Search for dissertations about: "spin-coating."

Showing result 1 - 5 of 43 swedish dissertations containing the word spin-coating..

  1. 1. Structure evolution of spin-coated phase separated EC/HPC films

    Author : Pierre Carmona; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spin-coating; controlled drug release; porous film; drug delivery; confocal laser scanning microscope; kinetics; phase separation mechanisms; cellulose; biopolymer; phase separation;

    Abstract : Porous phase-separated films made of ethylcellulose (EC) and hydroxypropylcellulose (HPC) are commonly used for controlled drug release. The structure of these thin films is controlling the drug transport from the core to the surrounding liquid in the stomach or intestine. However, detailed understanding of the structure evolution is lacking. READ MORE

  2. 2. On-chip electrochemical capacitors and piezoelectric energy harvesters for self-powering sensor nodes

    Author : Agin Vyas; Chalmers University of Technology; []
    Keywords : Energy storage; 2DOF; sensor node; Energy harvesting; piezoelectric energy harvesters; graphene oxide; spin coating; MEMS; Microsupercapacitors;

    Abstract : On-chip sensing and communications in the Internet of things platform have benefited from the miniaturization of faster and low power complementary-metal-oxide semiconductor (CMOS) microelectronics. Micro-electromechanical systems technology (MEMS) and development of novel nanomaterials have further improved the performance of sensors and transducers while also demonstrating reduction in size and power consumption. READ MORE

  3. 3. Preparation and Properties of Surface Modified Thin Polymer Films

    Author : Sofia Kihlman Øiseth; Chalmers University of Technology; []
    Keywords : aminodextran; plasma polymerisation; polymer films; high-density polyethylene HDPE ; UV ozone treatment; surface modification; glow discharge plasma; in situ control; spin coating;

    Abstract : This thesis deals with preparation, modification and characterisation of thin polymer films. Most of the work has been performed using thin films of high-density polyethylene (HDPE) as a model system for systematic surface modifications by glow discharge plasma and UV/ozone treatments. READ MORE

  4. 4. Thin films of polyfluorene:fullerene blends - Morphology and its role in solar cell performance

    Author : Cecilia Björström Svanström; Ellen Moons; Jean Manca; Karlstads universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Polymer Solar Cells; Polymer Blends; Morphology; Polyfluorene; PCBM; AFM; SIMS; Spin-Coating; Surface Directed Spinodal Decomposition; Physics; Fysik; Physics; Fysik;

    Abstract : The sun provides us daily with large quantities of energy in the form of light. With the world’s increasing demand of electrical energy the prospect of converting this solar light into electricity is highly tempting. In the strive towards mass-production and low cost solar cells, new types of solar cells are being developed, e.g. READ MORE

  5. 5. Structure evolution of phase-separated EC/HPC films for controlled drug release

    Author : Pierre Carmona; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; confocal laser scanning microscope; porous film; controlled drug release; phase separation kinetics; drug delivery; biopolymer; phase separation mechanisms; cellulose; coarsening; spin-coating.; electron microscopy;

    Abstract : Porous phase-separated ethylcellulose/hydroxypropylcellulose (EC/HPC) films are used to control drug transport out of pharmaceutical pellets. The drug transport rate is determined by the structure of the porous films that are formed as the water-soluble HPC leaches out. READ MORE