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Thin Film Structures (thin + film_structure)
Selected AbstractsThin Films: Self-Assembled Heteroepitaxial Oxide Nanocomposite Thin Film Structures: Designing Interface-Induced Functionality in Electronic Materials (Adv. Funct.ADVANCED FUNCTIONAL MATERIALS, Issue 13 2010Mater. Achieving self-assembling/self-organizing systems is the holy grail of nanotechnology, as presented in the Feature Article by J. L. MacManus-Driscoll on page 2035. Multifunctionality or enhanced functionality can emerge as a result of self-assembly of two oxides in nano-composite films. Checkerboards, ordered nanochains, nanorods, or random nanoparticle structures are all possible structures and they influence the resulting properties in different ways. It is now possible to predict the nanocomposite structure that will form from a given starting composition. [source] Self-Assembled Heteroepitaxial Oxide Nanocomposite Thin Film Structures: Designing Interface-Induced Functionality in Electronic MaterialsADVANCED FUNCTIONAL MATERIALS, Issue 13 2010Judith L. MacManus-Driscoll Abstract Achieving self-assembling/self-organizing systems is the holy grail of nanotechnology. Spontaneous organization is not unique to the physical sciences since nature has been producing such systems for millions of years. In biological systems global patterns emerge from numerous interactions among lower-level components of the system. The same is true for physical systems. In this review, the self-assembly mechanisms of oxide nanocomposite films, as well as the advantageous functionalities that arise from such ordered structures, are explored. [source] Development of flame retardancy properties of new halogen-free phosphorous doped SiO2 thin films on fabricsJOURNAL OF APPLIED POLYMER SCIENCE, Issue 6 2007Aysun Cireli Abstract In this study, flame retardancy properties of fabrics treated with phosphorous (P) doped and undoped SiO2 thin films were developed by sol,gel technique. As to this aim, P-doped and undoped SiO2 film were coated on cotton fabric from the solutions prepared from P, Si-based precursors, solvent, and chelating agent at low temperature in air using sol,gel technique. To determine solution characteristics, which affect thin film structure, turbidity, pH values, and rheological properties of the prepared solutions were measured using a turbidimeter, a pH meter, and a rheometer machines before coating process. The thermal, structural, and microstructural characterization of the coating were done using differential thermal analysis/thermograviometry, fourier transform infrared spectroscopy, X-ray diffractometry, and scanning electron microscopy. In addition, tensile strength, wash fastness, flame retandancy, and lightness properties of the coated fabrics were determined. To compensate the slight loss of tensile strength of samples, which occurred at the treated fabrics with P-doped Si-based solutions, the cotton fabrics were coated with polyurethane films during second step. In conclusion, the flame retardant cotton fabric with durability of washing as halogen-free without requiring after treatment with formaldehyde was fabricated using sol,gel processing for the first time. Moreover the cotton fabrics, which were treated with P-doped Si-based solutions and then coated with polyurethane at second step, still has got nonflammable property. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007 [source] Surface engineering of styrene/PEGylated-fluoroalkyl styrene block copolymer thin filmsJOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 1 2009Elisa Martinelli Abstract A series of diblock copolymers prepared from styrenic monomers was synthesized using atom transfer radical polymerization. One block was derived from styrene, whereas the second block was prepared from a styrene modified with an amphiphilic PEGylated-fluoroalkyl side chain. The surface properties of the resulting polymer films were carefully characterized using dynamic contact angle, XPS, and NEXAFS measurements. The polymer morphology was investigated using atomic force microscope and GISAXS studies. The block copolymers possess surfaces dominated by the fluorinated unit in the dry state and a distinct phase separated microstructure in the thin film. The microstructure of these polymers is strongly influenced by the thin film structure in which it is investigated. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 267,284, 2009 [source] | ||||||||||