Preparation and Characterization of Alumina Films by Sol-Gel Method PDF Download
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Author: R. Brusasco
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
The method of producing a good dielectric layer such as A12O3 on a III-V semiconductor such as InP is limited by the thermal stability of the substrate. Since InPis reported to be stable only up to about 360 C (1), low temperature synthetic methods must be employed to produce insulating films. A low temperature sol-gel method was used to apply a thin film of alumina on indium phosphide substrates by spin application. The resultant films were characterized by ellipsometry and electron microscopy to determine thickness and porosity. The current-voltage characteristics of the films were measured as a function of annealing temperature.
Author: R. Brusasco
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
The method of producing a good dielectric layer such as A12O3 on a III-V semiconductor such as InP is limited by the thermal stability of the substrate. Since InPis reported to be stable only up to about 360 C (1), low temperature synthetic methods must be employed to produce insulating films. A low temperature sol-gel method was used to apply a thin film of alumina on indium phosphide substrates by spin application. The resultant films were characterized by ellipsometry and electron microscopy to determine thickness and porosity. The current-voltage characteristics of the films were measured as a function of annealing temperature.
Author: William Joseph DeSisto
Publisher:
ISBN:
Category :
Languages : en
Pages : 242
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Author: Lisa Klein
Publisher: Springer Nature
ISBN: 3319321013
Category : Technology & Engineering
Languages : en
Pages : 3755
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Book Description
This completely updated and expanded second edition stands as a comprehensive knowledgebase on both the fundamentals and applications of this important materials processing method. The diverse, international team of contributing authors of this reference clarify in extensive detail properties and applications of sol-gel science and technology as it pertains to the production of substances, active and non-active, including optical, electronic, chemical, sensor, bio- and structural materials. Essential to a wide range of manufacturing industries, the compilation divides into the three complementary sections: Sol-Gel Processing, devoted to general aspects of processing and recently developed materials such as organic-inorganic hybrids, photonic crystals, ferroelectric coatings, and photocatalysts; Characterization of Sol-Gel Materials and Products, presenting contributions that highlight the notion that useful materials are only produced when characterization is tied to processing, such as determination of structure by NMR, in-situ characterization of the sol-gel reaction process, determination of microstructure of oxide gels, characterization of porous structure of gels by the surface measurements, and characterization of organic-inorganic hybrid; and Applications of Sol-Gel Technology, covering applications such as the sol-gel method used in processing of bulk silica glasses, bulk porous gels prepared by sol-gel method, application of sol-gel method to fabrication of glass and ceramic fibers, reflective and antireflective coating films, application of sol-gel method to formation of photocatalytic coating films, and application of sol-gel method to bioactive coating films. The comprehensive scope and integrated treatment of topics make this reference volume ideal for R&D scientists and engineers across a wide range of disciplines and professional interests.
Author: Duangsamorn Charoenkul
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Mark Joseph Waner
Publisher:
ISBN:
Category : Aluminum oxide
Languages : en
Pages : 178
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Author: Sumio Sakka
Publisher: Springer Science & Business Media
ISBN: 9781402079665
Category : Science
Languages : en
Pages : 716
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Book Description
Since Dr. Disiich of Germany prepared a glass lens by the sol-gel method around 1970, sol-gel science and technology has continued to develop. Since then this field has seen remarkable technical developments as well as a broadening of the applications of sol-gel science and technology. There is a growing need for a comprehensive reference that treats both the fundamentals and the applications, and this is the aim of "Handbook of Sol-Gel Science and Technology."The primary purpose of sol-gel science and technology is to produce materials, active and non-active including optical, electronic, chemical, sensor, bio- and structural materials. This means that sol-gel science and technology is related to all kinds of manufacturing industries. Thus Volume 1, "Sol-Gel Processing," is devoted to general aspects of processing. Newly developed materials such as organic-inorganic hybrids, photonic crystals, ferroelectric coatings, photocatalysts will be covered. Topics in this volume include: Volume 2, "Characterization of Sol-Gel Materials and Products, "highlights the important fact that useful materials are only produced when characterization is tied to processing. Furthermore, characterization is essential to the understanding of nanostructured materials, and sol-gel technology is a most important technology in this new field. Since nanomaterials display their functional property based on their nano- and micro-structure, "characterization" is very important. Topics found in Volume 2 include: Sol-gel technology is a versatile technology, making it possible to produce a wide variety of materials and to provide existing substances with novel properties. This technology was applied to producingnovel materials, for example organic-inorganic hybrids, which are quite difficult to make by other fabricating techniques, and it was also applied to producing materials based on high temperature superconducting oxides. "Applications of Sol-Gel Technology," (Volume 3), will cover applications such as:
Author: R. Reisfeld
Publisher:
ISBN:
Category :
Languages : en
Pages : 41
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Book Description
Thin glass films prepared by the sol-gel method were deposited on glass supports. Divalent cobalt and divalent copper were used as optical probes for changes in the glass formation and re-arrangement of the silicate groups during the heat-treatments whereby the cobalt ion initially octahedrally coordinated was transformed into lower coordination as a result of elimination of water and increase of density of the glass. Divalent copper is also effective in infrared absorption and silver particles embedded in the films form narrow-band absorbing filter. Characterization of surfaces of thin films applied in coatings for lasers and laser windows is important in understanding and preventing damage of these materials. (jes).
Author: P. Strehlow
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: J. Fournier
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
A simple novel horizontal reactor was used to prepare 2000 angstrom films of alumina on silicon substrates by the thermal decomposition of aluminum tri isopropoxide at temperatures between 350 and 500 C. The films were annealed in oxygen to test suitability towards shrinkage and were characterized as to porosity, the presence of OH absorption bands in the infrared transmittance spectra and breakdown voltage. Keywords: Material index; Alumina tri-isopropoxide; Silicon.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 652
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Book Description
