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Download or read book Structural Properties of Ge Nanocrystals Embedded InSapphire written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ian David Sharp
Publisher :
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.:/5 (35 download)
Download or read book Structural and Optical Characterization of Ion Beam Synthesized Ge Nanocrystals written by Ian David Sharp and published by . This book was released on 2006 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander Yuryevich Terekhov
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (18 download)
Download or read book Structural Properties of Si-Ge Nanocrystals written by Alexander Yuryevich Terekhov and published by . This book was released on 2006 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Qing Xu
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (35 download)
Download or read book Synthesis and Characterization of Embedded Ge Nanocrystals written by Qing Xu and published by . This book was released on 2006 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sahar Mirzaei
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (144 download)
Download or read book Study the Structural Properties of Ge Nanoparticles Formed by Ion Implantation and Thermal Annealing in Nitride-base Dielectric Matrices written by Sahar Mirzaei and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates the formation of Ge nanoparticles (NPs) in amorphous Si3N4 and SiOxNy by ion implantation and thermal annealing. The structural properties of the NPs were determined using a combination of laboratory and synchrotron based techniques including cross-section transmission electron microscopy (TEM), x-ray diffraction (XRD), Rutherford backscattering spectrometry (RBS), Raman spectroscopy measurements and x-ray absorption spectroscopy (XAS). The motivation for this research is that NPs synthesized from Group IV semiconductors, including Ge, show potential for novel electronic and optoelectronic devices. Ge was chosen as the material for this study, mainly due to its very large bulk exciton Bohr radius (Rb̃ 10 nm) and consequently small R/Rb ratio (where R is the NP radius), which increases the quantum confinement regime for optoelectronic applications. Also, Ge NPs embedded in thin dielectric films have exhibited impressive charge storage capabilities, useful in non-volatile memory (NVM) applications. While many studies have focused on the SiO2 matrix, there have been few experimental studies on the growth of Ge NPs in a silicon nitride and silicon oxynitride matrices. The main focus of this project was on the formation of Ge NPs in different Si3N4-based matrices and examining the short range atomic structure of embedded NPs as function of NP size using extended x-ray absorption fine structure (EXAFS). Specifically, four different matrices have considered: PECVD Si3N4, LPCVD Si3N4, PECVD SiO1.67N0.14 and PECVD SiO1.12N0.37. Size evolution and structural properties of NPs were examined as function of implantation conditions and the host matrix. Ge NPs were formed in plasma enhanced chemical vapour deposition (PECVD) Si3N4. Precipitations occurred for Ge concentrations of ≥6 at.%, which suggests the solubility limits of this order. NP size was influenced by Ge concentration and annealing temperature. NP size increased from 2.4 to 4 nm - for samples annealed at 900oC for 1 hour- when concentration was increased from 9 to 12 at.%. Moreover, as annealing temperature was increased from 700 to 900 oC NP size increased from 3 to 4.5 nm (for 12 at.% Ge samples). In general NP diameters were much small compared to SiO2 matrix due to the N content of the system, low diffusivity and large interfacial energy between Ge atoms and Si3N4-based matrices. Unlike PECVD Si3N4, ion beam synthesis of Ge in LPCVD Si3N4 layers resulted in the formation of SiGe NPs. NP size altered from 2.8 to 3.2 nm for 12 at.% Ge concentration samples after annealing temperature was increased from 700 to 900oC. Also, NP size increased from 2.3 to 3.2 nm for samples annealed at 900oC for 1 hour when Ge concentration was increased from 9 to 12 at.%. Complementary XAS techniques (in particular EXAFS), allowed us a precise and better understanding of the structure of embedded SiGe NPs. Since the lattice difference between Ge and SiGe NPs (less than 4%) could not be distinguished by TEM. A phase transition of the matrix was observed for LPCVD and PECVD Si3N4 matrices after annealing at 1100 oC. This significantly lowered crystallization temperature of un-implanted layers (1600-1800oC). Formation of nanosilicide particles, change of stoichiometry and implantation induced-damage are found to be the most likely causes of crystallization. Ge NPs were formed in SiO1.67N0.14 matrix for different Ge concentrations and annealing temperatures. For Ge concentrations from 9 to 12 at.% annealed at 900oC for 1 hour, NP size increased from 3.7 to 4.5 nm. Also, when annealing temperature was increased from 700 to 900oC NP size increased from 4.1 to 4.5 for 12 at.% Ge concentration. We observed that slight amount of the N in the system had a significant effect on NP size similar to PECVD Si3N4. Unlike other examined systems, cavities were formed near the implanted region in SiO1.12N0.37 matrix for different concentrations and annealing temperatures, which could be correlated to the matrix structure and composition or vacancy events after ion implantation. The size, origin and properties of formed cavities are subjects of future work. No phase transition (or long-range diffusivity of Ge atoms) was observed for SiOxNy matrices after annealing at 1100 oC.
