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Experimental Investigations Of Transport And Optical Properties Of 3 5 Quantum Well Structures Grown Via Molecular Beam Epitaxy Under Optimal Growth Conditions
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Book Synopsis Experimental Investigations of Transport and Optical Properties of 3-5 Quantum Well Structures Grown Via Molecular Beam Epitaxy Under Optimal Growth Conditions by :
Download or read book Experimental Investigations of Transport and Optical Properties of 3-5 Quantum Well Structures Grown Via Molecular Beam Epitaxy Under Optimal Growth Conditions written by and published by . This book was released on 1989 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zero field mobilities in GaAs/A1(x)Ga(1-x)As(100) inverted HEMT structures in excess of 100,000 sq cm/V-Sec at LN2 temperatures have been achieved . The possibility of high mobilities in square single quantum wells with modulation doping on the inverted interface side only is demonstrated. Photoluminescences linewidth dependence on the square single quantum well width shows inverse proportion rather than the inverse cubic proportion behavior expected from the popularly used notion of well width fluctuations. The observed behavior is shown to be consistent with fluctuations in the band edge discontinuity (i.e. well depth) arising from in-plane fluctuations in the alloy composition of the A1xGa(1-x)As barrier layers in high quality structures. Influence of an electric field across single and coupled-double quantum wells on their optical characteristics is examined theoretically and through photoluminescence, photocurrent, electroreflectance, photoreflectance and Photovoltage measurements. Exploiting growth conditions controlled thermodynamic and kinetic effects on facet formation and inter-facet migration, a unique in-situ method for realization of quantum wire and quantum box structures without the need for lithography or direct-write patterning on such small dimensions is demonstrated. Finally, some initial results on resonant tunneling diodes are reported.
Book Synopsis Experimental Investigations of Transport and Optical Properties of III-V Quantum Well Structures Grown Via Molecular Beam Epitaxy Under Optimal Growth Conditions by :
Download or read book Experimental Investigations of Transport and Optical Properties of III-V Quantum Well Structures Grown Via Molecular Beam Epitaxy Under Optimal Growth Conditions written by and published by . This book was released on 1989 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of experimental studies have been conducted to explore; (1) the optimization of transport and optical properties of quantum structures via control of the growth kinetics during molecular beam epitaxy and (2) relation of these properties with the structure design. As a result of a combined approach of material science, physics, and device engineering research, quantum structures with the best properties to-date, such as the resonant tunnelling diodes with high peak to valley ratio and large peak current density, inverted heterojunction structures with ultra-low density and high mobility suitable for the basic study of quantum Wigner solid states, etc., have been grown. Carrier scattering induced by interface roughening and interface trapped impurity and exciton scattering induced by band edge discontinuity fluctuations and alloy disorder have been demonstrated. A strong phenomenon of double resonant Raman scattering and optical phonon-electron resonance mixing is observed in specially designed structures. The possibility of in-situ fabrication of laterally confined nano-structures via growth on pre-patterned substrates has been explored. Additionally, benefits of using external beams to control the growth kinetics have been investigated. All these results are helpful towards a better understanding of the nature of quantum structures. They also provide a strong basis for the design and fabrication of some novel device structures in the future.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Molecular Beam Epitaxy by : Mohamed Henini
Download or read book Molecular Beam Epitaxy written by Mohamed Henini and published by Newnes. This book was released on 2012-12-31 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multi-contributor handbook discusses Molecular Beam Epitaxy (MBE), an epitaxial deposition technique which involves laying down layers of materials with atomic thicknesses on to substrates. It summarizes MBE research and application in epitaxial growth with close discussion and a ‘how to’ on processing molecular or atomic beams that occur on a surface of a heated crystalline substrate in a vacuum.MBE has expanded in importance over the past thirty years (in terms of unique authors, papers and conferences) from a pure research domain into commercial applications (prototype device structures and more at the advanced research stage). MBE is important because it enables new device phenomena and facilitates the production of multiple layered structures with extremely fine dimensional and compositional control. The techniques can be deployed wherever precise thin-film devices with enhanced and unique properties for computing, optics or photonics are required. This book covers the advances made by MBE both in research and mass production of electronic and optoelectronic devices. It includes new semiconductor materials, new device structures which are commercially available, and many more which are at the advanced research stage. Condenses fundamental science of MBE into a modern reference, speeding up literature review Discusses new materials, novel applications and new device structures, grounding current commercial applications with modern understanding in industry and research Coverage of MBE as mass production epitaxial technology enhances processing efficiency and throughput for semiconductor industry and nanostructured semiconductor materials research community
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Annual Report 1989-90 by : New Brunswick. Department of Transportation
Download or read book Annual Report 1989-90 written by New Brunswick. Department of Transportation and published by . This book was released on 1991 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt: General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.
