Spontaneous Ordering In Semiconductor Alloys

Author: Angelo Mascarenhas
Editor: Springer Science & Business Media
ISBN: 146150631X
Size: 12,81 MB
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The phenomenonofspontaneous ordering in semiconductoralloys, which can be categorized as a self-organized process, is observed to occur sponta neously during epitaxial growth of certain ternary alloy semiconductors and results in a modification of their structural, electronic, and optical properties. There has been a great dealofinterest in learning how to control this phenome non so that it may be used for tailoring desirable electronic and optical properties. There has been even greater interest in exploiting the phenomenon for its unique ability in providing an experimental environment of controlled alloy statistical fluctuations. As such, itimpacts areasofsemiconductorscience and technology related to the materials science ofepitaxial growth, statistical mechanics, and electronic structure of alloys and electronic and photonic devices. During the past two decades, significant progress has been made toward understanding the mechanisms that drive this phenomenon and the changes in physical properties that result from it. A variety of experimental techniques have been used to probe the phenomenon and several attempts made atproviding theoretical models both for the ordering mechanisms as well as electronic structure changes. The various chapters of this book provide a detailed account of these efforts during the past decade. The first chapter provides an elaborate account of the phenomenon, with an excellent perspective of the structural and elec tronic modifications itinduces.

Theoretical Modelling Of Semiconductor Surfaces

Author:
Editor:
ISBN: 9814496758
Size: 15,19 MB
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Mercury Cadmium Telluride

Author: Peter Capper
Editor: John Wiley & Sons
ISBN: 1119957575
Size: 16,37 MB
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Mercury cadmium telluride (MCT) is the third most well-regarded semiconductor after silicon and gallium arsenide and is the material of choice for use in infrared sensing and imaging. The reason for this is that MCT can be ‘tuned’ to the desired IR wavelength by varying the cadmium concentration. Mercury Cadmium Telluride: Growth, Properties and Applications provides both an introduction for newcomers, and a comprehensive review of this fascinating material. Part One discusses the history and current status of both bulk and epitaxial growth techniques, Part Two is concerned with the wide range of properties of MCT, and Part Three covers the various device types that have been developed using MCT. Each chapter opens with some historical background and theory before presenting current research. Coverage includes: Bulk growth and properties of MCT and CdZnTe for MCT epitaxial growth Liquid phase epitaxy (LPE) growth Metal-organic vapour phase epitaxy (MOVPE) Molecular beam epitaxy (MBE) Alternative substrates Mechanical, thermal and optical properties of MCT Defects, diffusion, doping and annealing Dry device processing Photoconductive and photovoltaic detectors Avalanche photodiode detectors Room-temperature IR detectors

Ii Vi Semiconductor Compounds

Author: Mukesh Jain
Editor: World Scientific
ISBN: 9814536830
Size: 12,65 MB
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Contents: X-Ray Characterisation of II-VI Semiconductor Materials (D Gao et al.)Electronic Structure of II-VI Semiconductors and Their Alloys (S-H Wei)Radiative Recombination Processes in Rare Earth Doped II-VI Materials (M Godlewski et al.)Nonlinear Optical Properties of Heavily Doped CdS (U Neukirch)Nanostructures of Broad Gap (II,Mn) VI Semiconductors (W Heimbrodt & O Goede)Co-Based II-VI Semimagnetic Semiconductors (A Twardowski et al.)Photoluminescence and Raman Scattering of ZnSe-ZnTe Strained Layer Superlattices (K Kumazaki)Novel Electronic Processes in Mercury-Based Superlattices (J R Meyer et al.)Strain, Pressure and Piezoelectric Effects in Strained II-VI Superlattices and Heterostructures (E Anastassakia)Electronic Structures of Strained II-VI Superlattices (T Nakayama)Devices and Applications of II-VI Compounds (S Colak)Solar Cells Based on II-VI Semiconductors (H Uda)ZnSe and Its Applications for Blue-Light Laser Diodes (M Pessa & D Ahn)Molecular Beam Epitaxy of HgCdTe for Electro-Optical Infrared Applications (J M A Cortés)and other papers Readership: Condensed matter physicists and electronic engineers. keywords:

Properties Of Semiconductor Alloys

Author: Sadao Adachi
Editor: John Wiley & Sons
ISBN: 9780470744390
Size: 13,20 MB
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The main purpose of this book is to provide a comprehensive treatment of the materials aspects of group-IV, III−V and II−VI semiconductor alloys used in various electronic and optoelectronic devices. The topics covered in this book include the structural, thermal, mechanical, lattice vibronic, electronic, optical and carrier transport properties of such semiconductor alloys. The book reviews not only commonly known alloys (SiGe, AlGaAs, GaInPAs, and ZnCdTe) but also new alloys, such as dilute-carbon alloys (CSiGe, CSiSn, etc.), III−N alloys, dilute-nitride alloys (GaNAs and GaInNAs) and Mg- or Be-based II−VI semiconductor alloys. Finally there is an extensive bibliography included for those who wish to find additional information as well as tabulated values and graphical information on the properties of semiconductor alloys.

