Organic Light‐Emitting Diodes Based on Imidazole Semiconductors

Organic light-emitting diodes (OLEDs) are the most successful product of organic electronics in the market and continually receive attention from sci-entific and industrial communities. Imidazoles have been extensively investi-gated for OLED applications, and demonstrated their versatility in molecular design for different functions. This review presents a summary of recent studies on imidazole (including imidazole derived moieties) derivatives, with special focus on discussing various molecular design tactics, for applications as electron-transporting materials, emitters, and host materials in OLEDs. At last, perspectives and challenges regarding to imidazole semiconductors for electroluminescence applications are also discussed.