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Excimer Laser Interaction With Zinc Oxide
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Book Synopsis Excimer Laser Interaction with Zinc Oxide by : Enamul Haque Khan
Download or read book Excimer Laser Interaction with Zinc Oxide written by Enamul Haque Khan and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: When single crystal ZnO is exposed to 193-nm laser photons in vacuum at fluences below 100 mJ/cm2, isolated Zn vacancies are produced due to the emission of energetic Zn+. The pair wise formation of Zn vacancies and Zn+ interstitials is attributed to the photochemical excitation of anti-bonding Zn-O bonds. Interstitial Zn + diffuses to the surface where it is loosely bound to the surface---often atop a photoionizable electron trap; adsorbed Zn+ is emitted when the underlying trap is photoionized. Isolated Zn vacancies also diffuse following the laser pulse. These electron traps can reduce the near-surface free carrier concentration by as much as a factor of five on irradiated samples.
Book Synopsis Zinc Ion and Neutral Emission from Single Crystal Zinc Oxide During 193-nm Excimer Laser Exposure by :
Download or read book Zinc Ion and Neutral Emission from Single Crystal Zinc Oxide During 193-nm Excimer Laser Exposure written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mass resolved time-of-flight measurements on neutral zinc atoms and zinc ions show energetic ions and neutrals during 193-nm irradiation of single crystals of semiconducting zinc oxide. Typical Zn+ kinetic energies are 3-5 eV. At fluences (energy per unit area per pulse) below 200 mJ/cm2, the ion intensities (per laser pulse) decrease monotonically to low values with laser pulse number. The depletion kinetics change from exponential to second order near 50 mJ/cm2. We attribute this change to the annihilation of defects yielding Zn+ emission when Zn+ or other surface defects become mobile. At fluences between 200 and 300 mJ/cm2, Zn+ emission becomes more sustained due to defects created by the laser. In this same fluence range, we observe the onset of detectable neutral atomic zinc emission. These neutral atoms display Maxwell-Boltzmann kinetic energy distributions w th effective surface temperatures that approach 5000 K as the fluence is raised to 350 mJ/cm2. These high surface temperatures are remarkable given the low etch rates observed at these fluences, suggesting that heated layer is extremely thin. We propose emission mechanisms and experiments to resolve outstanding questions.
Download or read book Laser Technology written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2018-01-22 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: The acronym Laser is derived from Light Amplification by Stimulated Emission of Radiation. With the advent of the ruby laser in 1960, there has been tremendous research activity in developing novel, more versatile and more efficient laser sources or devices, as lasers applications are ubiquitous. Today, lasers are used in many areas of human endeavor and are routinely employed in a host of diverse fields: various branches of engineering, microelectronics, biomedical, medicine, dentistry, surgery, surface modification, to name just a few. In this book (containing 10 chapters) we have focused on application of lasers in adhesion and related areas. The topics covered include: Topographical modification of polymers and metals by laser ablation to create superhydrophobic surfaces. Non-ablative laser surface modification. Laser surface modification to enhance adhesion. Laser surface engineering of materials to modulate their wetting behavior. Laser surface modification in dentistry. Laser polymer welding. Laser based adhesion testing technique to measure thin film-substrate interface toughness. Laser surface removal of hard thin ceramic coatings. Laser removal of particles from surfaces. Laser induced thin film debonding for micro-device fabrication applications.
Book Synopsis Zinc Oxide Bulk, Thin Films and Nanostructures by : Chennupati Jagadish
Download or read book Zinc Oxide Bulk, Thin Films and Nanostructures written by Chennupati Jagadish and published by Elsevier. This book was released on 2011-10-10 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an in-depth exploration of the following topics, this book covers the broad uses of zinc oxide within the fields of materials science and engineering: - Recent advances in bulk , thin film and nanowire growth of ZnO (including MBE, MOCVD and PLD), - The characterization of the resulting material (including the related ternary systems ZgMgO and ZnCdO), - Improvements in device processing modules (including ion implantation for doping and isolation ,Ohmic and Schottky contacts , wet and dry etching), - The role of impurities and defects on materials properties - Applications of ZnO in UV light emitters/detectors, gas, biological and chemical-sensing, transparent electronics, spintronics and thin film
Book Synopsis Laser-Surface Interactions for New Materials Production by : Antonio Miotello
Download or read book Laser-Surface Interactions for New Materials Production written by Antonio Miotello and published by Springer Science & Business Media. This book was released on 2009-12-05 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview on nanosecond and ultra-short laser-induced phenomena and the related diagnostics. It grew from the lectures of the International School "Laser-surface interactions for new materials production" held in July 2008.
