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Grigorios Itskos, Andreas Othonos, Tobias Rauch, Sandro F. Tedde, Oliver Hayden, Maksym V. Kovalenko, Wolfgang Heiss and Stelios A. Choulis Optical Properties of Organic Semiconductor Blends with Near-Infrared Quantum-Dot Sensitizers for Light Harvesting Applications Advanced Energy Materials 1

Version of Record online: 16 JUN 2011 | DOI: 10.1002/aenm.201100182

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Conjugated polymer (P3HT)/fullerene (PCBM) blends sensitized by near-infrared quantum dots (PbS QDs) are investigated by optical spectroscopy. Pristine, binary and ternary blends of the materials with a systematic variation of the QDs to P3HT/PCBM ratio are studied by absorption, photoluminescence and pump-probe absorption. The study discusses charge transfer processes in ternary blends of organic semiconductors with near-infrared QDs for solution-processed photodetectors and photovoltaics.

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