published by Elsevier. This book was released on 2012-12-02 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the information necessary for the reader to achieve a thorough understanding of all aspects of QW lasers - from the basic mechanism of optical gain, through the current technolgoical state of the art, to the future technologies of quantum wires and quantum dots. In view of the growing importance of QW lasers, this book should be read by all those with an active interest in laser science and technology, from the advanced student to the experienced laser scientist.* The first comprehensive book-length treatment of quantum well lasers* Provides a detailed treatment of quantum well laser basics* Covers strained quantum well lasers* Explores the different state-of-the-art quantum well laser types* Provides key information on future laser technologies
Download or read book Dilute Nitride Semiconductors written by Mohamed Henini and published by Elsevier. This book was released on 2004-12-15 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: - This book contains full account of the advances made in the dilute nitrides, providing an excellent starting point for workers entering the field. - It gives the reader easier access and better evaluation of future trends, Conveying important results and current ideas. - Includes a generous list of references at the end of each chapter, providing a useful reference to the III-V-N based semiconductors research community. The high speed lasers operating at wavelength of 1.3 μm and 1.55 μm are very important light sources in optical communications since the optical fiber used as a transport media of light has dispersion and attenuation minima, respectively, at these wavelengths. These long wavelengths are exclusively made of InP-based material InGaAsP/InP. However, there are several problems with this material system. Therefore, there has been considerable effort for many years to fabricate long wavelength laser structures on other substrates, especially GaAs. The manufacturing costs of GaAs-based components are lower and the processing techniques are well developed. In 1996 a novel quaternary material GaInAsN was proposed which could avoid several problems with the existing technology of long wavelength lasers. In this book, several leaders in the field of dilute nitrides will cover the growth and processing, experimental characterization, theoretical understanding, and device design and fabrication of this recently developed class of semiconductor alloys. They will review their current status of research and development. Dilute Nitrides (III-N-V) Semiconductors: Physics and Technology organises the most current available data, providing a ready source of information on a wide range of topics, making this book essential reading for all post graduate students, researchers and practitioners in the fields of Semiconductors and Optoelectronics - Contains full account of the advances made in the dilute nitrides, providing an excellent starting point for workers entering the field - Gives the reader easier access and better evaluation of future trends, conveying important results and current ideas - Includes a generous list of references at the end of each chapter, providing a useful reference to the III-V-N based semiconductors research community
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Magnetic Fields In Semiconductor Physics Proceedings Of The 16th International Conference written by Yong-jie Wang and published by World Scientific. This book was released on 2005-05-03 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume covers the latest research on high magnetic fields in semiconductor physics presented at the 16th International Conference (SemiMag 16), held in Tallahassee, Florida, August 2-8, 2004.The book features papers from more than 130 participants including the work of the foremost experts in the fields.Much of the most cutting-edge research is covered by the contributions as well as a special focused session on the recently discovered microwave-induced zero resistance effect.
