Search for dissertations about: "wetting layer"

Showing result 1 - 5 of 35 swedish dissertations containing the words wetting layer.

  1. 1. Interfacial behaviour of surfactants and enzymes: studies at model surfaces

    Author : Olaspers Jonny Eriksson; Fysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Surface and boundary layery chemistry; gränsskikt; enzymatic degradation; cellulase; model film; cellulose; QCM; ellipsometry; surfactant; three-phase contact line; adsorption; wetting; Ytkemi;

    Abstract : This thesis presents results from experimental studies of the interfacial behaviour of surfactants and enzymes at model surfaces. The main technique used throughout the work was ellipsometry. READ MORE

  2. 2. Super liquid-repellent surfaces - interactions and gas capillaries

    Author : Mimmi Eriksson; Per M. Claesson; Agne Swerin; Marie Skepö; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; superhydrophobicity; superamphiphobicity; wetting; capillary forces; AFM; LSCM; superhydrofobicitet; superamfifobicitet; vätning; kapillärkrafter; AFM; LSCM; Kemi; Chemistry;

    Abstract : Super liquid-repellent surfaces have attracted a lot of interest in recent years. In addition to the large scientific interest there are many potential technological applications ranging from self-cleaning materials to microfluidic devices. READ MORE

  3. 3. Surfactants at non-polar surfaces

    Author : Marcus Persson; KTH; []
    Keywords : nonionic surfactants; SDS; surface tension; wetting; surface force; disjoining pressure isotherm; adhesion;

    Abstract : The aim of this thesis work was to investigate theadsorption of surfactants to different nonpolar interfaces.Particularly, the effects of the polar group and the nature ofthe hydrophobic interface were elucidated. The interfacialbehavior of the liquid-vapor interface was investigated bymeans of surface tension measurements. READ MORE

  4. 4. Temperature dependent atomic-scale modeling of interfaces in cemented carbides

    Author : Martin Gren; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; hardmetals; cemented carbides; analytical bond order potential; free energies; wetting; WC-Co; phase diagram; interfaces; complexions; density functional theory;

    Abstract : Material properties can now be calculated directly from first principles using density functional theory (DFT) which has a great predictive power and can, in cases that are difficult to approach experimentally, provide crucial insights on the atomic and electronic level. Such cases include the thermodynamics of interfaces and surfaces which are crucial factors for the structure and macroscopic properties of many materials, where cemented carbides are one example. READ MORE

  5. 5. Optical spectroscopy of InGaAs quantum dots

    Author : Arvid Larsson; Per Olof Holtz; Artur Zrenner; Linköpings universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; quantum dot; semiconductor; optical properties; spin; transport; wetting layer; polarization; kvantprick; halvledare; optiska egenskaper; spin; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; Materials science; Teknisk materialvetenskap; Condensed matter physics; Kondenserade materiens fysik; Semiconductor physics; Halvledarfysik;

    Abstract : The work presented in this thesis deals with optical studies of semiconductor quantum dots (QDs) in the InGaAs material system. It is shown that for self-assembled InAs QDs, the interaction with the surrounding GaAs barrier and the InAs wetting layer (WL) in particular, has a very large impact on their optical properties. READ MORE