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Level Of Dangling Bond Centres And Its Broadening Due To Disorder In Amorphous Silicon As Elucidated By Optically Detected Magnetic Resonance Measurements
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Book Synopsis Level of Dangling Bond Centres and Its Broadening Due to Disorder in Amorphous Silicon as Elucidated by Optically Detected Magnetic Resonance Measurements by : Kazuo Morigaki
Download or read book Level of Dangling Bond Centres and Its Broadening Due to Disorder in Amorphous Silicon as Elucidated by Optically Detected Magnetic Resonance Measurements written by Kazuo Morigaki and published by . This book was released on 1982 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductors and Semimetals written by and published by Academic Press. This book was released on 1984-10-01 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductors and Semimetals
Download or read book Technical Report of ISSP. written by and published by . This book was released on 1982 with total page 644 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 1992 with total page 1358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Defect Creation by Optical Excitation in Hydrogenated Amorphous Silicon as Elucidated by Optically Detected Magnetic Resonance by : Kazuo Morigaki
Download or read book Defect Creation by Optical Excitation in Hydrogenated Amorphous Silicon as Elucidated by Optically Detected Magnetic Resonance written by Kazuo Morigaki and published by . This book was released on 1981 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effective Correlation Energy of the Dangling Bond in Amorphous Silicon by : David Adler
Download or read book Effective Correlation Energy of the Dangling Bond in Amorphous Silicon written by David Adler and published by . This book was released on 1982 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Probing of Dangling Bonds During Silicon Thin Film Growth by : Igor Matheus Petronella Aarts
Download or read book Optical Probing of Dangling Bonds During Silicon Thin Film Growth written by Igor Matheus Petronella Aarts and published by . This book was released on 2006 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis work, two optical techniques, second harmonic generation (SHG) and cavity ring-down spectroscopy (CRDS), were employed to probe bulk and surface dangling bond defect states in hydrogenated amorphous silicon (a-Si:H). Using these techniques the role of Si dangling bonds in the a-Si:H growth process was studied in order to obtain better fundamental understanding of the growth mechanism.
Book Synopsis Structural Relaxation Process in Pure Amorphous Silicon by : Leonardus Bimo Bayu Aji
Download or read book Structural Relaxation Process in Pure Amorphous Silicon written by Leonardus Bimo Bayu Aji and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous silicon (a-Si) is a material of major scientific and technological interest. It has been a very active topic of investigation for several decades, frequently crossing the border between physics and materials science. Research has been motivated partly by the fact that a-Si is an excellent model of a covalently bonded continuous random (CRN) network; thus a detailed understanding of the structure and properties of this material may aid the understanding of many other disordered materials. Notwithstanding many years of research and widely accessible experimental techniques, the structural properties of as-implanted a-Si and its relaxation mechanism remain poorly understood and are indeed subject of lively debate. This thesis addresses this issue by looking at the transition from unrelaxed to relaxed states which may provide insight into the nature of the structural relaxation process. In all three forms of a-Si studied: ion-implanted, pressure-induced, and re-irradiated relaxed a-Si, analysis of Raman spectra indicated a local ordering of the material approaching a continuous random network in the fully relaxed material due to thermal annealing. The bond-angle distortion is found to reduce at temperatures above 250 degree Celsius, whereas previous studies show reduction below this temperature. Electrical conductivity measurements of ion-implanted a-Si showed a decrease in the number of dangling bonds upon annealing. This phenomenon is observed during low temperature annealing up to 250 degree Celsius, before the bond-angle ordering commenced. Differential scanning calorimetry measurements show a heat release during low temperature annealing that is predominately due to defect annealing from the structure, but the heat release continues up to annealing temperature where the bond-angle distortion is reduced. Indentation tests showed that the transition in the deformation mechanism in ion-implanted a-Si mechanism from plastic to phase transformation related to the reduction of defects in the structure. This transition occurred at annealing temperatures before the bond-angle distortion reached its minimum value. The effect of in-diffused hydrogen upon annealing was also extensively investigated in this current study. It is observed that in-diffused hydrogen does not contribute significantly to the short-range ordering and hence structural relaxation. Finally, the results from all studies, namely Raman spectroscopy, electrical measurements, calorimetry, and indentation are brought together to develop a new model for structural relaxation in a-Si. Broadly, it is found that there are two main steps in structural relaxation: defect removal at low temperatures up to 250 degree Celsius, which is accompanied by significant heat release, and a reduction in bond-angle distortion at higher temperatures, where the amount of heat release is smaller. In terms of existing models, the current findings are consistent with elements of the previous defect/lattice strain models but differ in that a more distinct separation of defect removal and reduction in strain (bond-angle distortion) is found in the present study.
