Dresden 2017 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 33: Organic Photovoltaics and Electronics I (joint session CPP/DS/HL, organized by HL)

CPP 33.10: Vortrag

Mittwoch, 22. März 2017, 12:15–12:30, POT 81

Flexible organic solar cell with the effects of light trapping — •Yoonseok Park1, Koen Vandewal1, Karl Leo1, Jana Ber2,3, and Andrés Fabián Lasagni2,31Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden, Germany — 2Fraunhofer-Institut für Werkstoffund Strahltechnik IWS, Dresden, Germany — 3Institute for Manufacturing Technology, Technische Universität Dresden, Germany

Organic solar cells are one of the most promising candidates for future solar power generation. They are thin and lightweight with several advantages, e. g. scalability, environmental sustainability and low cost for processing and installation. In order to set up a roll-to-roll process, flexible substrates and electrodes are required. Conventional materials, e. g. glass as substrate and ITO as electrode, are however rigid and brittle. Therefore, flexible polymer materials are investigated. Besides being flexible, polymers are much easier to process and manipulate due to their relative softness as compared to glass and metal oxides. This gives the opportunity to easily introduce light trapping structures into these materials. In this study, we apply several light trapping approaches to organic solar cells. First, PET films structured with a direct laser patterning system as well as optical display films commercially developed to be used for LCD are examined as substrates. Moreover, since PEDOT:PSS electrode is prepared by a solution-based process, nanoparticles are added as light scattering elements. Finally, 2-D nanostructures are printed by a nano-imprinting technique onto the surface of PEDOT:PSS electrodes with PDMS stamps.

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