Self Organized Processes In Semiconductor Alloys

Author: Angelo Mascarenhas
Editor: Cambridge University Press
ISBN: 9781107414167
Size: 13,75 MB
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This book addresses issues related to the understanding, control and technological application of ordering, spinodal decomposition/composition modulation, clustering, and 3-D nucleation in epitaxially grown semiconductor alloys. By bringing together researchers in the various subfields of epitaxial growth-related instabilities, the interrelations among the subfields and the common aspects of the experimental and theoretical techniques used, are emphasized. Topics include: quantum dots; 3-D islanding and in situ studies; spontaneous ordering; and spontaneous composition modulation.

Infrared Ellipsometry On Semiconductor Layer Structures

Author: Mathias Schubert
Editor: Springer Science & Business Media
ISBN: 9783540232490
Size: 19,66 MB
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The study of semiconductor-layer structures using infrared ellipsometry is a rapidly growing field within optical spectroscopy. This book offers basic insights into the concepts of phonons, plasmons and polaritons, and the infrared dielectric function of semiconductors in layered structures. It describes how strain, composition, and the state of the atomic order within complex layer structures of multinary alloys can be determined from an infrared ellipsometry examination. Special emphasis is given to free-charge-carrier properties, and magneto-optical effects. A broad range of experimental examples are described, including multinary alloys of zincblende and wurtzite structure semiconductor materials, and future applications such as organic layer structures and highly correlated electron systems are proposed.

Self Organized Processes In Semiconductor Heteroepitaxy

Author: Andrew G. Norman
Editor:
ISBN:
Size: 18,36 MB
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This volume contains a compilation of papers presented in Symposium T, Self-Organized Processes in Semiconductor Epitaxy, during the 2003 MRS Fall Meeting in Boston, Massachusetts. It also includes papers presented in joint sessions with Symposium N, Quantum Dots, Nanoparticles, and Nanowires, and Symposium Z, Progress in Compound Semiconductor Materials III-Electronic and Optoelectronic Applications. The goal of the volume is to address issues related to the understanding, control, and applications of several self-organized processes in semiconductor epitaxy, including strain-induced self assembly; clustering, alloy phase separation and compositional modulation; and long- and short-range ordering. Topics include: morphological evolution-patterning and islanding; semiconductor nanostructure; quantum dots-ordering and patterning; III-V self-organized nanostructures; quantum dots and wires-structure, spectroscopy and transport; quantum dots and wires-devices; spins in semiconductor nanostructures; composition modulation; and atomic ordering.

Optical And Quantum Structural Properties Of Semiconductors

Author: Teiji Tsuruta
Editor: Elsevier Science Ltd
ISBN:
Size: 20,23 MB
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In order to further extend progress in the field of optoelectronics, it is of great importance to stimulate the development of novel and sophisticated technologies for material design, control and preparation in not only the typical semiconductors, but also in other semiconductors which have varying characteristics of optoelectronic properties. A comprehensive selection of 43 articles describing the results of work carried out by the members of a project research program is presented in this volume. The objective of this research program was to promote the creation of novel functional materials at atomic or molecular level, on the nature of functionality materials, i.e., metals, semiconductors, ceramics, organic polymers, and their composites or hybridized materials. The aim of this book is to provide a global overview on the scientific and technological information which has been produced by this research project on the design, control and preparation of semiconductor materials for novel optoelectronic devices. The multidisciplinary composition of the chapters will stimulate the cross-fertilization of ideas among workers from different backgrounds in approaching their goals. This volume, together with the companion volumes B and C, which focus on Synthesis and Function Control of Biofunctionality Materials and Synthetic Process and Control of Functionality Materials respectively will serve as a valuable asset to scientists in academic, governmental and industrial institutions, providing insights into newly developing research areas in functionality materials.