Author : Norio MIURA
Publisher : Springer
ISBN 13 : 9783540417781
Total Pages : 1056 pages
Book Rating : 4.4/5 (177 download)
Download or read book Proceedings of the 25th International Conference on the Physics of Semiconductors Part I written by Norio MIURA and published by Springer. This book was released on 2001-05-17 with total page 1056 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the proceedings of the most important and prestigious conference in the field of semiconductor physics, this book contains the latest information on the progress of semiconductor physics. Almost 1000 contributed papers address the full range of current topics. The special symposium deals with the interface between the fundamentals and device applications and tries to predict the developments in semiconductor physics, semiconductor materials and device applications in the 21st century. A wide range of contributions represent the forefront of academic and industrial research.
Author : Antonella Macagnano
Publisher : MDPI
ISBN 13 : 3039287389
Total Pages : 386 pages
Book Rating : 4.0/5 (392 download)
Download or read book Design and Development of Nanostructured Thin Films written by Antonella Macagnano and published by MDPI. This book was released on 2020-05-13 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their unique size-dependent physicochemical properties, nanostructured thin films are used in a wide range of applications from smart coating and drug delivery to electrocatalysis and highly-sensitive sensors. Depending on the targeted application and the deposition technique, these materials have been designed and developed by tuning their atomic-molecular 2D- and/or 3D-aggregation, thickness, crystallinity, and porosity, having effects on their optical, mechanical, catalytic, and conductive properties. Several open questions remain about the impact of nanomaterial production and use on environment and health. Many efforts are currently being made not only to prevent nanotechnologies and nanomaterials from contributing to environmental pollution but also to design nanomaterials to support, control, and protect the environment. This Special Issue aims to cover the recent advances in designing nanostructured films focusing on environmental issues related to their fabrication processes (e.g., low power and low cost technologies, the use of environmentally friendly solvents), their precursors (e.g., waste-recycled, bio-based, biodegradable, and natural materials), their applications (e.g., controlled release of chemicals, mimicking of natural processes, and clean energy conversion and storage), and their use in monitoring environment pollution (e.g., sensors optically- or electrically-sensitive to pollutants)
Author : Frank Träger
Publisher : Springer Science & Business Media
ISBN 13 : 3642194095
Total Pages : 1704 pages
Book Rating : 4.6/5 (421 download)
Download or read book Springer Handbook of Lasers and Optics written by Frank Träger and published by Springer Science & Business Media. This book was released on 2012-05-05 with total page 1704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition features numerous updates and additions. Especially 4 new chapters on Fiber Optics, Integrated Optics, Frequency Combs and Interferometry reflect the changes since the first edition. In addition, major complete updates for the chapters: Optical Materials and Their Properties, Optical Detectors, Nanooptics, and Optics far Beyond the Diffraction Limit. Features Contains over 1000 two-color illustrations. Includes over 120 comprehensive tables with properties of optical materials and light sources. Emphasizes physical concepts over extensive mathematical derivations. Chapters with summaries, detailed index Delivers a wealth of up-to-date references.
Author : KOJI SUGIOKA.
