Consecutive Deposition of Passivated Zinc Oxide Nanoparticles for Stable Charge Transport in Inverted Organic Photo-Electronics
발표자
()
초록
내용
In this study, we introduced a modified arrangement of zinc oxide nanoparticle (ZnO NP): polyethylenimine (PEI) composite electron transporting layer (ETL) of inverted organic photovoltaics (OPVs) for efficient charge transport and enhanced device stability. With suggested key attributes of ZnO NPs - high mobility, transparency, and solution processable characteristics - the high efficiency of PM6:Y6-based active layer devices was achieved by interfacial modification through adopting PEI in bilayer and nanocomposite form combined with ZnO NP interlayer. This polymeric interlayer approach enhances morphology control while forming efficient charge pathways for electron transfer. The ZnO NP:PEI nanocomposite strategy additionally acts as an encapsulant regarding ZnO layer, therefore prevents internal device degradation. Consequently, the proposed method for modifying ZnO NP interlayer is a promising technique for enhancing device performance and stability.