Download or read book Metals Abstracts written by and published by . This book was released on 1979 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Properties of Low Dimensional Silicon Structures by : B. Bensahel
Download or read book Optical Properties of Low Dimensional Silicon Structures written by B. Bensahel and published by Springer. This book was released on 1993-08-31 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: The workshop on "Optical Properties of Low Dimensional Silicon sL Structures" was held in Meylan, France on March, I yd, 1993. The workshop took place inside the facilities of France Telecom- CNET. Around 45 leading scientists working on this rapidly moving field were in attendance. Principal support was provided by the Advanced Research Workshop Program of the North Atlantic Treaty Organisation (NATO). French Delegation a l'Armement and CNET gave also a small financial grant, the organisational part being undertaken by the SEE and CNET. There is currently intense research activity worldwide devoted to the optical properties of low dimensional silicon structures. This follow the recent discovery of efficient visible photoluminescence (PL) from highly porous silicon. This workshop was intended to bring together all the leading European scientists and laboratories in order to reveal the state of the art and to open new research fields on this subject. A large number of invited talks took place (12) together with regular contribution (20). The speakers were asked to leave nearly 1/3 of the time to the discussion with the audience, and that promoted both formal and informal discussions between the participants.
Book Synopsis Amorphous Semiconductors by : Kazuo Morigaki
Download or read book Amorphous Semiconductors written by Kazuo Morigaki and published by John Wiley & Sons. This book was released on 2017-03-06 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous semiconductors are subtances in the amorphous solid state that have the properties of a semiconductor and which are either covalent or tetrahedrally bonded amorphous semiconductors or chelcogenide glasses. Developed from both a theoretical and experimental viewpoint Deals with, amongst others, preparation techniques, structural, optical and electronic properties, and light induced phenomena Explores different types of amorphous semiconductors including amorphous silicon, amorphous semiconducting oxides and chalcogenide glasses Applications include solar cells, thin film transistors, sensors, optical memory devices and flat screen devices including televisions
Book Synopsis Silicon Nanocrystals by : Lorenzo Pavesi
Download or read book Silicon Nanocrystals written by Lorenzo Pavesi and published by John Wiley & Sons. This book was released on 2010-02-02 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique collection of knowledge represents a comprehensive treatment of the fundamental and practical consequences of size reduction in silicon crystals. This clearly structured reference introduces readers to the optical, electrical and thermal properties of silicon nanocrystals that arise from their greatly reduced dimensions. It covers their synthesis and characterization from both chemical and physical viewpoints, including ion implantation, colloidal synthesis and vapor deposition methods. A major part of the text is devoted to applications in microelectronics as well as photonics and nanobiotechnology, making this of great interest to the high-tech industry.
