Electroluminescent Materials with Feature Sizes as Small as 5 μm Using Elastomeric Membranes as Masks for Dry Lift-Off

High resolution displays require simple, reliable methods to pattern electroluminescent materials. Here is reported the fabrication of soft, elastomeric membranes containing holes with diameters ranging from 5 μm (see Fig.) to 50 μm. By use of two membranes, the authors demonstrate multicolor photoluminescent patterns of organic materials with a solvent-free, non-photolithographic method.