Vapor Crystal Growth Technology Development: Application to Cadmium Telluride

Vapor Crystal Growth Technology Development: Application to Cadmium Telluride PDF Author: Franz Rosenberger
Publisher:
ISBN:
Category : Crystal growth
Languages : en
Pages : 58

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Vapor Crystal Growth Technology Development: Application to Cadmium Telluride

Vapor Crystal Growth Technology Development: Application to Cadmium Telluride PDF Author: Franz Rosenberger
Publisher:
ISBN:
Category : Crystal growth
Languages : en
Pages : 58

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Book Description


Vapor Crystal Growth Technology Development

Vapor Crystal Growth Technology Development PDF Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781730736216
Category :
Languages : en
Pages : 56

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Book Description
Growth of bulk crystals by physical vapor transport was developed and applied to cadmium telluride. The technology makes use of effusive ampoules, in which part of the vapor contents escapes to a vacuum shroud through defined leaks during the growth process. This approach has the advantage over traditional sealed ampoule techniques that impurity vapors and excess vapor constituents are continuously removed from the vicinity of the growing crystal. Thus, growth rates are obtained routinely at magnitudes that are rather difficult to achieve in closed ampoules. Other advantages of this effusive ampoule physical vapor transport (EAPVT) technique include the predetermination of transport rates based on simple fluid dynamics and engineering considerations, and the growth of the crystal from close to congruent vapors, which largely alleviates the compositional nonuniformities resulting from buoyancy driven convective transport. After concisely reviewing earlier work on improving transport rates, nucleation control, and minimization of crystal wall interactions in vapor crystal growth, a detail account is given of the largely computer controlled EAPVT experimentation. Rosenberger, Franz and Banish, Michael and Duval, Walter M. B. Glenn Research Center...

Crystal Growth Technology

Crystal Growth Technology PDF Author: Kullaiah Byrappa
Publisher: Elsevier
ISBN: 0815516800
Category : Science
Languages : en
Pages : 613

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Book Description
Crystals are the unacknowledged pillars of modern technology. The modern technological developments depend greatly on the availability of suitable single crystals, whether it is for lasers, semiconductors, magnetic devices, optical devices, superconductors, telecommunication, etc. In spite of great technological advancements in the recent years, we are still in the early stage with respect to the growth of several important crystals such as diamond, silicon carbide, PZT, gallium nitride, and so on. Unless the science of growing these crystals is understood precisely, it is impossible to grow them as large single crystals to be applied in modern industry. This book deals with almost all the modern crystal growth techniques that have been adopted, including appropriate case studies. Since there has been no other book published to cover the subject after the Handbook of Crystal Growth, Eds. DTJ Hurle, published during 1993-1995, this book will fill the existing gap for its readers.The book begins with ""Growth Histories of Mineral Crystals"" by the most senior expert in this field, Professor Ichiro Sunagawa. The next chapter reviews recent developments in the theory of crystal growth, which is equally important before moving on to actual techniques. After the first two fundamental chapters, the book covers other topics like the recent progress in quartz growth, diamond growth, silicon carbide single crystals, PZT crystals, nonlinear optical crystals, solid state laser crystals, gemstones, high melting oxides like lithium niobates, hydroxyapatite, GaAs by molecular beam epitaxy, superconducting crystals, morphology control, and more. For the first time, the crystal growth modeling has been discussed in detail with reference to PZT and SiC crystals.

Crystal Growth Technology

Crystal Growth Technology PDF Author: Hans J. Scheel
Publisher: John Wiley & Sons
ISBN: 0470491108
Category : Science
Languages : en
Pages : 695

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Book Description
This volume deals with the technologies of crystal fabrication, of crystal machining, and of epilayer production and is the first book on industrial and scientific aspects of crystal and layer production. The major industrial crystals are treated: Si, GaAs, GaP, InP, CdTe, sapphire, oxide and halide scintillator crystals, crystals for optical, piezoelectric and microwave applications and more. Contains 29 contributions from leading crystal technologists covering the following topics: * General aspects of crystal growth technology * Silicon * Compound semiconductors * Oxides and halides * Crystal machining * Epitaxy and layer deposition Scientific and technological problems of production and machining of industrial crystals are discussed by top experts, most of them from the major growth industries and crystal growth centers. In addition, it will be useful for the users of crystals, for teachers and graduate students in materials sciences, in electronic and other functional materials, chemical and metallurgical engineering, micro-and optoelectronics including nanotechnology, mechanical engineering and precision-machining, microtechnology, and in solid-state sciences.

