Fabrication strategies of interdigitated bimetallic electrodes for organic - optoelectronics applications

V. Reboud, N. Kehagias, Tomi Haatainen, S. Landis, A. Putz, D. Casey, L. Nagle, J. F. Rohan, R. Ginige, Jouni Ahopelto, C.M. Sotomayor Torres

    Research output: Contribution to conferenceConference articleScientific

    Abstract

    The absorption coefficient in organic polymers is known to be high ~107 m-1, thus requiring only a 100-300 nm thick film of polymer for complete absorption of visible light. However, the poor electron and hole lifetimes in organic polymers makes this short transit distances too long for the survival of the free charges and thus conventional electrodes are a handicap to enhancing the trend of increased efficiency of organic photovoltaic cells. The strategy we use to overcome this is to employ interdigitated electrodes (IDE) with nanometer spacing. The nanometer spacing (inter-electrode spacing) is such that the charges are collected before they recombine, i.e., the inter-electrode spacing should be shorter than the free carrier diffusion length.
    Original languageEnglish
    Publication statusPublished - 2008
    MoE publication typeNot Eligible
    Event1st International Symposium on Flexible Organic Electronics, IS-FOE08 - Kassandra Peninsula, Halkidiki, Greece
    Duration: 10 Jul 200811 Jul 2008

    Conference

    Conference1st International Symposium on Flexible Organic Electronics, IS-FOE08
    Abbreviated titleIS-FOE08
    CountryGreece
    CityHalkidiki
    Period10/07/0811/07/08

    Keywords

    • Nanoimprinting

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