Organic position sensitive photodetectors based on lateral donor-acceptor concentration gradients

Juan Cabanillas-Gonzalez, Ovidio Peña-Rodríguez, Inma Suarez Lopez, Malte Schmidt, M. Isabel Alonso, Alejandro R. Goñi, Mariano Campoy-Quiles

    Research output: Contribution to journalArticleResearchpeer-review

    14 Citations (Scopus)

    Abstract

    We report on an organic photodiode configuration based on a donor/acceptor bilayer with opposed complementary thickness gradients. We rely on the strong dependence of the optical field on thickness to achieve spatially dependent spectral responses, a proof-of-concept for position sensitive detection. Ratiometric photocurrent values at two wavelengths allow for position determination independently of the light intensity with a spatial resolution below 600 m. © 2011 American Institute of Physics.
    Original languageEnglish
    Article number103305
    JournalApplied Physics Letters
    Volume99
    Issue number10
    DOIs
    Publication statusPublished - 5 Sep 2011

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