Download or read book Nanosilicon written by Vijay Kumar and published by Elsevier. This book was released on 2011-07-28 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Properties of nanosilicon in the form of nanoparticles, nanowires, nanotubes, and as porous material are of great interest. They can be used in finding suitable components for future miniature devices, and for the more exciting possibilities of novel optoelectronic applications due to bright luminescence from porous silicon, nanoparticles and nanowires. New findings from research into metal encapsulated clusters, silicon fullerenes and nanotubes have opened up a new paradigm in nanosilicon research and this could lead to large scale production of nanoparticles with control on size and shape as well as novel quasi one-dimensional structures. There are possibilities of using silicon as an optical material and in the development of a silicon laser. In Nanosilicon, leading experts cover state-of-the-art experimental and theoretical advances in the different forms of nanosilicon. Furthermore, applications of nanosilicon to single electron transistors, as photonic material, chemical and biological sensors at molecular scale, and silicon nanowire devices are also discussed. Self-assemblies of silicon nanoforms are important for applications. These developments are also related to cage structures of silicon in clathrates. With an interesting focus on the bottlenecks in the advancement of silicon based technology, this book provides a much-needed overview of the current state of understanding of nanosilicon research. Latest developments in nanoparticles, nanowires and nanotubes of silicon Focus on nanosilicon - a very timely subject attracting large interest Novel chapters on metal encapsulated silicon clusters and nanotubes
Book Synopsis Optical Properties of Solids by : Frederick Wooten
Download or read book Optical Properties of Solids written by Frederick Wooten and published by Academic Press. This book was released on 2013-10-22 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Properties of Solids covers the important concepts of intrinsic optical properties and photoelectric emission. The book starts by providing an introduction to the fundamental optical spectra of solids. The text then discusses Maxwell's equations and the dielectric function; absorption and dispersion; and the theory of free-electron metals. The quantum mechanical theory of direct and indirect transitions between bands; the applications of dispersion relations; and the derivation of an expression for the dielectric function in the self-consistent field approximation are also encompassed. The book further tackles current-current correlations; the fluctuation-dissipation theorem; and the effect of surface plasmons on optical properties and photoemission. People involved in the study of the optical properties of solids will find the book invaluable.
Author :Gianfranco Pacchioni Publisher :Springer Science & Business Media ISBN 13 :9780792366850 Total Pages :636 pages Book Rating :4.3/5 (668 download)
Book Synopsis Defects in SiO2 and Related Dielectrics: Science and Technology by : Gianfranco Pacchioni
Download or read book Defects in SiO2 and Related Dielectrics: Science and Technology written by Gianfranco Pacchioni and published by Springer Science & Business Media. This book was released on 2000-12-31 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute, Erice, Italy, April 8-20, 2000
Book Synopsis Transparent Electronics by : Antonio Facchetti
Download or read book Transparent Electronics written by Antonio Facchetti and published by John Wiley & Sons. This book was released on 2010-03-25 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The challenge for producing “invisible” electronic circuitry and opto-electronic devices is that the transistor materials must be transparent to visible light yet have good carrier mobilities. This requires a special class of materials having “contra-indicated properties” because from the band structure point of view, the combination of transparency and conductivity is contradictory. Structured to strike a balance between introductory and advanced topics, this monograph juxtaposes fundamental science and technology / application issues, and essential materials characteristics versus device architecture and practical applications. The first section is devoted to fundamental materials compositions and their properties, including transparent conducting oxides, transparent oxide semiconductors, p-type wide-band-gap semiconductors, and single-wall carbon nanotubes. The second section deals with transparent electronic devices including thin-film transistors, photovoltaic cells, integrated electronic circuits, displays, sensors, solar cells, and electro-optic devices. Describing scientific fundamentals and recent breakthroughs such as the first “invisible” transistor, Transparent Electronics: From Synthesis to Applications brings together world renowned experts from both academia, national laboratories, and industry.
Book Synopsis Emerging Carbon Materials for Catalysis by : Samahe Sadjadi
Download or read book Emerging Carbon Materials for Catalysis written by Samahe Sadjadi and published by Elsevier. This book was released on 2020-09-24 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Carbon Materials for Catalysis covers various carbon-based materials with a focus on their utility for catalysis. Each chapter examines the photo and electrocatalytic applications of a material, including hybrid systems composed of carbon materials. The range of chemical reactions that can be catalyzed with each material—as well as the potential drawbacks of each—are discussed. Covering nanostructured systems, as well as other microstructured materials, the book reviews emerging carbon-based structures, including carbon organic frameworks. Written by a global team of experts, this volume is ideal for graduate students and researchers working in organic chemistry, catalysis, nanochemistry, and nanomaterials. Introduces novel and emerging carbon materials with utility for photocatalysis and electrocatalysis Covers a wide range of photochemical and electrochemical processes that can be catalyzed by carbon-based catalysts Addresses the hybrid systems composed of carbon materials for catalysis Serves as an ideal reference for graduate students and researchers working in organic chemistry, catalysis, nanochemistry, and nanomaterials.
