Search for dissertations about: "organic semiconductor"
Showing result 16 - 20 of 107 swedish dissertations containing the words organic semiconductor.
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16. Exploring Organic Dyes for Grätzel Cells Using Time-Resolved Spectroscopy
Abstract : Grätzel cells or Dye-Sensitized Solar Cells (DSSCs) are considered one of the most promising methods to convert the sun's energy into electricity due to their low cost and simple technology of production. The Grätzel cell is based on a photosensitizer adsorbed on a low band gap semiconductor. READ MORE
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17. Correlating Nanostructure and Electronic Properties of Organic Semiconductors by Electron Microscopy
Abstract : Organic semiconductors enable fabrication and efficient processing of electronic devices with light weight, mechanical flexibility and tuneable properties. Despite significant progress in the last decades, efficiencies and long-term stabilities of these systems still need to be improved. READ MORE
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18. Structure and morphology control of organic semiconductors for functional optoelectronic applications
Abstract : The functionality and application of organic semiconductors are largely dependent on their constituent structure and morphology. This thesis presents a number of functional and novel approaches for the control and tuning of structural and morphological features of a variety of organic semiconductor materials, and also demonstrates that these approaches can be utilized for improved device operation of field-effect transistors, organic solar cells and light-emitting electrochemical cells. READ MORE
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19. Molecular Interaction of Thin Film Photosensitive Organic Dyes on TiO2 Surfaces
Abstract : The photosensitive molecule adsorption on titanium dioxide (TiO2) forms the so-called “dye sensitized TiO2” system, a typical organic/oxide heterojunction, which is of great interest in catalysis and energy applications, e.g. dye-sensitized solar cell (DSSC). Traditionally, the transition metal complex dyes are the focus of the study. READ MORE
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20. Studies of The Electronic Structure of CuPc and PTCDA - Two Molecular Organic Semiconductors
Abstract : Since the discovery of organic materials with conducting and semiconducting proper¬ties a few decades ago, the research in this field has intensified and has become in¬creasingly important. Expected advantages of both economical and technological nature have been powerful driving forces in this development, and today organic based devices are becoming a reality for commercial applications. READ MORE