Search for dissertations about: "donor energies"

Showing result 6 - 10 of 16 swedish dissertations containing the words donor energies.

  2. 6. Interfaces in Organic Solar Cells

    Author : Xian'e Li; Mats Fahlman; Xianjie Liu; Artem Bakulin; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Organic semiconductors (OSs), the promising candidates for the next generation electronic devices, have shown their advantages of light weight, flexibility, semi-transparency, tunable optical gaps, and energy levels, in the development history of over 70 years. OSs have been widely used in versatile applications such as organic light-emitting diodes, organic field-effect transistors, organic photodetectors, and organic solar cells (OSCs) which are mainly studied in this thesis. READ MORE

  4. 7. Optical properties of some complex defects in silicon

    Author : Johan Svensson; G. D Watkins; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : lnfrared absorption spectroscopy has been used study transitions between electronic states related to some complex defects in silicon. Three different defects have been studied: a complex defect involving carbon as one of its constituents, a divacancy, and a defect found in silicon containing tin. READ MORE

  5. 8. The Influence of Energy Levels on Voltage Losses and Charge Generation in Organic Solar Cells

    Author : Jianwei Yu; Feng Gao; Olle Inganäs; Niclas Solin; Christoph J. Brabec; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Organic solar cells (OSCs) are a next-generation photovoltaic technology that convert solar energy to electrical energy. They have attracted great attention due to their advantages of low cost, ease of synthesis, light weight, mechanical flexibility, and roll-to-roll processability. READ MORE

  6. 9. The Effect of Mg Doping on Optical and Structural Properties of GaN

    Author : Sergey Khromov; Galia Pozina; Lars Hultman; Linköpings universitet; []
    Keywords : ;

    Abstract : Mg is the most commonly used p-type dopant for GaN, however the impact of Mg incorporation on structural, morphological and optical properties of GaN is still not fully understood. Another research challenge is to understand and improve the properties of nonpolar GaN as it allows the fabrication of more efficient optoelectronic devices due to the absence of polarization fields. READ MORE

  7. 10. Quantum Chemical Studies of Enzymatic Reaction Mechanisms

    Author : Bianca Manta; Fahmi Himo; Lubomir Rulisek; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; density functional theory; B3LYP; enzyme; cluster approach; mechanism; zinc; manganese; cytosine deaminase; ω-transaminase; dinitrogenase reductase-activating glycohydrolase; dual substrate recognition; organisk kemi; Organic Chemistry;

    Abstract : Computer modeling of enzymes is a valuable complement to experiments. Quantum chemical studies of enzymatic reactions can provide a detailed description of the reaction mechanism and elucidate the roles of various residues in the active site. READ MORE