Publisher :
ISBN 13 : 9783319695372
Total Pages : pages
Book Rating : 4.6/5 (953 download)
Download or read book Handbook of Laser Micro- and Nano-Engineering written by KOJI SUGIOKA. and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook provides a comprehensive review of the entire field of laser micro and nano processing, including not only a detailed introduction to individual laser processing techniques but also the fundamentals of laser-matter interaction and lasers, optics, equipment, diagnostics, as well as monitoring and measurement techniques for laser processing. Consisting of 11 sections, each composed of 4 to 6 chapters written by leading experts in the relevant field. Each main part of the handbook is supervised by its own part editor(s) so that high-quality content as well as completeness are assured. The book provides essential scientific and technical information to researchers and engineers already working in the field as well as students and young scientists planning to work in the area in the future. Lasers found application in materials processing practically since their invention in 1960, and are currently used widely in manufacturing. The main driving force behind this fact is that the lasers can provide unique solutions in material processing with high quality, high efficiency, high flexibility, high resolution, versatility and low environmental load. Macro-processing based on thermal process using infrared lasers such as CO2 lasers has been the mainstream in the early stages, while research and development of micro- and nano-processing are becoming increasingly more active as short wavelength and/or short pulse width lasers have been developed. In particular, recent advances in ultrafast lasers have opened up a new avenue to laser material processing due to the capabilities of ultrahigh precision micro- and nanofabrication of diverse materials. This handbook is the first book covering the basics, the state-of-the-art and important applications of the dynamic and rapidly expanding discipline of laser micro- and nanoengineering. This comprehensive source makes readers familiar with a broad spectrum of approaches to solve all relevant problems in science and technology. This handbook is the ultimate desk reference for all people working in the field.
Author : Zhongmin Yang
Publisher : Springer
ISBN 13 : 9811360804
Total Pages : 170 pages
Book Rating : 4.8/5 (113 download)
Download or read book Single-Frequency Fiber Lasers written by Zhongmin Yang and published by Springer. This book was released on 2019-02-19 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a contemporary overview of the technologies of single-frequency fiber lasers. The development of single-frequency fiber lasers is one of the most significant achievements in the field of laser photonics over the past two decades. Owing to the crucial demands of a laser sources with highly stable single-frequency operation, narrow linewidth, low noise, scalable to high output power, compact and robustness structure, fiber lasers have been intensively studied since its introduction to the single-frequency laser community and they still continuously proceed to trigger the emergence of new technologies and applications. This book systematically demonstrates the single-frequency fiber laser technologies from fundamental principles to state-of-the-art progress. Details of selected typical applications of single-frequency fiber lasers are also given and discussed. The reader will acquire a good knowledge of the current situation within this important field.
Author : Frank C. Hawthorne
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501508970
Total Pages : 716 pages
Book Rating : 4.5/5 (15 download)
Download or read book Spectroscopic Methods in Mineralogy and Geology written by Frank C. Hawthorne and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 18 of Reviews in Mineralogy provides a general introduction to the use of spectroscopic techniques in Earth Sciences. It gives an Introduction To Spectroscopic Methods and covers Symmetry, Group Theory And Quantum Mechanics; Spectrum-Fitting Methods; Infrared And Raman Spectroscopy; Inelastic Neutron Scattering; Vibrational Spectroscopy Of Hydrous Components; Optical Spectroscopy; Mossbauer Spectroscopy; MAS NMR Spectroscopy Of Minerals And Glasses; NMR Spectroscopy And Dynamic Processes In Mineralogy And Geochemistry; X-Ray Absorption Spectroscopy: Applications In Mineralogy ind Geochemistry; Electron Paramagnetic Resonance; Auger Electron And X-Ray Photelectron Spectroscopies and Luminescence, X-Ray Emission and New Spectroscopies. The authors of this volume presented a short course, entitled "Spectroscopic Methods in Mineralogy and Geology", May 13-15, 1988, in Hunt Valley, Maryland.