Handbook of Crystal Growth

Handbook of Crystal Growth PDF Author: Tom Kuech
Publisher: Elsevier
ISBN: 0444633057
Category : Science
Languages : en
Pages : 1384

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Book Description
Volume IIIA Basic TechniquesHandbook of Crystal Growth, Second Edition Volume IIIA (Basic Techniques), edited by chemical and biological engineering expert Thomas F. Kuech, presents the underpinning science and technology associated with epitaxial growth as well as highlighting many of the chief and burgeoning areas for epitaxial growth. Volume IIIA focuses on major growth techniques which are used both in the scientific investigation of crystal growth processes and commercial development of advanced epitaxial structures. Techniques based on vacuum deposition, vapor phase epitaxy, and liquid and solid phase epitaxy are presented along with new techniques for the development of three-dimensional nano-and micro-structures.Volume IIIB Materials, Processes, and TechnologyHandbook of Crystal Growth, Second Edition Volume IIIB (Materials, Processes, and Technology), edited by chemical and biological engineering expert Thomas F. Kuech, describes both specific techniques for epitaxial growth as well as an array of materials-specific growth processes. The volume begins by presenting variations on epitaxial growth process where the kinetic processes are used to develop new types of materials at low temperatures. Optical and physical characterizations of epitaxial films are discussed for both in situ and exit to characterization of epitaxial materials. The remainder of the volume presents both the epitaxial growth processes associated with key technology materials as well as unique structures such as monolayer and two dimensional materials.Volume IIIA Basic Techniques - Provides an introduction to the chief epitaxial growth processes and the underpinning scientific concepts used to understand and develop new processes. - Presents new techniques and technologies for the development of three-dimensional structures such as quantum dots, nano-wires, rods and patterned growth - Introduces and utilizes basic concepts of thermodynamics, transport, and a wide cross-section of kinetic processes which form the atomic level text of growth process Volume IIIB Materials, Processes, and Technology - Describes atomic level epitaxial deposition and other low temperature growth techniques - Presents both the development of thermal and lattice mismatched streams as the techniques used to characterize the structural properties of these materials - Presents in-depth discussion of the epitaxial growth techniques associated with silicone silicone-based materials, compound semiconductors, semiconducting nitrides, and refractory materials

Technology of Gallium Nitride Crystal Growth

Technology of Gallium Nitride Crystal Growth PDF Author: Dirk Ehrentraut
Publisher: Springer Science & Business Media
ISBN: 3642048307
Category : Science
Languages : en
Pages : 337

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Book Description
This book discusses the important technological aspects of the growth of GaN single crystals by HVPE, MOCVD, ammonothermal and flux methods for the purpose of free-standing GaN wafer production.

Crystal Growth

Crystal Growth PDF Author: Brian R. Pamplin
Publisher: Elsevier
ISBN: 1483161463
Category : Science
Languages : en
Pages : 630

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Book Description
Crystal Growth, Second Edition deals with crystal growth methods and the relationships between them. The chemical physics of crystal growth is discussed, along with solid growth techniques such as annealing, sintering, and hot pressing; melt growth techniques such as normal freezing, cooled seed method, crystal pulling, and zone melting; solution growth methods; and vapor phase growth. This book is comprised of 15 chapters and opens with a bibliography of books and source material, highlighted by a classification of crystal growth techniques. The following chapters focus on the molecular state of a crystal when in equilibrium with respect to growth or dissolution; the fundamentals of classical and modern hydrodynamics as applied to crystal growth processes; creation, control, and measurement of the environment in which a crystal with desired properties can grow; and growth processes where transport occurs through the vapor phase. The reader is also introduced to crystal growth with molecular beam epitaxy; crystal pulling as a crystal growth method; and zone refining and its applications. This monograph will be of interest to physicists and crystallographers.