Book Synopsis Transparent Conductive Zinc Oxide by : Klaus Ellmer
Download or read book Transparent Conductive Zinc Oxide written by Klaus Ellmer and published by Springer Science & Business Media. This book was released on 2007-12-29 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) belongs to the class of transparent conducting oxides that can be used as transparent electrodes in electronic devices or heated windows. In this book the material properties of, the deposition technologies for, and applications of zinc oxide in thin film solar cells are described in a comprehensive manner. Structural, morphological, optical and electronic properties of ZnO are treated in this review.
Book Synopsis Laser Processing and Chemistry by : Dieter Bäuerle
Download or read book Laser Processing and Chemistry written by Dieter Bäuerle and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Processing and Chemistry gives an overview of the fundamentals and applications of laser--matter interactions, in particular with regard to laser material processing. Special attention is given to laser-induced physical and chemical processes at gas--solid, liquid--solid, and solid--solid interfaces. Starting with the background physics, the book proceeds to examine applications of laser techniques in micro-machining, and the patterning, coating, and modification of material surfaces. Students, engineers, and manufacturers alike will find this book an invaluable reference work for the state of the art in laser processing.
Book Synopsis Zinc Oxide Bulk, Thin Films and Nanostructures: Processing, Properties, and Applications by : Chennupati Jagadish
Download or read book Zinc Oxide Bulk, Thin Films and Nanostructures: Processing, Properties, and Applications written by Chennupati Jagadish and published by Elsevier Science. This book was released on 2006-09 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an in-depth exploration of the following topics, this book covers the broad uses of zinc oxide within the fields of materials science and engineering: - Recent advances in bulk, thin film and nanowire growth of ZnO (including MBE, MOCVD and PLD), - The characterization of the resulting material (including the related ternary systems ZgMgO and ZnCdO), - Improvements in device processing modules (including ion implantation for doping and isolation, Ohmic and Schottky contacts, wet and dry etching), - The role of impurities and defects on materials properties - Applications of ZnO in UV light emitters/detectors, gas, biological and chemical-sensing, transparent electronics, spintronics and thin film
Book Synopsis Metal Oxide Nanocomposite Thin Films for Optoelectronic Device Applications by : Rayees Ahmad Zargar
Download or read book Metal Oxide Nanocomposite Thin Films for Optoelectronic Device Applications written by Rayees Ahmad Zargar and published by John Wiley & Sons. This book was released on 2023-11-07 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: METAL OXIDE NANOCOMPOSITE THIN FILMS FOR OPTOELECTRONIC DEVICE APPLICATIONS The book provides insight into the fundamental aspects, latest research, synthesis route development, preparation, and future applications of metal oxide nanocomposite thin films. The fabrication of thin film-based materials is important to the future production of safe, efficient, and affordable energy as the devices convert sunlight into electricity. Thin film devices allow excellent interface engineering for high-performance printable solar cells as their structures are highly reliable and stand-alone systems can provide the required megawatts. They have been used as power sources in solar home systems, remote buildings, water pumping, megawatt-scale power plants, satellites, communications, and space vehicles. Metal Oxide Nanocomposite Thin Films for Optoelectronic Device Applications covers the basics of advanced nanometal oxide-based materials, their synthesis, characterization, and applications, and all the updated information on optoelectronics. Topics discussed include the implications of metal oxide thin films, which are critical for device fabrications. It provides updated information on the economic aspect and toxicity, with great focus paid to display applications, and covers some core areas of nanotechnology, which are particularly concerned with optoelectronics and the available technologies. The book concludes with insights into the role of nanotechnology and the physics behind photovoltaics. Audience The book will be an important volume for electronics and electrical engineers, nanotechnologists, materials scientists, inorganic chemists in academic research, and those in industries, exploring the applications of nanoparticles in semiconductors, power electronics, and more.
Book Synopsis Multifunctional Oxide-Based Materials: From Synthesis to Application by : Teofil Jesionowski
Download or read book Multifunctional Oxide-Based Materials: From Synthesis to Application written by Teofil Jesionowski and published by MDPI. This book was released on 2019-09-03 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with novel aspects and perspectives in metal oxide and hybrid material fabrication. The contributions are mainly focused on the search for a new group of advanced materials with designed physicochemical properties, especially an expanded porous structure and defined surface activity. The proposed technological procedures result in an enhanced activity of the synthesized hybrid materials, which is of great importance when considering their potential fields of application. The use of such materials in different technological disciplines, including aspects associated with environmental protection, allows for the verification of the proposed synthesis method. Thus, it can be stated that those aspects are of interdisciplinary character and may be located at the interface of three scientific disciplines—chemistry, materials science, and engineering—as well as environmental protection. Furthermore, the presented scientific scope is in some way an answer to the continuous demand for such types of materials and opens new perspectives for their practical use
Book Synopsis Laser and Plasma Applications in Materials Science by : El-Hachemi Amara
Download or read book Laser and Plasma Applications in Materials Science written by El-Hachemi Amara and published by American Institute of Physics. This book was released on 2008-10-16 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: All papers were peer-reviewed. In the industry, the laser is placed like a tool having shown its effectiveness from the point of view of the tasks execution speed, the accuracy and the quality of the obtained result. Beside, the plasmas obtained by laser, by discharge, or the dusty plasmas are now intensively studied both by theoretical and experimental approaches since their applications are very promising in many fields. The First International Conference on Laser and Plasma Applications in Materials Science (LAPAMS’08) organized by the Centre de Développement des Technologies Avancées (CDTA) of Algiers. Its objective was to present the state of the art, the trends, the fundamental aspects of the interaction between a laser beam and material, and the modelling and simulation of laser and plasma for the applications. The conference gathered 16 eminent invited speakers in different research fields related to laser and plasma technologies and applications. These invited speakers known for their international notoriety were from Canada, USA, France, United Kingdom, Spain, Italy, South Africa, and Algeria. Beside about 120 scientists, researchers, engineers and students from ten countries of the African, European and American continents have participated to the conference. More than 100 contributions have been submitted, and the accepted ones were selected by LAPAMS’08 scientific committee.