Author : Florent Calvo
Publisher : Newnes
ISBN 13 : 0123946166
Total Pages : 433 pages
Book Rating : 4.1/5 (239 download)
Download or read book Nanoalloys written by Florent Calvo and published by Newnes. This book was released on 2013-03-12 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoalloys: From Fundamentals to Emergent Applications presents and discusses the major topics related to nanoalloys at a time when the literature on the subject remains scarce. Particular attention is paid to experimental and theoretical aspects under the form of broad reviews covering the most recent developments. The book is organized into 11 chapters covering the most fundamental aspects of nanoalloys related to their synthesis and characterization, as well as their theoretical study. Aspects related to their thermodynamics and kinetics are covered as well. The coverage then moves to more specific topics, including optics, magnetism and catalysis, and finally to biomedical applications and the technologically relevant issue of self-assembly. With no current single reference source on the subject, the work is invaluable for researchers as the nanoscience field moves swiftly to full monetization. Encapsulates physical science of structure, properties, size, composition and ordering at nanoscale, aiding synthesis of experimentation and modelling Multi-expert and interdisciplinary perspectives on growth, synthesis and characterization of bimetallic clusters and particulates supports expansion of your current research activity into applications Synthesizes concepts and draws links between fundamental metallurgy and cutting edge nanoscience, aiding interdisciplinary research activity
Author : Audrius Dubietis
Publisher : Springer
ISBN 13 : 3030149951
Total Pages : 125 pages
Book Rating : 4.0/5 (31 download)
Download or read book Ultrafast Supercontinuum Generation in Transparent Solid-State Media written by Audrius Dubietis and published by Springer. This book was released on 2019-03-30 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the underlying physical picture and an overview of the state of the art of femtosecond supercontinuum generation in various transparent solid-state media, ranging from wide-bandgap dielectrics to semiconductor materials, and across various parts of the optical spectrum, from the ultraviolet to the mid-infrared. A particular emphasis is placed on the most recent experimental developments: multioctave supercontinuum generation with pumping in the mid-infrared spectral range, spectral control, power and energy scaling of broadband radiation and the development of simple, flexible and robust pulse compression techniques, which deliver few optical cycle pulses and which could be readily implemented in a variety of modern ultrafast laser systems. The expected audience includes graduate students, professionals and scientists working in the field of laser-matter interactions and ultrafast nonlinear optics.
Author : David O. Olawale
Publisher : Springer
ISBN 13 : 3319388428
Total Pages : 454 pages
Book Rating : 4.3/5 (193 download)
Download or read book Triboluminescence written by David O. Olawale and published by Springer. This book was released on 2016-07-19 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book expounds on progress made over the last 35 years in the theory, synthesis, and application of triboluminescence for creating smart structures. It presents in detail the research into utilization of the triboluminescent properties of certain crystals as new sensor systems for smart engineering structures, as well as triboluminescence-based sensor systems that have the potential to enable wireless, in-situ, real time and distributed (WIRD) structural health monitoring of composite structures. The sensor component of any structural health monitoring (SHM) technology — measures the effects of the external load/event and provides the necessary inputs for appropriate preventive/corrective action to be taken in a smart structure — sits at the heart of such a system. This volume explores advances in materials properties and structural behavior underlying creation of smart composite structures and sensor systems for structural health monitoring of critical engineering structures, such as bridges, aircrafts, and wind blades.
Author : Charles Kittel
Publisher : Wiley
ISBN 13 : 9780471415268
Total Pages : 704 pages
Book Rating : 4.4/5 (152 download)
Download or read book Introduction to Solid State Physics written by Charles Kittel and published by Wiley. This book was released on 2004-11-11 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the first edition over 50 years ago, Introduction to Solid State Physics has been the standard solid state physics text for physics students. The author's goal from the beginning has been to write a book that is accessible to undergraduates and consistently teachable. The emphasis in the book has always been on physics rather than formal mathematics. With each new edition, the author has attempted to add important new developments in the field without sacrificing the book's accessibility and teachability. * A very important chapter on nanophysics has been written by an active worker in the field. This field is the liveliest addition to solid state science during the past ten years * The text uses the simplifications made possible by the wide availability of computer technology. Searches using keywords on a search engine (such as Google) easily generate many fresh and useful references
Author :
Publisher :
ISBN 13 :
Total Pages : 2668 pages
Book Rating : 4.3/5 (91 download)
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Isao Tanaka
Publisher : Springer
ISBN 13 : 9789811677144
Total Pages : 278 pages
Book Rating : 4.6/5 (771 download)
Download or read book The Plaston Concept written by Isao Tanaka and published by Springer. This book was released on 2022-02-28 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book presents the novel concept of plaston, which accounts for the high ductility or large plastic deformation of emerging high-performance structural materials, including bulk nanostructured metals, hetero-nanostructured materials, metallic glasses, intermetallics, and ceramics.The book describes simulation results of the collective atomic motion associated with plaston, by computational tools such as first-principle methods with predictive performance and large-scale atom-dynamics calculations. Multi-scale analyses with state-of-the art analytical tools nano/micro pillar deformation and nano-indentation experiments are also described. Finally, through collaborative efforts of experimental and computational work, examples of rational design and development of new structural materials are given, based on accurate understanding of deformation and fracture phenomena.This publication provides a valuable contribution to the field of structural materials research.
