Search for dissertations about: "Lead Sulfide"

Showing result 1 - 5 of 11 swedish dissertations containing the words Lead Sulfide.

  1. 1. Quantum Dot Solar Cells: Towards Environmentally Friendly Materials

    Author : Viktor A. Öberg; Erik Johansson; Muhammet S. Toprak; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Quantum dots; Nano-crystals; Energy conversion; Solar cells; Quantum dot solar cells; Low toxicity; Silver Sulfide; Silver Bismuth Sulfide; Lead Sulfide; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

    Abstract : To decrease the world’s energy dependence on fossil fuels, energy production and specifically electricity production needs to shift to more sustainable alternatives. One such alternative is solar cells as they directly convert energy emitted from the sun into electricity. READ MORE

  2. 2. Electronic Structures and Energy Level Alignment in Mesoscopic Solar Cells : A Hard and Soft X-ray Photoelectron Spectroscopy Study

    Author : Rebecka Lindblad; Håkan Rensmo; Hans Seigbahn; Anders Hagfeldt; Erik Johansson; Marcus Bär; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Photoelectron spectroscopy; HAXPES; PES; XPS; electronic structure; energy level alignment; mesoscopic solar cell; hole conductor; perovskite; dye-sensitized; semiconductor-sensitized; TiO2; ZnO; spiro-OMeTAD; P3HT; DEH; metal sulfide; Li-TFSI; Co III complex; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : Photoelectron spectroscopy is an experimental method to study the electronic structure in matter. In this thesis, a combination of soft and hard X-ray based photoelectron spectroscopy has been used to obtain atomic level understanding of electronic structures and energy level alignments in mesoscopic solar cells. READ MORE

  3. 3. Dental acrylates and methacrylates - Interactions with the immune system

    Author : Sara Alizadehgharib; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Acrylates; Methacrylates; Antibodies; NLRP3 inflammasome; Cytokines; Mice; Hydrogen sulfide;

    Abstract : Professionals working in dentistry have reported adverse effects, such as allergic contact dermatitis due to exposure to different methacrylates/acrylates. Leakage of such monomers from dental fillings due to incomplete curing is also common. READ MORE

  4. 4. Some aspects on TCF-bleachability of softwood alkaline pulps

    Author : Karin Sjöström; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bleachability; chlorine-free bleaching; softwoods; kraft pulps; alkaline sulfite pulps; oxygen; hydrogen peroxide; ozone; hydrogen sulfide ion; hydroxide ion; temperature; sodium ion.; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Abstract : The bleachability of softwood oxygen delignified pulps has been studied, i.e. the ease (requirement of bleaching chemicals) with which the pulps can be brightened to a target brightness in totally chlorine free (TCF) bleaching stages, including hydrogen peroxide, ozone and chelating agent stages. READ MORE

  5. 5. Responses to reduced industrial metal emissions : An ecotoxicological study on Pied Flycatcher (Ficedula hypoleuca, Aves)

    Author : Åsa Berglund; Erik Nyholm; John Elliott; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; Toxicology; Toxikologi; Other biology; Övrig biologi; ekotoxikologi; Ecotoxicology; zooekologi; Animal Ecology; Environmental Science; miljövetenskap;

    Abstract : Metals have been used by humans for thousands of years, and this has resulted in increased concentrations in the biosphere. The environment around point-sources, such as mines and smelters, are of particular concern, as metals may accumulate to high concentrations, and potentially reach levels toxic to the local flora and fauna. READ MORE