Search for dissertations about: "scanning and transmission electron microscopy"

Showing result 16 - 20 of 180 swedish dissertations containing the words scanning and transmission electron microscopy.

  2. 16. The high Arctic summer aerosol : Size, chemical composition, morphology and evolution over the pack-ice

    Author : Evelyne Hamacher-Barth; Caroline Leck; Stephan Weinbruch; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arctic; aerosol; marine gel; electron microscopy; EDX-spectroscopy; chemical composition; morphology; size distribution; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Abstract : Aerosol particles, especially in the high Arctic are still not very well represented in climate models. Particle size and number concentrations are strongly under-predicted and temporal variations of aerosol composition and size are still not very well understood, mainly due to the sparsity of observations. READ MORE

  4. 17. Characterizing cavity containing materials using electron microscopy : A study of metal oxides, mesoporous crystals and porous material containing nanosized metal-particles

    Author : Miia Klingstedt; Osamu Terasaki; Syo Matsumura; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Electron microscopy; Structural Chemistry; strukturkemi;

    Abstract : This thesis concerns the characterization of novel materials by utilizing electron microscopy techniques. The examined materials contain cavities with certain attributes that enables desired properties for applications such as gas separation, catalysis and fuel cells. READ MORE

  5. 18. Structure Evolution during Phase Separation and Gelation of Biopolymer Mixtures

    Author : Niklas Lorén; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microstructure; gelatin maltodextrin; biopolymer mixtures; structure evolution; phase separation; stereology; confocal laser scanning microscopy; image analysis; spinodal decomposition; transmission electron microscopy; gelation;

    Abstract : This thesis focuses on the kinetics of phase separation and gelation in aqueous mixtures of gelatin and maltodextrin. The structure evolution of these mixtures at different length scales was recorded by confocal laser scanning microscopy (CLSM) and transmission electron microscopy (TEM). The microstructure was quantified by image analysis. READ MORE

  6. 19. Fullerene-like CNx and CPx Thin Films; Synthesis, Modeling, and Applications

    Author : Andrej Furlan; Lars Hultman; Brian Holloway; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phosphorus-carbide CPx ; carbon nitride CNx ; thin films; resilient coatings; magnetron sputtering; theoretical modeling; Material physics with surface physics; Materialfysik med ytfysik;

    Abstract : This Thesis concerns the development of fullerene-like (FL) carbon nitride (CNx) thin films and the discovery of phosphorus-carbide (CPx) compounds. The work dedicated to CPx include first-principles theoretical simulations of the growth and properties of FL-CPx structures. READ MORE

  7. 20. Towards the Integration of Carbon nanostructures into CMOS technology

    Author : Mohammad Kabir; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transmission electron microscopy TEM .; chemical vapour deposition CVD ; electron beam lithography EBL ; carbon nanotube CNT ; silicidation; atomic force microscopy AFM ; carbon nanofiber CNF ; Complementary metal oxide semiconductor CMOS ; dc-glow discharge plasma; growth mechanism; metal catalyst; scanning electron microscopy SEM ;

    Abstract : Relentless efforts for miniaturization of traditional complementary metal oxide semiconductor (CMOS) devices have reached the limit where the device characteristics are governed by quantum phenomena which are difficult to control. This engendered a need for finding alternative new materials that can be engineered to fabricate devices that will possess at least the same or even better performance than existing CMOS devices. READ MORE