A general layer-by-layer printing method for scalable high-resolution full-color flexible luminescent patterns

High-resolution scalable and colorful flexible luminescent patterns are prepared through an alternate printing method in a layer-by-layer (LBL) manner without any patterned substrates or masks. The novel embedding self-assembly process retains high resolution to the sub-micrometer level. This method is applied to achieve high-resolution red, green, and blue (RGB) pixel array patterns, standard white light patterns, and various cross-typed patterns. The fabricating process is flexible and straightforward, making it useful for diverse applications in patterning nanocomposites for wearable optoelectronic devices.