Book Synopsis Optimisation of ZnO Thin Films by : Saurabh Nagar
Download or read book Optimisation of ZnO Thin Films written by Saurabh Nagar and published by Springer. This book was released on 2017-05-22 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph describes the different implantation mechanisms which can be used to achieve strong, reliable and stable p-type ZnO thin films. The results will prove useful in the field of optoelectronics in the UV region. This book will prove useful to research scholars and professionals working on doping and implantation of ZnO thin films and subsequently fabricating optoelectronic devices. The first chapter of the monograph emphasises the importance of ZnO in the field of optoelectronics for ultraviolet (UV) region and also discusses the material, electronic and optical properties of ZnO. The book then goes on to discuss the optimization of pulsed laser deposited (PLD) ZnO thin films in order to make successful p-type films. This can enable achievement of high optical output required for high-efficiency devices. The book also discusses a hydrogen implantation study on the optimized films to confirm whether the implantation leads to improvement in the optimized results.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Science and Applications by : Lotfia El Nadi
Download or read book Laser Science and Applications written by Lotfia El Nadi and published by World Scientific. This book was released on 2010 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents information on the exciting breakthroughs and the very quickly evolving fields of research in laser science and applications. This book provides state-of-the-art knowledge of lasers and their applications, with contributions from scientists and technologists from Egyptian and international universities, institutes, ministries and industries in this highly advanced field of science and technology. This book covers topics related to laser development and applications in the following fields of research: fiber optics; remote sensing; ultra-fast phenomena; laser spectroscopy; laser photobiology; laser photochemistry; laser applications in agriculture; laser applications in engineering; laser applications in medicine; laser applications in photochemistry and photobiology; and, laser basic sciences.
Book Synopsis Pulsed Laser Deposition of Thin Films by : Robert Eason
Download or read book Pulsed Laser Deposition of Thin Films written by Robert Eason and published by John Wiley & Sons. This book was released on 2007-12-14 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by major contributors to the field, this text summarizes current or newly emerging pulsed laser deposition application areas. It spans the field of optical devices, electronic materials, sensors and actuators, biomaterials, and organic polymers. Every scientist, technologist and development engineer who has a need to grow and pattern, to apply and use thin film materials will regard this book as a must-have resource.
Download or read book Nanothermites written by Eric Lafontaine and published by John Wiley & Sons. This book was released on 2016-07-25 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent introduction of the “nano” dimension to pyrotechnics has made it possible to develop a new family of highly reactive substances: nanothermites. These have a chemical composition that is comparable to that of thermites at submillimeter or micrometric granulometry, but with a morphology having a much increased degree of homogeneity. This book discusses the methods of preparation of these energetic nanomaterials, their specific properties, and the different safety aspects inherent in their manipulation.
Book Synopsis Lasers For Scientists And Engineers by : L Wilmer Anderson
Download or read book Lasers For Scientists And Engineers written by L Wilmer Anderson and published by World Scientific Publishing Company. This book was released on 2017-06-19 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the invention of the laser, the variety of lasers and their uses have grown at a phenomenal rate. Scientists and engineers have at their disposal an enormous array of sophisticated laser equipments with the possibility of carrying out experiments that were inconceivable only a few decades ago. Lasers for Scientists and Engineers is a grand and glorious book that discusses the principles of laser operation and the details of how selected lasers operate.This book is short and easy to read, enabling the reader to thoroughly grasp the subject, with discussions that begin at an elementary level and lead to a complete understanding of lasers. This book is suitable for a one semester college course for upper-level undergraduate or first year graduate level students in physics, chemistry, biology, astronomy, and the various fields of engineering. The background needed for this book would be junior level courses in optics and modern physics including elementary quantum mechanics.