Book Synopsis Frontiers in Optics and Photonics by : Federico Capasso
Download or read book Frontiers in Optics and Photonics written by Federico Capasso and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-06-08 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a cutting-edge research overview on the latest developments in the field of Optics and Photonics. All chapters are authored by the pioneers in their field and will cover the developments in Quantum Photonics, Optical properties of 2D Materials, Optical Sensors, Organic Opto-electronics, Nanophotonics, Metamaterials, Plasmonics, Quantum Cascade lasers, LEDs, Biophotonics and biomedical photonics and spectroscopy.
Book Synopsis Semiconductor Materials for Optoelectronics and LTMBE Materials by : J.P. Hirtz
Download or read book Semiconductor Materials for Optoelectronics and LTMBE Materials written by J.P. Hirtz and published by Elsevier. This book was released on 2016-07-29 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: These three day symposia were designed to provide a link between specialists from university or industry who work in different fields of semiconductor optoelectronics. Symposium A dealt with topics including: epitaxial growth of III-V, II-VI, IV-VI, Si-based structures; selective-area, localized and non-planar epitaxy, shadow-mask epitaxy; bulk and new optoelectronic materials; polymers for optoelectronics. Symposium B dealt with III-V epitaxial layers grown by low temperature molecular beam epitaxy, a subject which has undergone rapid development in the last three years.
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ceramic Abstracts written by and published by . This book was released on 2000 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductors written by and published by . This book was released on 2005 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book JJAP written by and published by . This book was released on 1999 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Japanese Journal of Applied Physics by :
Download or read book Japanese Journal of Applied Physics written by and published by . This book was released on 1999 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Terahertz Devices and Applications by : Dimitris Pavlidis
Download or read book Fundamentals of Terahertz Devices and Applications written by Dimitris Pavlidis and published by John Wiley & Sons. This book was released on 2021-07-19 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative and comprehensive guide to the devices and applications of Terahertz technology Terahertz (THz) technology relates to applications that span in frequency from a few hundred GHz to more than 1000 GHz. Fundamentals of Terahertz Devices and Applications offers a comprehensive review of the devices and applications of Terahertz technology. With contributions from a range of experts on the topic, this book contains in a single volume an inclusive review of THz devices for signal generation, detection and treatment. Fundamentals of Terahertz Devices and Applications offers an exploration and addresses key categories and aspects of Terahertz Technology such as: sources, detectors, transmission, electronic considerations and applications, optical (photonic) considerations and applications. Worked examples—based on the contributors' extensive experience— highlight the chapter material presented. The text is designed for use by novices and professionals who want a better understanding of device operation and use, and is suitable for instructional purposes This important book: Offers the most relevant up-to-date research information and insight into the future developments in the technology Addresses a wide-range of categories and aspects of Terahertz technology Includes material to support courses on Terahertz Technology and more Contains illustrative worked examples Written for researchers, students, and professional engineers, Fundamentals of Terahertz Devices and Applications offers an in-depth exploration of the topic that is designed for both novices and professionals and can be adopted for instructional purposes.
