Author: Madhana Sunder
Publisher:
ISBN:
Category :
Languages : en
Pages : 314
Book Description
Growth of Heteroepitaxial Single Crystal Lead Magnesium Niobate-lead Titanate Thin Films on R-plane Sapphire Substrates
Author: Madhana Sunder
Publisher:
ISBN:
Category :
Languages : en
Pages : 314
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 314
Book Description
Growth of Lead Magnesium Niobate-lead Titanate Single Crystals by Seeded Polycrystal Conversion
Author: Adam Matthew Scotch
Publisher:
ISBN:
Category : Crystal growth
Languages : en
Pages : 248
Book Description
Relaxor-based ferroelectric single crystals of Pb(Mg1/3Nb 2/3)O3-PbTiO3 [PMN-PT] have been produced via the Seeded Polycrystal Conversion [SPC] technique. Polycrystalline precursors of PMN-PT are converted to single crystals by inducing the boundary of a seed crystal to migrate through a polycrystalline matrix. The quality of PMN-PT single crystals grown by SPC is directly influenced by the microstructure of the polycrystalline precursor. The goal of this work was to examine the factors that controlled the final microstructure of the matrix and grown single crystals and to characterize their effects on properties.
Publisher:
ISBN:
Category : Crystal growth
Languages : en
Pages : 248
Book Description
Relaxor-based ferroelectric single crystals of Pb(Mg1/3Nb 2/3)O3-PbTiO3 [PMN-PT] have been produced via the Seeded Polycrystal Conversion [SPC] technique. Polycrystalline precursors of PMN-PT are converted to single crystals by inducing the boundary of a seed crystal to migrate through a polycrystalline matrix. The quality of PMN-PT single crystals grown by SPC is directly influenced by the microstructure of the polycrystalline precursor. The goal of this work was to examine the factors that controlled the final microstructure of the matrix and grown single crystals and to characterize their effects on properties.
Heteroepitaxial Growth of Pt and Au Thin Films on MgO Single Crystals by Bias-assisted Sputtering
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The crystallographic orientation of a metal affects its surface energy and structure, and has profound implications for surface chemical reactions and interface engineering, which are important in areas ranging from optoelectronic device fabrication to catalysis. However, it can be very difficult and expensive to manufacture, orient, and cut single crystal metals along different crystallographic orientations, especially in the case of precious metals. One approach is to grow thin metal films epitaxially on dielectric substrates. In this work, we report on growth of Pt and Au films on MgO single crystal substrates of (100) and (110) surface orientation for use as epitaxial templates for thin film photovoltaic devices. We develop bias-assisted sputtering for deposition of oriented Pt and Au films with sub-nanometer roughness. We show that biasing the substrate decreases the substrate temperature necessary to achieve epitaxial orientation, with temperature reduction from 600 to 350 °C for Au, and from 750 to 550 °C for Pt, without use of transition metal seed layers. Additionally, this temperature can be further reduced by reducing the growth rate. Biased deposition with varying substrate bias power and working pressure also enables control of the film morphology and surface roughness.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The crystallographic orientation of a metal affects its surface energy and structure, and has profound implications for surface chemical reactions and interface engineering, which are important in areas ranging from optoelectronic device fabrication to catalysis. However, it can be very difficult and expensive to manufacture, orient, and cut single crystal metals along different crystallographic orientations, especially in the case of precious metals. One approach is to grow thin metal films epitaxially on dielectric substrates. In this work, we report on growth of Pt and Au films on MgO single crystal substrates of (100) and (110) surface orientation for use as epitaxial templates for thin film photovoltaic devices. We develop bias-assisted sputtering for deposition of oriented Pt and Au films with sub-nanometer roughness. We show that biasing the substrate decreases the substrate temperature necessary to achieve epitaxial orientation, with temperature reduction from 600 to 350 °C for Au, and from 750 to 550 °C for Pt, without use of transition metal seed layers. Additionally, this temperature can be further reduced by reducing the growth rate. Biased deposition with varying substrate bias power and working pressure also enables control of the film morphology and surface roughness.
Optical Properties of Lead Magnesium Niobate-lead Titanate (PMN-PT) and Strontium Barium Niobate (SBN) Thin Films
Author: Ka-yi Chan
Publisher:
ISBN:
Category : Pulsed laser deposition
Languages : en
Pages : 252
Book Description
Publisher:
ISBN:
Category : Pulsed laser deposition
Languages : en
Pages : 252
Book Description
Nucleation and Growth of Heteroepitaxial Diamond
Author: Connie Rebecca Bednarski-Meinke
Publisher:
ISBN:
Category : Diamond thin films
Languages : en
Pages : 378
Book Description
Publisher:
ISBN:
Category : Diamond thin films
Languages : en
Pages : 378
Book Description
The Development of Lead Zirconate Titanate Thin Films for Piezoelectric Microactuators
Author: Annabel Susan Nickles
Publisher:
ISBN:
Category :
Languages : en
Pages : 418
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 418
Book Description
Ceramic Abstracts
Author: American Ceramic Society
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 794
Book Description
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 794
Book Description
Growth, Microstructure and Optical Properties of Epitaxial Lithium Tantalate Thin Films by Metalorganic Chemical Vapor Deposition
Author: Huyang Xie
Publisher:
ISBN:
Category :
Languages : en
Pages : 320
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 320
Book Description
Diamond Thin Films
Author: Ashok Kumar Dua
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 118
Book Description
Dua, former head of the materials science section at the Bhabha Atomic Research Center in India, examines the past, present, and future of diamond thin films. He details their methods of preparation and characterization, and the mechanisms of nucleation, growth, and epitaxy of CVD diamond. Reactor-scale modeling, in situ diagnostics, and the processing of diamond films are some other topics covered. Concluding chapters look ahead to expected applications, recent developments, and new ideas in the field. There is no subject index. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 118
Book Description
Dua, former head of the materials science section at the Bhabha Atomic Research Center in India, examines the past, present, and future of diamond thin films. He details their methods of preparation and characterization, and the mechanisms of nucleation, growth, and epitaxy of CVD diamond. Reactor-scale modeling, in situ diagnostics, and the processing of diamond films are some other topics covered. Concluding chapters look ahead to expected applications, recent developments, and new ideas in the field. There is no subject index. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).
Substrate Dependence on the Growth and Texture of Lead Titanate and Lead Zirconate Titanate Thin Films by Metal Organic Chemical Vapor Deposition
Author: Bi-Ming Yen
Publisher:
ISBN:
Category :
Languages : en
Pages : 386
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 386
Book Description