Highly flexible transparent electrodes for organic light-emitting diode-based displays

Lewis, Jay; Grego, Sonia; Chalamala, Babu; Vick, Erik; Temple, Dorota
October 2004
Applied Physics Letters;10/18/2004, Vol. 85 Issue 16, p3450
Academic Journal
Multilayer indium-tin-oxide (ITO)–Ag–ITO stacks were evaluated as transparent conductors for flexible organic light-emitting diode (OLED) displays. The ITO–metal–ITO (IMI) samples exhibited significantly reduced sheet resistance over ITO and greater than 80% optical transmission. The IMI films deposited on plastic substrates showed dramatically improved mechanical properties when subjected to bending both as a function of radius of curvature as well as number of cycles to a fixed radius. OLEDs were fabricated on both ITO and IMI anodes, and the devices with IMI anodes showed improved performance at current densities greater than 1 mA/cm2 due to the improved conductivity of the anode.


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