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The crystallization of complex-oxide materials through a transformation from the amorphous to crystalline forms presents a range of new opportunities to synthesize new materials, and simultaneously poses important scientific challenges. New crystallization method complements more conventional vapor-phase epitaxy techniques for epitaxial complex-oxide thin film growth that involve long-range surface diffusion on 2D planar crystal surfaces. The vapor-phase techniques are not readily adaptable to creating nanoscale epitaxial complex-oxide crystals. The alternative synthesis method described in this thesis is solid-phase crystallization, which is the crystallization of amorphous oxides, often in the form of thin films, by post-deposition heating. The creation of epitaxial complex-oxide nanostructures can facilitate their integration in 3D electronic, optoelectronic and ionic devices. Epitaxial complex-oxide crystals in intricate geometries can be created by solid-phase crystallization employing patterned substrates with a distribution of isolated crystalline seeds. This method requires the study of distinct crystal growth and nucleation kinetics on epitaxial and non-epitaxial surfaces. Nanoscale seeded crystallization can be achieved by understanding the relative rates of nucleation and lateral crystal growth processes, and the role of seeds in determining the overall orientation of the resulting crystals. Epitaxial complex-oxide thin films in intricate geometries with an expanded range of compositions can be created by combining the use of atomic layer deposition (ALD) and solid-phase crystallization, with the development of new ALD procedures to deposit amorphous oxide films and the study of the subsequent crystallization processes to select the crystalline structures of the crystallized film. ALD itself allows for the conformal deposition of thin films over non-planar surfaces. Solid-phase crystallization can also be used to deposit epitaxial complex-oxide thin films with a wider range of compositions, including those that cannot be deposited from the vapor phase at high temperatures. Such oxides include the oxides that have complex compositions and volatile components. The different kinetic constraints of solid-phase crystallization allow the epitaxial growth of those oxide thin films because of the slow diffusion in the solid state at relatively low crystallization temperatures. This thesis describes the discovery that, at low crystallization temperatures, epitaxial crystal growth of the model perovskite SrTiO3 on single-crystal SrTiO3 propagates over long distances without nucleation of SrTiO3 on Si with a native oxide. Two kinds of isolated nanoscale seed crystals are employed to study the seeded lateral crystallization of SrTiO3, yielding highly similar results. Micron-scale crystalline regions form surrounding the seeds before encountering separately nucleated crystals away from the seeds. Seed crystals play an important role in determining the orientations of the resulting crystals. New chemical precursors and ALD procedures were developed to grow amorphous PrAlO3 films. An epitaxial [lowercase gamma]-Al2O3 layer formed at the interface between the PrAlO3 film and (001) SrTiO3 substrate during the deposition. Epitaxial PrAlO3 films were achieved on (001) [lowercase gamma]-Al2O3/SrTiO3 by solid-phase epitaxy. The study of SrTiO3 and PrAlO[3] is also applicable to a series of chemically and structurally similar functional ABO3 compounds. The concepts of solid-phase crystallization also apply to oxides with multiple metal ions and more complex crystal structure. The kinetic processes occurring during the crystallization of ScAlMgO4, on (0001) sapphire substrates are quite different at two different temperatures. Epitaxial ScAlMgO4 crystals grow through the film thickness at a crystallization temperature of 950 °C. Solid-state reaction and evaporation of the component Sc prohibits the formation of large ScAlMgO4 crystals at a crystallization temperature of 1400 °C. Low-temperature crystallization can be used to create epitaxial oxide thin films with complex compositions and volatile components.
Product Details :
Genre |
: |
Author |
: Yajin Chen |
Publisher |
: |
Release |
: 2019 |
File |
: 150 Pages |
ISBN-13 |
: OCLC:1121080760 |
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Thin-film solar cells are either emerging or about to emerge from the research laboratory to become commercially available devices finding practical various applications. Currently no textbook outlining the basic theoretical background, methods of fabrication and applications currently exist. Thus, this book aims to present for the first time an in-depth overview of this topic covering a broad range of thin-film solar cell technologies including both organic and inorganic materials, presented in a systematic fashion, by the scientific leaders in the respective domains. It covers a broad range of related topics, from physical principles to design, fabrication, characterization, and applications of novel photovoltaic devices.
Product Details :
Genre |
: Science |
Author |
: Jef Poortmans |
Publisher |
: John Wiley & Sons |
Release |
: 2006-10-02 |
File |
: 502 Pages |
ISBN-13 |
: 0470091274 |
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Product Details :
Genre |
: Physics |
Author |
: |
Publisher |
: |
Release |
: 1993 |
File |
: 1180 Pages |
ISBN-13 |
: UOM:39015027851834 |
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Genre |
: Electrochemistry |
Author |
: Electrochemical Society |
Publisher |
: |
Release |
: 1987 |
File |
: 852 Pages |
ISBN-13 |
: UCSD:31822017831488 |
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Genre |
: Technology & Engineering |
Author |
: Jagdish Narayan |
Publisher |
: North Holland |
Release |
: 1983 |
File |
: 800 Pages |
ISBN-13 |
: UOM:39015006110905 |
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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.
Product Details :
Genre |
: Science |
Author |
: Robert Eason |
Publisher |
: John Wiley & Sons |
Release |
: 2007-12-14 |
File |
: 754 Pages |
ISBN-13 |
: 9780470052112 |
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Product Details :
Genre |
: Aeronautics |
Author |
: |
Publisher |
: |
Release |
: 1994 |
File |
: 892 Pages |
ISBN-13 |
: UIUC:30112005547648 |
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Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Product Details :
Genre |
: Science |
Author |
: Wade H. Shafer |
Publisher |
: Springer Science & Business Media |
Release |
: 2012-12-06 |
File |
: 421 Pages |
ISBN-13 |
: 9781461534747 |
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Product Details :
Genre |
: Aeronautics |
Author |
: |
Publisher |
: |
Release |
: 1999 |
File |
: 974 Pages |
ISBN-13 |
: STANFORD:36105021811372 |
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Product Details :
Genre |
: Government reports announcements & index |
Author |
: |
Publisher |
: |
Release |
: 1982 |
File |
: 1012 Pages |
ISBN-13 |
: MINN:30000008703500 |