Download or read book Growth and Characterization of InxGa1 x 2O3 Thin Films Grown by Pulsed Laser Deposition written by Sneha Karen Kawal and published by . This book was released on 2019 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Characterization of Ga2O3 Ga1 xGdx 2O3 Ga1 xFex 2O3 Thin Films by Pulsed Laser Deposition written by Md Dalim Mia and published by . This book was released on 2020 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin film wide bandgap Ga2O3 based alloys are important for applications in high power electronic, deep UV photonic devices and nuclear detectors. Such alloys can be deposited epitaxially by pulsed laser deposition on c-plane sapphire substrates with varied compositions. This work enables the development of heterostructures with Ga2O3 and bandgap tunable device structures with a variety of functionalities. Examples include the use of Gd in the alloy for higher bandgap material which can be used as a gate dielectric in MOSFET devices, and due to the high nuclear cross section of Gd, for nuclear radiation detectors. Alloys containing Fe can be used for the development of high bandgap magnetic devices and high resistive buffer layers for FET applications. Combinations of these thin film alloys open the possibility of heterostructure devices that includes HEMT and quantum well UV optoelectronics. Being motivated by these reasons, this thesis work focused on the growth optimization and characterization of (Ga1-xGdx)2O3 & (Ga1-xFex)2O3 thin films using pulsed laser deposition.

Download or read book Epitaxial Growth and Characterization of Thin Films and Superlattices of Wide Band Gap II VI Semiconductors Grown by Pulsed Laser Deposition written by Shengxi Duan and published by . This book was released on 1994 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Characterization of Wide gap Semiconducting Oxide and Chalcogenide Thin Films by Pulsed Laser Deposition written by Paul F. Newhouse and published by . This book was released on 2008 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preparation and characterization of thin film oxides and chalcogenides by pulsed laser deposition (PLD) is presented. An overview of fundamental PLD concepts are presented and are followed by a description implementation and development of the PLD systems at OSU. We present the results of thin film growth of high electron mobility In2O3:W in which we have prepared films exhibiting □ > 100 cm2/Vs on vitreous SiO2 substrates. The growth of Cu3TaQ 4 (Q = S, Se) films is outlined as a two step process consisting of PLD of ceramic targets followed by ex-situ annealing in chalcogenide vapor. Also, BiCuOSe thin films have been prepared in-situ and exhibit a high hole mobility up to 4 cm2/Vs. A discussion of their electronic structure is presented which explains the nature of the low band gap energy on the basis of deep Bi 6p level at the conduction band minimum. Finally, the results of BaBiO3 thin film preparation are presented in which both polycrystalline and highly (00l) oriented samples were grown.

Download or read book Magnetic and Structural Characterization of Ferrite Thin Films Grown Using Pulsed Laser Deposition written by Paul Christopher Dorsey and published by . This book was released on 1993 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Characterization of Ti Si N Films Grown by Pulsed Laser Deposition with a PLD TOF QMS Plume Study written by Matthew B. Treat and published by . This book was released on 2003 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thin Films and Heterostructures for Oxide Electronics written by Satishchandra B. Ogale and published by Springer Science & Business Media. This book was released on 2005-11-21 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxides form a broad subject area of research and technology development which encompasses different disciplines such as materials science, solid state chemistry, physics etc. The aim of this book is to demonstrate the interplay of these fields and to provide an introduction to the techniques and methodologies involving film growth, characterization and device processing. The literature in this field is thus fairly scattered in different research journals covering one or the other aspect of the specific activity. This situation calls for a book that will consolidate this information and thus enable a beginner as well as an expert to get an overall perspective of the field, its foundations, and its projected progress.

Download or read book Investigation of the Electrical Properties of InxGa1 x 2O3 Alloys Grown Using Pulsed Laser Deposition written by Puja Rani Saha and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Laser Deposition and Characterization of Gallium Nitride Thin Films written by Massimo Cazzanelli and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gallium Oxide written by Stephen Pearton and published by Elsevier. This book was released on 2018-10-15 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gallium Oxide: Technology, Devices and Applications discusses the wide bandgap semiconductor and its promising applications in power electronics, solar blind UV detectors, and in extreme environment electronics. It also covers the fundamental science of gallium oxide, providing an in-depth look at the most relevant properties of this materials system. High quality bulk Ga2O3 is now commercially available from several sources and n-type epi structures are also coming onto the market. As researchers are focused on creating new complex structures, the book addresses the latest processing and synthesis methods. Chapters are designed to give readers a complete picture of the Ga2O3 field and the area of devices based on Ga2O3, from their theoretical simulation, to fabrication and application. Provides an overview of the advantages of the gallium oxide materials system, the advances in in bulk and epitaxial crystal growth, device design and processing Reviews the most relevant applications, including photodetectors, FETs, FINFETs, MOSFETs, sensors, catalytic applications, and more Addresses materials properties, including structural, mechanical, electrical, optical, surface and contact

Download or read book Growth and Characterizations of Complex Oxide Thin Film Heterostructures Via Pulsed Laser Deposition written by Kyeong-Won Kim and published by . This book was released on 2012 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The superlattices showed the strain induced enhancement of magnetization and the Curie temperature of superlattices were lowered substantially with increasing strain. Phosphorus doped ZnOthin films were deposited on ZnO buffer grown under different growth conditions and the properties of thin films were examined, focusing on the role of buffer layers. Phosphorus doped ZnO thin films on buffer layer grown at low temperature were less conductive as grown state and showed a drastic change in the transport properties upon the rapid thermal annealing. This suggests that poor crystalline quality of the buffer layer grown at low temperature lead to the more incorporation of phosphorus dopants in following films. A high resolution X-ray diffraction study confirmed the poor crystalline quality of phosphorus doped thin films on low temperature deposited buffer layer by broader peaks of omega rocking curves. Also it was observed that the microstructures of the phosphorus doped ZnO thin film significantly depended on the buffer layer.

