Printed Copper Grid Transparent Conducting Electrodes for Organic Light-Emitting Diodes

The transparent conductive electrode (TCE) is a key component of organic light-emitting diodes (OLEDs). High-resolution printed metal grids are a promising alternative to indium tin oxide (ITO). We present results for evaporated OLEDs with a printed copper (Cu) grid with line width below 3 μm. The use of a thick doped hole injection layer (HIL)...