Polyaniline as Hole Injection Layer (HIL) in OLEDs
Polyaniline (PAni) can be efficiently employed as HIL, and that it has a better mix of features than the commonly used PEDT. Commercially available water-borne PAni dispersions have a particle size of around 35 nm, a lateral conductivity of close to 10-6 S/cm (when deposited and dried), and luminescence performance statistics in final devices that are at least similar to PEDT, frequently up to 30% more efficient.
