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Alexander Mityashin, Yoann Olivier, Tanguy Van Regemorter, Cedric Rolin, Stijn Verlaak, Nicolas G. Martinelli, David Beljonne, Jérôme Cornil, Jan Genoe and Paul Heremans Unraveling the Mechanism of Molecular Doping in Organic Semiconductors Advanced Materials 24

Article first published online: 23 FEB 2012 | DOI: 10.1002/adma.201104269

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The mechanism by which molecular dopants donate free charge carriers to the host organic semiconductor is investigated and is found to be quite different from the one in inorganic semiconductors. In organics, a strong correlation between the doping concentration and its charge donation efficiency is demonstrated. Moreover, there is a threshold doping level below which doping simply has no electrical effect.

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