Heterogeneous Interfacial Properties of Ink-Jet-Printed Silver Nanoparticulate Electrode and Organic Semiconductor


  • This work was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Laboratory Program funded by the Ministry of Science and Technology (Nos. R0A-2005-000-10011-0 and R0A-2007-000-20105-0). It was also partially supported by the Second Stage of the Brain Korea 21 Project in 2007. Supporting Information is available online from Wiley InterScience or from the authors.


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An in-depth description of the chemical structure and the electronic energy state at the ink-jet-printed metal-nanoparticle electrode/organic semiconductor interface is presented. Surface oxygen atoms induce an interface dipole, which leads to an increase in the work function of the printed electrodes, thus facilitating the injection of charge carriers into the organic semiconductor.