Few Electron Lateral Resonant Tunneling Semiconductor Devices
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Few Electron Lateral Resonant Tunneling Semiconductor Devices
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Author :
language : en
Publisher:
Release Date : 1991
Few Electron Lateral Resonant Tunneling Semiconductor Devices written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
The effort here included design, modeling, fabrication, and characterization of lateral resonant tunneling and quantum point contact structures. Also included was a theoretical investigation of open quantum systems driven far from equilibrium, with emphasis on appropriate boundary conditions for solution of such systems. Accomplishments under this contract include the publication in Reviews of Modern Physics of the results of this foundational study, as well as the development of a graphics-oriented program for the computation and display of two-dimensional self-consistent energy band diagrams. The first lateral resonant tunneling transistors to exhibit both negative differential conductance and negative transconductance were demonstrated. The eigenstates of finite superlattices driven below the Stark localization threshold were also observed.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
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.
Nanomaterials And Environmental Biotechnology
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Author : Indu Bhushan
language : en
Publisher: Springer Nature
Release Date : 2020-02-22
Nanomaterials And Environmental Biotechnology written by Indu Bhushan and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-22 with Science categories.
Nanotechnology is considered as one of the emerging fields of science. It has applications in different biological and technological fields which deal with the science of materials at nanoscale (10-9). On the other hand, biotechnology is another field that deals with contemporary challenges. Nanobiotechnology fills the gap between these two fields. It merges physical, chemical, and biological principles in a single realm. This combination opens up new possibilities. At nanoscale dimensions, it creates precise nanocrystals and nanoshells. Integrated nanomaterials are used with modified surface layers for compatibility with living systems, improved dissolution in water, or biorecognition leading to enhanced end results in biotechnological systems. These nanoparticles can also be hybridized with additional biocompatible substances in order to amend their qualities to inculcate novel utilities. Nanobiotechnology is used in bioconjugate chemistry by coalescing up the functionality of non-organically obtained molecular components and biological molecules in order to veil the immunogenic moieties for targeted drug delivery, bioimaging and biosensing. This book blends the science of biology, medicine, bioinorganic chemistry, bioorganic chemistry, material and physical sciences, biomedical engineering, electrical, mechanical, and chemical science to present a comprehensive range of advancements. The development of nano-based materials has made for a greater understanding of their characterization, using techniques such as transmission electron microscope, FTIR, X-ray diffraction, scanning electron microscope EDX, and so on. This volume also highlights uses in environmental remediation, environmental biosensors and environmental protection. It also emphasizes the significance of nanobiotechnology to a series of medical applications viz., diagnostics, and therapeutics stem cell technology, tissue engineering enzyme engineering, drug development and delivery. In addition this book also offers a distinctive understanding of nanobiotechnology from researchers and educators and gives a comprehensive facility for future developments and current applications of nanobiotechnology.
Electronic Properties Of Multilayers And Low Dimensional Semiconductor Structures
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Author : J.M. Chamberlain
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Electronic Properties Of Multilayers And Low Dimensional Semiconductor Structures written by J.M. Chamberlain and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This Advanced Study Institute on the Electronic Properties of Multilayers and Low Dimensional Semiconductor Structures focussed on several of the most active areas in modern semiconductor physics. These included resonant tunnelling and superlattice phenomena and the topics of ballistic transport, quantised conductance and anomalous magnetoresistance effects in laterally gated two-dimensional electron systems. Although the main emphasis was on fundamental physics, a series of supporting lectures described the underlying technology (Molecular Beam Epitaxy, Metallo-Organic Chemical Vapour Deposition, Electron Beam Lithography and other advanced processing technologies). Actual and potential applications of low dimensional structures in optoelectronic and high frequency devices were also discussed. The ASI took the form of a series of lectures of about fifty minutes' duration which were given by senior researchers from a wide range of countries. Most of the lectures are recorded in these Proceedings. The younger members of the Institute made the predominant contribution to the discussion sessions following each lecture and, in addition, provided most of the fifty-five papers that were presented in two lively poster sessions. The ASl emphasised the impressive way in which this research field has developed through the fruitful interaction of theory, experiment and semiconductor device technology. Many of the talks demonstrated both the effectiveness and limitations of semiclassical concepts in describing the quantum phenomena exhibited by electrons in low dimensional structures.