Download or read book Studies on Structural and Dielectric Properties of Ga2O3 Thin Films written by Lee Sang a and published by LAP Lambert Academic Publishing. This book was released on 2014-12-03 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study we report on structural and electric properties of -Ga2O3 on Si and GaN substrates. Since Ga2O3 has a band-gap of 4.8 eV at room temperature and a dielectric constant of 10.2 14.2, Ga2O3 can be a potential candidate dielectrics for MIS devices. -Ga2O3 has been deposited using various techniques such as radio-frequency sputtering, plasma enhanced atomic layer deposition (PEALD), and pulsed laser deposition (PLD). In particular, epitaxial Ga2O3 thin films grown on n-GaN/Al2O3 substrate by PLD technique have a monoclinc -Ga2O3 phase and peaks were indexed as (-2 0 1) and higher order diffractions. Optical transmittance of the epitaxial -Ga2O3 film was more than 90% from UV to visible spectral regions and the optical band-gap of the -Ga2O3 was calculated to be about 4.8 eV. Moreover, we have fabricated MFIS capacitors using Ga2O3 and Ba0.5Sr0.5TiO3 (BST) thin films on GaN/Al2O3 substrate by pulsed laser deposition. The epitaxial growth, structural analysis, and dielectric properties of the Ga2O3 films and BST thin films will be discussed.

Download or read book Growth and Characterization of Cobalt Doped Indium Oxide Thin Films written by Naveen Kumar Mamidi and published by . This book was released on 2007 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth of Semiconductor Thin Films by Pulsed Laser Deposition written by Yilu Li and published by . This book was released on 2016 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsed ultraviolet light from a XeF excimer laser was used to grow thin films of zinc oxide and tin dioxide on (111) p-type silicon wafers within a versatile high vacuum laser deposition system. This pulsed laser deposition system was self-designed and self-built. Parameters such as pressure, target temperature, and distance from the target to the substrate can be adjusted in the system. Scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction spectroscopy, Raman spectroscopy and ellipsometry were used to analyze the structures and properties of ZnO and SnO2 thin films. The critical temperature required to fabricate a crystalline ZnO thin film by pulsed laser deposition was found and has been confirmed. For the SnO2 thin film, the critical temperature required to generate a crystalline structure could not be found because of the temperature limit of the substrate heater used in the experiment. In SnO2 thin films, thermal annealing has been used to convert into crystalline structure with (110), (101) and (211) orientations. After fabricating the amorphous SnO2 thin films, they were put into an oven with specific temperatures to anneal them. The minimum annealing temperature range was found for converting the amorphous SnO2 thin films into SnO2 thin films with a crystalline structure. Thermal annealing has also been applied to some amorphous ZnO thin films which were fabricated under the critical temperature required to produce crystalline ZnO thin films. The minimum annealing temperature range for amorphous ZnO thin films was found and only one orientation (002) shown after annealing. Laser annealing technology has also been applied for converting both amorphous ZnO and SnO2 thin films, and results show that this method was not well suited for this attempt. ZnO thin films and SnO2 thin films with a crystalline structure have inportant widely used in industry, for example, application in devices such as solar cells and UV or blue-light-emitting devices. The aim of this research is to help improving the manufacturing process of ZnO and SnO2 thin films.

Download or read book Comparative Characterization of Molybdenum Oxide Thin Films Grown on Various Substrates Using Temporally Different Pulsed Laser Deposition Techniques written by Krishna Harsha Puppala and published by . This book was released on 2016 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsed Laser Deposition (PLD) technique, with its vast tunability in terms of thin film fabrication has been the center of this study. By changing the temporal component of the laser source used for deposition into the femtosecond (fs) regime, interesting structural, morphological changes can be achieved which may prove to be beneficial for photocatalytic applications. In particular, molybdenum oxide thin films, which are the less well-studied and potentially newer candidates for photocatalysis applications have been chosen for investigation. Hence, a detailed characterization study of molybdenum oxide thin films synthesized using femtosecond-based (f-PLD) and nanosecond-based (n-PLD) techniques, was carried out in terms of their structural, morphological, surface chemical/ electronic states and vibrational properties using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. The f-PLD technique was found to produce more favorable molybdenum oxide thin films deposited on glass for surface-related applications, in terms of having a higher surface to volume ratio, than the n-PLD technique. A related simultaneous study of substrate-based effect on the thin films produced using n-PLD system, also revealed both variation among the morphological, structural, and electronic (in terms of Mo oxidation state) properties depending upon the nature of the substrate used to synthesize the molybdenum oxide thin films. Special cases of thin films on epitaxial substrates (Si, sapphire) have been characterized to determine the parameters necessary for fabricating highly-textured thin films with large surface-area to volume ratio, which is key to efficient photo-catalysts.

Download or read book Functional Metal Oxide Thin Films Grown by Pulsed Laser Deposition written by Mihaela Filipescu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this work is to show that material processing by laser-based technologies can lead to the growth of multifunctional thin films with potential in a large area of applications. The synthesis of Hf, Ta, Si, and Al metal oxides described here relies on the use of pulsed laser deposition (PLD), or radiofrequency (RF) assisted PLD. The morphology and structure of the as-grown thin films are investigated by atomic force microscopy, X-ray diffraction, and transmission electron microscopy, whilst the optical properties are determined by spectroellipsometry. The dielectric behaviour of the deposited layers is investigated by electrical measurements.

Download or read book Structural Characteristics of Metal Oxide Thin Films Grown by Pulsed Laser Deposition written by Haiyan Fan and published by . This book was released on 2004 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: