Potential Distribution within Organic Solar Cells - Saive, Rebecca
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The sun provides many times the energy we need, making it the most promising energy source. Conversion of sunlight to electrical energy is obtained in photovoltaic (PV) devices. Organic Solar Cells represent a new class of PV devices in which organic molecules serve as semiconductor materials. Although there has been huge progress in the performance of these devices, the physical fundamentals of charge transport still require a complete description. The author developed a powerful and novel method to investigate the cross section of electronic devices using in-situ focused ion beam preparation…mehr

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Produktbeschreibung
The sun provides many times the energy we need, making it the most promising energy source. Conversion of sunlight to electrical energy is obtained in photovoltaic (PV) devices. Organic Solar Cells represent a new class of PV devices in which organic molecules serve as semiconductor materials. Although there has been huge progress in the performance of these devices, the physical fundamentals of charge transport still require a complete description. The author developed a powerful and novel method to investigate the cross section of electronic devices using in-situ focused ion beam preparation and scanning Kelvin probe microscopy. Using this method it was possible for the first time to spatially resolve the open circuit voltage in operating organic solar cells. Furthermore, charge transport loss mechanisms in bulk heterojunction solar cells and the origin of S-shaped current-voltage characteristics were revealed. This dissertation describes preparation techniques, challenges, andresults in an unconcealed way complementing the publications Imaging the electric potential within organic solar cells and Understanding S-shaped current-voltage characteristics of organic solar cells .
Autorenporträt
Dr. Rebecca Saive, born in Germany, took correspondence courses in physics already during high school at TU Kaiserslautern, received her pre-diploma in 2007 from Mainz University and her diploma in general physics in 2010 from TU Munich. She got her doctor's degree in 2014 from Heidelberg University and joined California Institute of Technology.