Search for dissertations about: "organic solar"

Showing result 6 - 10 of 211 swedish dissertations containing the words organic solar.

  2. 6. The study of organic dyes for p-type dye-sensitized solar cells

    Author : Peng Qin; Licheng Sun; Michael Grätzel; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi;

    Abstract : This thesis concerns the study of D–π–A type dyes as sensitizers for NiO-based p-type dye-sensitized solar cells. The focus has been on the design and synthesis of efficient dyes and the identification of parameters limiting the solar cell performance. READ MORE

  4. 7. Norbornadienes for molecular solar thermal energy storage

    Author : Maria Quant; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; energy storage; solar energy; norbornadiene - quadricyclane photo switches; synthesis of norbornadienes.;

    Abstract : Over the last decade, there has been great scientific progress in terms of harvesting solar energy but the area of storing energy is still facing challenges. One approach to store solar energy is via photoinduced isomerization of chemical bonds, referred to as molecular solar thermal energy storage (MOST). READ MORE

  5. 8. Molecular Engineering of D-π-A Dyes for Dye-Sensitized Solar Cells

    Author : Erik Gabrielsson; Licheng Sun; Peter Bäuerle; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dye-sensitized solar cells; Molecular electronics; Molecular engineering; Organic synthesis; Photovoltaics; Kemi; Chemistry;

    Abstract : Dye-sensitized solar cells (DSSCs) present an interesting method for the conversion of sunlight into electricity. Unlike in other photovoltaic technologies, the difficult tasks of light absorption and charge transport are handled by two different materials in DSSCs. READ MORE

  6. 9. Norbornadienes for Solar Thermal Energy Storage and New Applications

    Author : Ambra Dreos; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; thermal energy storage; molecular logic; Solar energy; molecular switch- es; energy conversion; quadricyclane; molecular keypad locks; norbornadiene;

    Abstract : The energy demand worldwide is steadily increasing, therefore it is fundamental to efficiently utilise renewable energy resources. Energy storage technologies are partic- ularly relevant in order to be able to exploit renewable energy resources such as solar energy, since these are typically intermittent and not evenly distributed. READ MORE

  7. 10. Photoelectrochemical studies of dye-sensitized solar cells using organic dyes

    Author : Tannia Marinado; Anders Hagfeldt; Katoh Ryuzi; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; additive; charge recombination; coadsorbent; conduction band shift; dye-sensitized; electron lifetime; electron-transfer; organic dye; photoelectrochemical; photovoltaic; sensitizer; semiconductor; solar cell; solar cell efficiency; titanium dioxide; Physical chemistry; Fysikalisk kemi;

    Abstract : The dye-sensitized solar cell (DSC) is a promising efficient low-cost molecular photovoltaic device. One of the key components in DSCs is the dye, as it is responsible for the capture of sunlight. State-of-the-art DSC devices, based on ruthenium dyes, show record efficiencies of 10-12 %. READ MORE