Download or read book Growth and Characterization of Bismuth Selenide Thin Films by Chemical Vapor Deposition written by Joseph Brom and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Topological insulators are a recently discovered class of materials that have garnered much interest due to their unique surface states. With its relatively high band gap (0.3eV) and nearly ideal band structure, Bi2Se3 has been a primary material of interest in the study of topological insulating behavior. However, several factors have made this study difficult. Bi2Se3 typically has a high native selenium vacancy concentration, and selenium vacancies act as donors in the material, leading to a high bulk electron concentration. The surface of Bi2Se3 has also been shown to be susceptible to environmental doping when exposed to ambient air. Combining these two factors means that Bi2Se3 is usually highly n-type doped, making it difficult to study the surface conducting states by transport measurements. This study investigated the use of two different chemical vapor deposition (CVD) techniques for the growth of Bi2Se3 thin films on sapphire (001): hybrid physical-chemical vapor deposition (HPCVD) and metal-organic chemical vapor deposition (MOCVD). HPCVD is a process which combines the evaporation of elemental selenium with the thermal decomposition of trimethylbismuth (TMBi). The use of elemental selenium immediately around the substrate provides a high overpressure of selenium, allowing for reduction of the selenium vacancy concentration. Bi2Se3 films grown on sapphire were epitaxial and highly oriented parallel to the substrate giving rise to narrow X-ray rocking curves (full-width-at-half-maximum=160 arcsecs for (006) reflection) and 6-fold rotational symmetry as determined by phi scans. The structural properties were consistent with deposition via a van der Waals epitaxy process. The selenium to bismuth ratio (VI/V) ratio proved important for achieving a reduced electron concentration of

Download or read book Nucleation Epitaxial Growth and Characterization of beta SiC Thin Films on Si by Rapid Thermal Chemical Vapor Deposition written by JiPing Li and published by . This book was released on 1994 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Growth and Thermal Behaviors of Thin Films for the Advanced Gate Stack Grown by Chemical Vapor Deposition written by Taek Soo Jeon and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Characterization of Bismuth and Antimony Thin Films written by Aida R. Berríos Rodríguez and published by . This book was released on 1996 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Novel Route to the Growth of Porous Thin Films by Chemical Vapor Deposition and Their Characterization written by Prahalad Madhavan Parthangal and published by . This book was released on 2004 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electrical and Optical Properties Of Lead Selenide Thin Films By Chemical Bath Deposition written by Dr. Dhananjay Narayan Gujarathi and published by Lulu.com. This book was released on with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Materials Aspect of Thermoelectricity written by Ctirad Uher and published by CRC Press. This book was released on 2016-11-25 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, novel families of materials have been discovered and significant improvements in classical thermoelectric materials have been made. Thermoelectric generators are now being used to harvest industrial heat waste and convert it into electricity. This is being utilized in communal incinerators, large smelters, and cement plants. Leading car and truck companies are developing thermoelectric power generators to collect heat from the exhaust systems of gasoline and diesel engines. Additionally, thermoelectric coolers are being used in a variety of picnic boxes, vessels used to transport transplant organs, and in air-conditioned seats of mid-size cars. Consisting of twenty-one chapters written by top researchers in the field, this book explores the major advancements being made in the material aspects of thermoelectricity and provides a critical assessment in regards to the broadening of application opportunities for thermoelectric energy conversion.

Download or read book Synthesis and Characterization of Precursors for Chemical Vapor Deposition of Metal Oxide Thin Films written by May Nyman and published by . This book was released on 1992 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book THE GROWTH AND CHARACTERIZATION OF GALIUM SELENIDE THIN FILMS written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: -cm)-1 and 5.9 –.

Download or read book Chemical Vapor Deposition 1960 1980 written by Donald T. Hawkins and published by Springer. This book was released on 1981-11-30 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Silicon Dioxide Thin Films by Low Pressure Chemical Vapor Deposition written by Sutham Niyomwas and published by . This book was released on 1997 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integrated Thin Films and Applications written by R. Kumar Pandey and published by . This book was released on 1998 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers 21 selected papers from a May 1997 symposium, organized in two sections on film growth techniques and applications, and characterization and effects of processing conditions. Subjects include controlled growth of perovskite thin films, single crystal silicon as a micromechanical material, gro

Download or read book Synthesis and Characterization of Silicon Dioxide Thin Films by Low Pressure Chemical Vapor Deposition Using Ditertiarybutylsilane and Oxygen written by Sung-Jun Lee and published by . This book was released on 1996 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metal organic Chemical Vapor Deposition of Indium Oxide Based Transparent Conducting Oxide Thin Films written by Jun Ni and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Four novel diamine adducts of bis(hexafluoroacetylacetonato)zinc [Zn(hfa)2·(diamine)] can be synthesized in a single step reaction. Single crystal x-ray diffraction studies reveal monomeric, six-coordinate structures. The thermal stabilities and vapor phase transport properties of these complexes are considerably greater than those of conventional solid/liquid zinc metal-organic chemical vapor deposition (MOCVD) precursors. Of the four complexes, bis(1,1,1,5,5,5-hexafluoro-2,4-pentadionato)(N,N '-diethylethylenediamine)zinc [Zn(hfa)2 ( N,N'-DEA)], is particularly effective in the growth of thin films of the transparent conducting oxide Zn- and Sn-doped In2O3 (ZITO) due to its superior volatility and low melting point of 64°C.

Download or read book Applications of Laser Ablation written by Dongfang Yang and published by BoD – Books on Demand. This book was released on 2016-12-21 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser ablation refers to the phenomenon in which a low wavelength and short pulse (ns-fs) duration of laser beam irradiates the surface of a target to induce instant local vaporization of the target material generating a plasma plume consisting of photons, electrons, ions, atoms, molecules, clusters, and liquid or solid particles. This book covers various aspects of using laser ablation phenomenon for material processing including laser ablation applied for the deposition of thin films, for the synthesis of nanomaterials, and for the chemical compositional analysis and surface modification of materials. Through the 18 chapters written by experts from international scientific community, the reader will have access to the most recent research and development findings on laser ablation through original research studies and literature reviews.

Download or read book Chemical Abstracts written by and published by . This book was released on 1991 with total page 2682 pages. Available in PDF, EPUB and Kindle. Book excerpt: