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Contact: Dr. Antonia Roetger
Helmholtz-Zentrum Berlin für Materialien und Energie

A Simple Model

Caption: An ultra-thin dielectric layer can facilitate the extraction of charge carriers (shown here for "holes" in red) from organic semiconductors into metal contacts. It establishes a continuous connection between the energy levels in the organic material (blue) and the metal (black, the Fermi level). This improves electrical contact.

Credit: M. Oehzelt/HZB

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Related news release: Electrostatics do the trick

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