Research On Gaas Quantum Coupled Structures That Can Be Used As Electron Devices
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Author :
language : en
Publisher:
Release Date : 1989
Research On Gaas Quantum Coupled Structures That Can Be Used As Electron Devices written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
The objective of this program was to conduct a theoretical and experimental investigation of the physics of quantum coupled semiconductor structures, with the ultimate goal of developing an integrated circuit technology based on quantum coupled devices. The prototype structure on which both the theoretical and experimental efforts were based was the quantum well resonant tunneling diode. The theoretical work answered questions concerning the dc and small signal ac behavior of this device and some very fundamental questions concerning the theory of open quantum system. The theory of open system is a necessary part of the development of quantum device technology because all electron devices are open systems. The experimental part of the program focused on two areas. The first on the behavior of quantum dot structures, which are resonant-tunneling diodes whose lateral dimensions (perpendicular to the direction of current flow) have been reduced to quantum scales by microlithography and etching. The spectroscopy of these structures is explained as revealed in their I-V characteristics. The second area of investigation compared the I-V curves of structurally well -characterized resonant-tunneling diodes to theoretical models. The resonant peak voltage sensitively depended on the precise details of the epitaxial structure. The fitting of the theoretical model to the experimental I-V curve appears to be a more precise way to determine these details than any existing direct technique.
Physics Of Semiconductors The Proceedings Of The Xxi International Conference In 2 Volumes
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Author : Ping Jiang
language : en
Publisher: World Scientific
Release Date : 1993-03-31
Physics Of Semiconductors The Proceedings Of The Xxi International Conference In 2 Volumes written by Ping Jiang and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-03-31 with categories.
The 21st conference proceedings continue the tradition of the ICPS series. The proceedings cover all aspects of semiconductor physics, including those related to materials, processing and devices. Plenary and invited speakers address areas of major interest.
Physics And Applications Of Semiconductor Quantum Structures
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Author : T. Yao
language : en
Publisher: CRC Press
Release Date : 2001-01-01
Physics And Applications Of Semiconductor Quantum Structures written by T. Yao and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-01-01 with Science categories.
Written by international experts, Physics and Applications of Semiconductor Quantum Structures covers the most important recent advances in the field. Beginning with a review of the evolution of semiconductor superlattices and quantum nanostructures, the book explores fabrication and characterization techniques, transport, optical, and spin-depende
Electron Transport In Nanostructures And Mesoscopic Devices
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Author : Thierry Ouisse
language : en
Publisher: John Wiley & Sons
Release Date : 2013-03-01
Electron Transport In Nanostructures And Mesoscopic Devices written by Thierry Ouisse and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-01 with Technology & Engineering categories.
This book introduces researchers and students to the physical principles which govern the operation of solid-state devices whose overall length is smaller than the electron mean free path. In quantum systems such as these, electron wave behavior prevails, and transport properties must be assessed by calculating transmission amplitudes rather than microscopic conductivity. Emphasis is placed on detailing the physical laws that apply under these circumstances, and on giving a clear account of the most important phenomena. The coverage is comprehensive, with mathematics and theoretical material systematically kept at the most accessible level. The various physical effects are clearly differentiated, ranging from transmission formalism to the Coulomb blockade effect and current noise fluctuations. Practical exercises and solutions have also been included to facilitate the reader's understanding.
Nasa Tech Briefs
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Author :
language : en
Publisher:
Release Date : 2007
Nasa Tech Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Technology categories.
Microwave Physics And Technique Proceedings Of The Sixth International School
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Author : A Y Spasov
language : en
Publisher: World Scientific
Release Date : 1990-03-01
Microwave Physics And Technique Proceedings Of The Sixth International School written by A Y Spasov and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-03-01 with categories.