Crystal Growth Technology

Crystal Growth Technology PDF Author: Hans J. Scheel
Publisher: John Wiley & Sons
ISBN: 3527632891
Category : Technology & Engineering
Languages : en
Pages : 367

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Book Description
Semiconductors and dielectrics are two essential materials found in cell phones and computers, for example, and both are manufactured by growing crystals. Edited by the organizers of the International Workshop on Crystal Growth Technology, this ready reference is essential reading for materials scientists, chemists, physicists, computer hardware manufacturers, engineers, and those working in the chemical and semiconductor industries. They have assembled an international team of experts who present the current challenges, latest methods and new applications for producing these materials necessary for the electronics industry using bulk crystal growth technology. From the contents: * General aspects of crystal growth technology * Compound semiconductors * Halides and oxides * Crystal growth for sustaining energy * Crystal machining

Crystal Growth Technology

Crystal Growth Technology PDF Author: K. Byrappa
Publisher: Springer Science & Business Media
ISBN: 9783540003670
Category : Science
Languages : en
Pages : 618

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Book Description
Crystals are the unacknowledged pillars of modern technology. The modern technological developments depend greatly on the availability of suitable single crystals, whether it is for lasers, semiconductors, magnetic devices, optical devices, superconductors, telecommunication, etc. In spite of great technological advancements in the recent years, we are still in the early stage with respect to the growth of several important crystals such as diamond, silicon carbide, PZT, gallium nitride, and so on. Unless the science of growing these crystals is understood precisely, it is impossible to grow them as large single crystals to be applied in modern industry. This book deals with almost all the modern crystal growth techniques that have been adopted, including appropriate case studies. Since there has been no other book published to cover the subject after the Handbook of Crystal Growth, Eds. DTJ Hurle, published during 1993-1995, this book will fill the existing gap for its readers. The book begins with "Growth Histories of Mineral Crystals" by the most senior expert in this field, Professor Ichiro Sunagawa. The next chapter reviews recent developments in the theory of crystal growth, which is equally important before moving on to actual techniques. After the first two fundamental chapters, the book covers other topics like the recent progress in quartz growth, diamond growth, silicon carbide single crystals, PZT crystals, nonlinear optical crystals, solid state laser crystals, gemstones, high melting oxides like lithium niobates, hydroxyapatite, GaAs by molecular beam epitaxy, superconducting crystals, morphology control, and more. For the first time, the crystal growth modeling has been discussed in detail with reference to PZT and SiC crystals.

50 Years Progress in Crystal Growth

50 Years Progress in Crystal Growth PDF Author: Robert Feigelson
Publisher: Elsevier
ISBN: 0080489931
Category : Science
Languages : en
Pages : 269

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Book Description
There is no question that the field of solid state electronics, which essentially began with work at Bell laboratories just after World War II, has had a profound impact on today's Society. What is not nearly so widely known is that advances in the art and science of crystal growth underpin this technology. Single crystals, once valued only for their beauty, are now found, in one form or another in most electronic, optoelectronic and numerous optical devices. These devices, in turn, have permeated almost every home and village throughout the world. In fact it is hard to imagine what our electronics industry, much less our entire civilization, would have been like if crystal growth scientists and engineers were unable to produce the large, defect free crystals required by device designers. This book brings together two sets of related articles describing advances made in crystal growth science and technology since World War II. One set is from the proceedings of a Symposium held in August 2002 to celebrate 50 years of progress in the field of crystal growth. The second contains articles previously published in the newsletter of the American Association for Crystal Growth in a series called "Milestones in Crystal Growth".The first section of this book contains several articles which describe some of the early history of crystal growth prior to the electronics revolution, and upon which modern crystal growth science and technology is based. This is followed by a special article by Prof. Sunagawa which provides some insight into how the successful Japanese crystal growth industry developed. The next section deals with crystal growth fundamentals including concepts of solute distribution, interface kinetics, constitutional supercooling, morphological stability and the growth of dendrites. The following section describes the growth of crystals from melts and solutions, while the final part involves thin film growth by MBE and OMVPE.These articles were written by some of the most famous theorists and crystal growers working in the field. They will provide future research workers with valuable insight into how these pioneering discoveries were made, and show how their own research and future devices will be based upon these developments.·Articles written by some of the most famous theorists and crystal growers working in the field·Valuable insight into how pioneering discoveries were made.·Show how their own research and future devices will be based upon these developments