The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform

Koichi Kamisako - One of the best experts on this subject based on the ideXlab platform.

  • Synthesis of Au-catalyzed silicon nanowires by hydrogen radical-assisted Deposition Method
    Metals and Materials International, 2009
    Co-Authors: Minsung Jeon, Koichi Kamisako
    Abstract:

    Silicon nanowires (SiNWs) catalyzed by gold (Au) nanoparticles were synthesized from silane gas by the hydrogen radical-assisted Deposition Method. The gold particles used as catalyst were fabricated from an evaporated Au film on a glass substrate by hydrogen radical treatment and the structural properties were estimated. Subsequently, large quantities of SiNWs with various crystal diffraction phases were synthesized on this substrate. The SiNWs were whisker-like and were typically several microns long with diameters of tens of nanometers near the bottom and several nanometers at the top. Hydrogen radical treatments for fabricating catalyst particles and the subsequent Deposition Method for synthesizing SiNWs are proposed and discussed.

  • Synthesis of gallium-catalyzed silicon nanowires by hydrogen radical-assisted Deposition Method
    Journal of Industrial and Engineering Chemistry, 2008
    Co-Authors: Minsung Jeon, Yoshihiro Tomitsuka, Koichi Kamisako
    Abstract:

    Abstract Gallium-catalyzed silicon nanowires (SiNWs) were synthesized by the hydrogen radical-assisted Deposition Method. The voluminous quantities of SiNWs with various crystal growth directions were synthesized and their characteristics were estimated by using XRD, FE-SEM, TEM and EDX analyses. Most of the Ga-capped SiNWs were directly grown with some smoothly curved SiNWs. Large quantities of small-SiNWs with diameters of 20–80 nm were tree-likely grown on the large-SiNWs surface. The diameters of large-SiNWs were approximately 200 nm–2 μm. Furthermore, a simple model of growth mechanism for sub-grown silicon nanowires by the hydrogen radical-assisted Deposition Method was proposed.

Roman S. Dygdala - One of the best experts on this subject based on the ideXlab platform.

  • Growth of Nd:YAG films by the pulsed laser Deposition Method
    Surface and Coatings Technology, 2004
    Co-Authors: Slawomir Kulesza, Roman Rumianowski, Franciszek Rozpłoch, Roman S. Dygdala
    Abstract:

    Abstract This work presents X-ray diffraction results about the structural properties of thin yttrium aluminum garnet films doped with neodymium. For this purpose, series of samples on silicon substrates were made by the pulsed laser Deposition Method at various Deposition conditions. Successful growth was achieved as long as the substrate temperature was maintained at least at 450 °C. Applied bias was found to exert a detrimental effect on the quality of the films. Laser-produced plasma plume of Y 2 O 3 investigations by means of time-of-flight mass spectrometer were also performed.

Minsung Jeon - One of the best experts on this subject based on the ideXlab platform.

  • Synthesis of Au-catalyzed silicon nanowires by hydrogen radical-assisted Deposition Method
    Metals and Materials International, 2009
    Co-Authors: Minsung Jeon, Koichi Kamisako
    Abstract:

    Silicon nanowires (SiNWs) catalyzed by gold (Au) nanoparticles were synthesized from silane gas by the hydrogen radical-assisted Deposition Method. The gold particles used as catalyst were fabricated from an evaporated Au film on a glass substrate by hydrogen radical treatment and the structural properties were estimated. Subsequently, large quantities of SiNWs with various crystal diffraction phases were synthesized on this substrate. The SiNWs were whisker-like and were typically several microns long with diameters of tens of nanometers near the bottom and several nanometers at the top. Hydrogen radical treatments for fabricating catalyst particles and the subsequent Deposition Method for synthesizing SiNWs are proposed and discussed.

  • Synthesis of gallium-catalyzed silicon nanowires by hydrogen radical-assisted Deposition Method
    Journal of Industrial and Engineering Chemistry, 2008
    Co-Authors: Minsung Jeon, Yoshihiro Tomitsuka, Koichi Kamisako
    Abstract:

    Abstract Gallium-catalyzed silicon nanowires (SiNWs) were synthesized by the hydrogen radical-assisted Deposition Method. The voluminous quantities of SiNWs with various crystal growth directions were synthesized and their characteristics were estimated by using XRD, FE-SEM, TEM and EDX analyses. Most of the Ga-capped SiNWs were directly grown with some smoothly curved SiNWs. Large quantities of small-SiNWs with diameters of 20–80 nm were tree-likely grown on the large-SiNWs surface. The diameters of large-SiNWs were approximately 200 nm–2 μm. Furthermore, a simple model of growth mechanism for sub-grown silicon nanowires by the hydrogen radical-assisted Deposition Method was proposed.

Slawomir Kulesza - One of the best experts on this subject based on the ideXlab platform.

  • Growth of Nd:YAG films by the pulsed laser Deposition Method
    Surface and Coatings Technology, 2004
    Co-Authors: Slawomir Kulesza, Roman Rumianowski, Franciszek Rozpłoch, Roman S. Dygdala
    Abstract:

    Abstract This work presents X-ray diffraction results about the structural properties of thin yttrium aluminum garnet films doped with neodymium. For this purpose, series of samples on silicon substrates were made by the pulsed laser Deposition Method at various Deposition conditions. Successful growth was achieved as long as the substrate temperature was maintained at least at 450 °C. Applied bias was found to exert a detrimental effect on the quality of the films. Laser-produced plasma plume of Y 2 O 3 investigations by means of time-of-flight mass spectrometer were also performed.

Satoshi Kishida - One of the best experts on this subject based on the ideXlab platform.

  • Coating of γ-Al2O3 on the stainless steel substrate by electrophoretic Deposition Method.
    Journal of environmental sciences (China), 2009
    Co-Authors: Satoshi Kishida
    Abstract:

    γ-Al2O3 coatings were prepared on aluminum-free stainless steel (SUS304) by electrophoretic Deposition Method. Both X-ray diffraction and scanning electron microscopy were used to study the crystalline structure and morphological features of the coatings. Themo gravimetry-differential termal analysis (TG-DTA) is used to study the thermo-chimerical reaction behavior of coatings. Catalytic activity of coatings is determined by degrading of NOx. The results indicated that the thickness of the coatings onto SUS304 could reach 5 μm without any exfoliation at optimized conditions. Catalytic properties of samples coated by electrophoretic Deposition Method were highly enhanced as compared with that of samples prepared by the dip coating Method.