Search for dissertations about: "organic solar"

Showing result 1 - 5 of 189 swedish dissertations containing the words organic solar.

  2. 1. Synthesis of Organic Chromophores for Dye Sensitized Solar Cells

    Author : Daniel Hagberg; Licheng Sun; Olof Ramström; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Organic Chromophores; Dye Sensitized Solar Cells; Organic chemistry; Organisk kemi;

    Abstract : This thesis is divided into four parts with organic chromophores for dye sensitized solar cells as the common feature and an introduction with general concepts of the dye sensitized solar cells. The first part of the thesis describes the development of an efficient organic chromophore for dye sensitized solar cells. READ MORE

  4. 2. Organic Hole-Transport Materials for Perovskite Solar Cells

    Author : Linqin Wang; Licheng Sun; Nam-Gyu Park; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Hole-transport material; Photovoltaic device; Perovskite solar cell; Dopant-free; Carbazole; Spiro[fluorene-9; 9 -xanthene]; Small organic molecule; Crosslinked polymer; Solution-processed.; Kemi; Chemistry;

    Abstract : Research on perovskite solar cells (PSCs) has undergone dramatic development since the first cells were reported in 2009, and the past decade has witnessed a significant breakthrough on their power conversion efficiencies (PCEs) from 3.8% to 25%. READ MORE

  5. 3. Design, Synthesis and Properties of Organic Sensitizers for Dye Sensitized Solar Cells

    Author : Karl Martin Karlsson; Licheng Sun; Jaejung Ko; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; Acceptor; chromophore; donor; dye; sensitized; energy level; HOMO LUMO; linker; phenoxazine; sensitizer; solar cell; triphenylamine; Chemistry; Kemi; Organic synthesis; Organisk syntes;

    Abstract : This thesis gives a detailed description of the design and synthesis of new organic sensitizers for Dye sensitized Solar Cells (DSCs). It is divided in 7 chapters, where the first gives an introduction to the field of DSCs and the synthesis of organic sensitizers. READ MORE

  6. 4. Molecular design, synthesis and performance evaluation of phenothiazine-based small molecules for efficient organic solar cells

    Author : Srikanth Revoju; Bertil Eliasson; Haining Tian; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Organic solar cell; small molecule donors; phenothiazine; power conversion efficiency; organisk kemi; Organic Chemistry;

    Abstract : Photovoltaics offers one of the most promising routes to generate electricity in a clean way. As an emerging technology in photovoltaics, organic solar cells (OSC) have attracted a great deal of attention owing to their potential low-cost, lightweight, flexibility and solution processability. READ MORE

  7. 5. Synthesis and Evaluation of Photoactive Pyridine Complexes for Electron Transfer Studies and Photoelectrochemical Applications

    Author : Judit Modin; Helena Grennberg; Leif Hammarström; Jean-François Nierengarten; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Fullerene; solar cell; bipyridines; Ruthenium; organic synthesis; Organisk kemi; Organic chemistry; Organisk kemi;

    Abstract : In this thesis, the preparation of new photoactive substances containing mono- and bipyridines coordinated to ruthenium is presented together with initial evaluations of their photoelectrochemical and photophysical properties. Complexes of the type Ru(bpy)2(4-X-py)2 (X = SH, COOH) were prepared and used in Grätzel-type solar cells based on ZnO. READ MORE