Electro-Optic Properties of High-Efficiency Organic Electronics with the Addition of An Interlayer

This study investigated the electro-optic properties of organic light-emitting diode (OLED) devices with addition an interlayer. A device perfluorododecyl-1H,1H,2H,2H-triethoxysilane–perfluorotetradecyl 1H,1H,2H,2H-triethoxysilane mixture (hybrid solution) membrane applied to hole injection layer (HIL) using a self-assembled monolayer (SAM), along N,N’-Bis (naphtha-len-1-yl)-N,N’-bis(phenyl)-2,2’-dimethylbenzidine (α-NPD) transport (HTL), was fabricated and subsequently assessed. Compared without HIL, HIL SAM showed luminance 1630.16 (Cd/m2) at maximum cut-off voltage 11 V, efficiency increased ≥200% from initial turn-on 3 V voltage. These results suggest that adding interlayer consequent carrier ladder effect led more efficient transport, possibly lowering barrier allowing excellent power efficiency.