Enhanced performance of perovskite light-emitting diodes by surface engineering

Abstract

Organic-Inorganic hybrid perovskite materials have attracted the interest of many researchers due to their promising properties such as low cost, solution processable fabrication, their excellent optical and electrical properties. One of promising approach to improve device performance is defect passivation, which suppress ion migration across interface and prevent electrode corrosion. Here, we report the significant beneficial effects using defect passivation and proper hole transport layer, resulting in improved efficiency and long-term stability of perovskite light-emitting diodes (PeLEDs).