ABSTRACT
Here in, several latest developments in the field of material science development and film deposition methods for the fabrication of flexible organic light-emitting devices (OLEDs) are studied. Additionally, a comparative study is performed on commonly used plastic substrates based on their mechanical, optical, thermal, and chemical behavior. The study of multilayer electrode structures, which may further be used as transparent electrodes as the best alternative to conventional indium tin oxide (ITO), is performed. Comparison is performed based on their conductivity, transparency, and banding ability. In the later part, some popular industrial manufacturing processes of flexible OLEDs such as roll-to-roll printing, inkjet printing, and screen printing are discussed in detail. In addition, the specifics and challenges, associated with foils’ reliability, the mechanical stability of the transparent electrodes with the deposition and patterning of organic emissive films, are debated.
