Digitální knihovnaUPCE
 

Diplomové práce / Theses ÚAFM FCHT (Ing.)

Permanentní URI k tomuto záznamuhttps://hdl.handle.net/10195/34629

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  • Náhled
    Diplomová práceOtevřený přístup
    Self-crosslinking film-forming latexes prepared using sunflower oil-based monomer
    (Univerzita Pardubice, 2024) Ebukolo, Nicholas; Machotová, Jana
    The bio-based monomer, specifically acrylated methyl ester derived from sunflower oil, was incorporated to formulate polymer latexes for coating applications. The content of the bio-based monomer building units in the copolymer chain structure ranged from 5 to 30 wt. %. The emulsion polymerization of these bio-based monomers showed successful results, characterized by low coagulum levels (below 3%) and high monomer conversion rates (around 95%). The integration of the bio-based derivatives into the polymer latexes was confirmed by infrared spectroscopy. In addition, asymmetric flow fractionation coupled with multi-angle light scattering was used to analyze the molar mass distribution of the synthesized copolymers. The effectiveness of both anionic non-polymerizable and polymerizable emulsifiers was evaluated to determine the stability of the prepared latexes under elevated temperature conditions and their water resistance.
  • Náhled
    Diplomová práceOmezený přístup
    Organic photovoltaic cells with HTL layer based on conductive polymers
    (Univerzita Pardubice, 2024) Amponsah, Bright; Syrový, Tomáš
    This thesis is divided into a theoretical and an experimental part. The theoretical part deals with organic photovoltaics and describes different materials together with the literature review and description of different types of structures used in the organic photovoltaic cell. Further, it focuses on characterization methods used for organic photovoltaic cells. The main topic of this thesis then becomes parameters for photovoltaic devices such as open circuit voltage, short current, fill factor, and power conversion efficiency. Finally, the theoretical part mentions some picked technologies of deposition/preparation of organic photovoltaic solar cells and experimental methods for their evaluation.